Article
Materials Science, Multidisciplinary
Daoxiu Li, Xirui Yan, Yong Fan, Guiliang Liu, Jinfeng Nie, Xiangfa Liu, Sida Liu
Summary: The anti Si/Zr-poisoning of alpha-Al grain refinement was successfully achieved using a doped TCB complex. The B-TiC in the complex released Ti atoms in the Al melts, while the C-TiB2 particles reproduced subsequently. The released Ti atoms acted as solute, limiting grain growth and assisting in the refinement of alpha-Al grains. These findings provide new directions for grain refinement in Al-Si alloys or Zr-containing Al alloys.
Article
Materials Science, Multidisciplinary
Yingang Liu, Jingqi Zhang, Qiyang Tan, Yu Yin, Shiyang Liu, Meng Li, Miaoquan Li, Qiong Liu, Ying Zhou, Tao Wu, Feng Wang, Ming-Xing Zhang
Summary: The high-strength Cu-Co alloys were fabricated using laser powder bed fusion (L-PBF) additive manufacturing, where the addition of cobalt submicron particles led to remarkable grain refinement through heterogeneous nucleation. The Cu-Co alloys demonstrated a combination of high strength and ductility, with tensile strength reaching up to 491.1 +/- 12.6 MPa after post L-PBF heat treatment, without sacrificing ductility.
Review
Metallurgy & Metallurgical Engineering
Z. Fan, F. Gao, Y. Wang, S. H. Wang, J. B. Patel
Summary: This paper provides a comprehensive overview of grain refinement of Mg-alloys using native MgO particles. It shows that intensive melt shearing can make more native MgO particles available for grain refinement, and other exogenous particles are not more effective than native MgO.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Feng Wang, Yu-Lung Chiu, Dmitry Eskin, Wenjia Du, Paul R. Shearing
Summary: The study found that the addition of vanadium can cause grain refinement of cast commercial purity aluminium, mainly due to the high nucleation potency and sufficient growth restriction effect of Al10V particles. In addition, the relatively large size of Al10V particles helps to promote the nucleation of aluminium grains.
MATERIALS CHARACTERIZATION
(2021)
Article
Chemistry, Physical
Cezary Rapiejko, Dominik Mikusek, Bartlomiej Januszewicz, Krzysztof J. J. Kubiak, Tadeusz Pacyniak
Summary: The microstructure of AZ91 magnesium-aluminium alloy was refined by inoculating with zirconium. A zirconium content concentration of 0.3 wt% resulted in shortened solidification time and further refinement of the microstructure.
Article
Engineering, Manufacturing
Qiyang Tan, Yu Yin, Arvind Prasad, Gan Li, Qiang Zhu, David Henry StJohn, Ming-Xing Zhang
Summary: Grain refinement is essential for improving mechanical properties in additively manufactured alloys, and the role of solute in promoting heterogeneous nucleation needs to be considered.
ADDITIVE MANUFACTURING
(2022)
Article
Metallurgy & Metallurgical Engineering
Hengbin Liao, Meiyan Zhan, Chengbo Li, Zhiqiang Ma, Jun Du
Summary: In this study, MgAl2O4 powder was used as a nucleating substrate for alpha-Mg grain in Mg-Al alloys. The optimal conditions for achieving the smallest grain size and highest grain refining ratio in Mg-3Al alloy were found to be adding 2 wt.% MgAl2O4 powder. Crystallographic calculations confirmed the possible orientation relationships between alpha-Mg and MgAl2O4, supporting the role of MgAl2O4 particles as heterogeneous nucleation substrates.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Materials Science, Multidisciplinary
Xiangzhen Zhu, Shihao Wang, Xixi Dong, Xiangfa Liu, Shouxun Ji
Summary: In this study, the morphologies of AlP crystals were comprehensively studied, revealing two categories of AlP crystals and their morphological templated nucleation of primary Si phase. This process increased the percentage of primary Si twin crystals in the alloy and eliminated dendritic growth and hopper structures inside primary Si, maintaining faceted solid crystals through layer-by-layer growth mechanism. The insight into morphologically templated nucleation provides a new perspective on the mechanism of heterogeneous nucleation of primary Si phase on AlP nuclei.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Xiaotong Pang, Zhihui Xiong, Shilong Liu, Junhao Sun, R. D. K. Misra, H. Kokawa, Zhuguo Li
Summary: Significant grain refinement of beta grains in metastable beta TB2 titanium alloy was achieved through the minor addition of zirconium diboride during laser melting deposition. The addition of 0.5 wt% ZrB2 resulted in smaller beta grains and improved mechanical properties, including higher ultimate tensile strength and ductility.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Sebastian Samberger, Irmgard Weissensteiner, Lukas Stemper, Christina Kainz, Peter J. Uggowitzer, Stefan Pogatscher
Summary: This study presents age-hardenable, fine-grained AlMgZnCu crossover alloys intended for superplastic and quick plastic forming processes. These alloys utilize T-phase (Mg32(Al,Zn)49) to refine the grain structure and increase age-hardening. The study demonstrates the importance of particle stimulated nucleation (PSN) using T-phase particles, which leads to a fine grain size as low as 4 μm. The resulting alloys have excellent high-temperature forming properties and high stability.
Article
Materials Science, Multidisciplinary
Yanqiang Li, Hongxiang Jiang, Hao Sun, Lili Zhang, Jie He, Jiuzhou Zhao
Summary: A theoretical model was developed to investigate the microstructure evolution during the solidification of a liquid-solid phase separation alloy under the influence of electric current pulses (ECPs). Experimental and simulation results demonstrated that ECPs can enhance melt convection through Joule heating, induce migration of minority phase particles, and effectively promote their nucleation and refinement. The peak current density of ECPs and the temperature drop in the nucleation region were found to be crucial parameters determining the refinement extent of minority phase particles.
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Qiyang Tan, Zhiqi Fan, Xiaoqin Tang, Yu Yin, Gan Li, Danni Huang, Jingqi Zhang, Yingang Liu, Feng Wang, Tao Wu, Xianliang Yang, Han Huang, Qiang Zhu, Ming-Xing Zhang
Summary: The study proposed a novel strategy combining substrate modification and inoculation treatment to successfully fabricate crack-free and dense high-strength 7075 alloy using SLM. This strategy can be implemented for SLM of other engineering alloys, providing a foundation for broadening industrial applications of SLM.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
Lili Zhang, Yan Song, Linjie Yang, Jiuzhou Zhao, Jie He, Hongxiang Jiang
Summary: The synergistic effect of TiB2 (in the form of Al-5Ti-1B) and La on grain refining in Al-2Cu alloy was investigated. The addition of Al-5Ti-1B significantly refines alpha-Al grains, and further refinement is achieved with the addition of trace La. Satisfactory grain refining results are achieved when the La addition level reaches 600 ppm.
Article
Materials Science, Multidisciplinary
Guniputi Bala Narasimha, S. M. Murigendrappa
Summary: This study investigates the effect of cerium and aluminium on Cu-Al-Be shape memory alloys. Increasing cerium reduces grain size, increases transformation temperatures, and decreases shape recovery ratio, with the alloy containing 0.1wt% cerium exhibiting the highest tensile strength and ductility.
MATERIALS CHARACTERIZATION
(2022)
Review
Materials Science, Multidisciplinary
Z. Fan, F. Gao, Y. Wang, H. Men, L. Zhou
Summary: Grain refinement is crucial for enhancing mechanical performance and controlling cast defects in metallic materials. Despite extensive historical research, there are still critical questions unanswered.
PROGRESS IN MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Yanwu Guo, Wu Wei, Wei Shi, Xiaorong Zhou, Hui Huang, Shengping Wen, Xiaolan Wu, Kunyuan Gao, Li Rong, Peng Qi, Zuoren Nie
Summary: The Er and Zr modified Al-Mg alloy manufactured by selective laser melting showed improved mechanical properties and strength after aging treatment. The synergistic precipitation of Er and Zr led to the formation of bimodal grain structures, promoting phase evolution in the alloy.
Review
Materials Science, Multidisciplinary
Ewan Lordan, Yijie Zhang, Kun Dou, Alain Jacot, Chrysoula Tzileroglou, Shihao Wang, Yun Wang, Jayesh Patel, Jaime Lazaro-Nebreda, Xiaorong Zhou, Teruo Hashimoto, Zhongyun Fan
Summary: This article provides an overview of the research conducted at the EPSRC Future LiME Hub on high-pressure die casting (HPDC) between 2015-2022. The study aimed to address the variability in tensile ductility of die-cast structures and develop innovative processing techniques. It was found that processing parameters and die design significantly influenced the microstructure and tensile ductility variability of die-cast products. Additionally, intensive melt shearing was found to induce grain refinement and enable novel heat treatment procedures.
Review
Materials Science, Multidisciplinary
Hua Men, Changming Fang, Zhongyun Fan
Summary: This study investigates the effects of the physical and chemical properties of the substrate on prenucleation using classical molecular dynamics and ab initio MD simulations. It reveals that the physical origin of prenucleation is structural templating, which is influenced by the lattice misfit, chemical interaction, and substrate surface roughness at the atomic level. Prenucleation ultimately determines substrate's nucleation potency and provides a precursor for heterogeneous nucleation at the nucleation temperature.
Article
Materials Science, Multidisciplinary
Changming Fang, Zhongyun Fan
Summary: In this study, an ab initio molecular dynamics simulation technique was used to investigate the chemical segregation of Sc, Y, and La atoms at the liquid/γ-Al2O3 interface. The results revealed that the segregation of these atoms resulted in the reconstruction and roughening of the substrate surface. This study opens a new path for manipulating solidification processes through chemical segregation at the liquid/substrate interface.
Article
Materials Science, Multidisciplinary
Hua Men, Zhongyun Fan
Summary: In this study, molecular dynamics simulations were used to investigate the atomic ordering in liquid aluminum adjacent to amorphous substrates with smooth and rough surfaces. The study revealed that the liquid exhibited layering within about 5 atomic layers but no visible in-plane atomic ordering at the interface with the smooth amorphous surface. The smooth amorphous surface induced local ordered structure in the liquid at the interface through a structural templating mechanism, promoting heterogeneous nucleation.
Article
Materials Science, Multidisciplinary
Feng Gao, Zhongyun Fan
Summary: This study focuses on the competition among different types of solid particles during the solidification process of metallic materials. Numerical calculations using a solidification model reveal that the competition for nucleation is strongly influenced by the nucleation undercooling of the particles, while the competition for grain initiation is closely related to the sizes of the solid particles.
Review
Materials Science, Multidisciplinary
Yun Wang, Shihao Wang, Zhongping Que, Changming Fang, Teruo Hashimoto, Xiaorong Zhou, Quentin M. Ramasse, Zhongyun Fan
Summary: During solidification of metallic materials, the nucleation potency of substrates is affected by the atomic arrangements, lattice misfit, surface roughness, and chemical interaction. Current studies on metal/substrate interfaces show that alloying elements tend to segregate and form compounds at the interfaces, significantly affecting nucleation potency and the subsequent solidification process.
Article
Materials Science, Multidisciplinary
Jaime Lazaro-Nebreda, Jayesh B. Patel, Ewan Lordan, Yijie Zhang, Erdem Karakulak, Kawther Al-Helal, Geoff M. Scamans, Zhongyun Fan
Summary: This article presents an overview of the research and development of an innovative High Shear Melt Conditioning (HSMC) degassing technology for aluminum alloy melts. Compared to conventional rotary degassing, this novel technique efficiently disperses oxides and inert gas bubbles, resulting in improved melt quality and reduced processing costs.
Review
Materials Science, Multidisciplinary
Zhongping Que, Yun Wang, Chamini L. Mendis, Changming Fang, Junhai Xia, Xiaorong Zhou, Zhongyun Fan
Summary: This paper provides an overview of the recent research progress on nucleation, formation, and control of intermetallic compounds (FIMCs) in aluminum alloys. By analyzing the characteristics and phase transformations of FIMCs, various approaches to microstructural control of FIMCs are proposed and validated, leading to significant refinement of FIMCs.
Review
Materials Science, Multidisciplinary
Changming Fang, Zhongyun Fan
Summary: This article provides an overview of recent studies on prenucleation at liquid-metal/oxide interfaces using ab initio molecular dynamics simulation techniques. The formation of an ordered metal layer terminating the oxide substrates in liquid light metals has been observed, which strongly affects the prenucleation process. The manipulation of nucleation potency of substrate surfaces through elemental segregation is suggested to control the solidification processes.
Article
Materials Science, Multidisciplinary
Changming Fang, Zhongping Que, Maaouia Souissi, Zhongyun Fan
Summary: In this study, the stability, crystal structure, electronic and mechanical properties of Cu and Si co-doped theta-phase were investigated using first-principles density-functional theory. The calculations revealed the high stability of a quaternary theta-phase with enhanced bulk modulus due to the co-doping. These findings are important for understanding the formation of theta-phase and related phase transformations in Al alloys during casting.
Article
Materials Science, Multidisciplinary
Meilin Wang, Wu Wei, Wei Shi, Xiaorong Zhou, Shengping Wen, Xiaolan Wu, Kunyuan Gao, Li Rong, Peng Qi, Hui Huang, Zuoren Nie
Summary: Isothermal hot compression experiments were conducted to investigate the hot deformation behavior and optimum processing parameters of Al-Mg-Si-Er-Zr alloy. The results showed that dynamic recovery and continuous dynamic recrystallization were the main softening mechanisms. The addition of Er and Zr increased the activation energy due to the formation of Al3(Er, Zr) particles.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Yanwu Guo, Wu Wei, Hui Huang, Shengping Wen, Wei Shi, Xiaorong Zhou, Xiaolan Wu, Kunyuan Gao, Li Rong, Peng Qi, Zuoren Nie
Summary: The microstructure and mechanical properties of Er/Zr modified A357 alloy in as-built and stress relief annealing conditions were investigated to enhance the mechanical properties of Al-Si alloys fabricated by selective laser melting. The addition of 0.15 wt.% Er helped refine the cellular size and promote equiaxed grain formation. The average grain size of the modified sample was 3.1 +/- 1.4 mm, and the yield strength, tensile strength, and elongation reached 333 +/- 2 MPa, 454 +/- 1 MPa, and 12.5 +/- 1%, respectively. Stress relief annealing resulted in a decrease in strength and an increase in elongation, but the nano-sized L12-structure particles in the Er-Zr composite modified sample compensated for the loss of strength to some extent. Therefore, Er-Zr composite modification is an effective method to improve the comprehensive mechanical properties of SLM processed Al-Si alloys.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Changming Fang, Zhongyun Fan
Summary: Segregation of alkaline earth (AE) atoms on the interfaces between liquid metal and oxide substrates alters the geometry and chemistry of the substrate surfaces, thus affecting their ability to induce solid metal nucleation. This study uses ab initio molecular dynamics to investigate the segregation effects of Mg, Sr, and Ba atoms on liquid Al and ?-Al2O3{1 1 1} substrates. The results reveal the high stability and localized nature of the segregated AE atoms on the oxide substrates, leading to reconstruction of the terminating metal atoms and atomic roughness of the substrate surfaces, which in turn modifies the substrate potency. This suggests the potential for controlling solidification processes through the segregation of specific impure atoms.
Article
Nanoscience & Nanotechnology
Qing Cai, Changming Fang, Ewan Lordan, Yun Wang, Isaac T. H. Chang, Brian Cantor
Summary: A novel near-eutectic Al-15.0Si-4.1Ni-1.9Fe (wt%) alloy with a ternary eutectic reaction was investigated. The alloy exhibited short nanoscale fibrous morphologies of eutectic Si and (Al,Si)5(Fe,Ni) phases. The newly developed alloy displayed superior mechanical properties at room and elevated temperatures compared with other heat-resistant aluminium alloys, suggesting great potential for industrial applications.
SCRIPTA MATERIALIA
(2023)
Article
Materials Science, Multidisciplinary
Y. Liu, K. Zweiacker, C. Liu, J. T. McKeown, J. M. K. Wiezorek
Summary: The evolution of rapid solidification microstructure and solidification interface velocity of hypereutectic Al-20at.%Cu alloy after laser melting has been studied experimentally. It was found that the formation of microstructure was dominated by eutectic, alpha-cell, and banded morphology grains, and the growth modes changed with increasing interface velocity.
Article
Materials Science, Multidisciplinary
Bharat Gwalani, Julian Escobar, Miao Song, Jonova Thomas, Joshua Silverstein, Andrew Chihpin Chuang, Dileep Singh, Michael P. Brady, Yukinori Yamamoto, Thomas R. Watkins, Arun Devaraj
Summary: Castable alumina forming austenitic alloys exhibit superior creep life and oxidation resistance at high temperatures. This study reveals the mechanism behind the enhanced creep performance of these alloys by suppressing primary carbide formation and offers a promising alloy design strategy for high-temperature applications.
Article
Materials Science, Multidisciplinary
Jian Song, Qi Zhang, Songsong Yao, Kunming Yang, Houyu Ma, Jiamiao Ni, Boan Zhong, Yue Liu, Jian Wang, Tongxiang Fan
Summary: Recent studies have shown that achieving an atomically flat surface for metals can greatly improve their oxidation resistance and enhance their electronic-optical applications. Researchers have explored the use of graphene as a covering layer to achieve atomically flat surfaces. They found that high-temperature deposited graphene on copper surfaces formed mono-atomic steps, while annealed copper and transferred graphene on copper interfaces formed multi-atomic steps.
Article
Materials Science, Multidisciplinary
Jennifer A. Glerum, Jon-Erik Mogonye, David C. Dunand
Summary: Elemental powders of Al, Ti, Sc, and Zr are blended and processed via laser powder-bed fusion to create binary and ternary alloys. The microstructural analysis and mechanical testing show that the addition of Ti results in the formation of primary precipitates, while the addition of Sc and Zr leads to the formation of fine grain bands. The Al-0.25Ti-0.25Zr alloy exhibits comparable strain rates to Al-0.5Zr at low stresses, but significantly higher strain rates at higher stresses during compressive creep testing. Finite element modeling suggests that the connectivity of coarse and fine grain regions is a critical factor affecting the creep resistance of the alloys.
Article
Materials Science, Multidisciplinary
P. Jannotti, B. C. Hornbuckle, J. T. Lloyd, N. Lorenzo, M. Aniska, T. L. Luckenbaugh, A. J. Roberts, A. Giri, K. A. Darling
Summary: This work characterizes the thermo-mechanical behavior of bulk nanocrystalline Cu-Ta alloys under extreme conditions. The experiments reveal that the alloys exhibit unique mechanical properties, behaving differently from conventional nanocrystalline Cu. They do not undergo grain coarsening during extrusion and exhibit behavior similar to coarse-grained Cu.
Article
Materials Science, Multidisciplinary
Yiqing Wei, Jingwei Li, Daliang Zhang, Bin Zhang, Zizhen Zhou, Guang Han, Guoyu Wang, Carmelo Prestipino, Pierric Lemoine, Emmanuel Guilmeau, Xu Lu, Xiaoyuan Zhou
Summary: This study proposes a new strategy to modify microstructure by phase regulation, which can simultaneously enhance carrier mobility and reduce lattice thermal conductivity. The addition of Cu in layered SnSe2 induces a phase transition that leads to increased grain size and reduced stacking fault density, resulting in improved carrier mobility and lower lattice thermal conductivity.
Article
Materials Science, Multidisciplinary
Jia Chen, Zhengyu Zhang, Eitan Hershkovitz, Jonathan Poplawsky, Raja Shekar Bhupal Dandu, Chang-Yu Hung, Wenbo Wang, Yi Yao, Lin Li, Hongliang Xin, Honggyu Kim, Wenjun Cai
Summary: In this study, the structural origin of the pH-dependent repassivation mechanisms in multi-principal element alloys (MPEA) was investigated using surface characterization and computational simulations. It was found that selective oxidation in acidic to neutral solutions leads to enhanced nickel enrichment on the surface, resulting in reduced repassivation capability and corrosion resistance.
Article
Materials Science, Multidisciplinary
X. Y. Xu, C. P. Huang, H. Y. Wang, Y. Z. Li, M. X. Huang
Summary: The limited slip systems of magnesium (Mg) and its alloys hinder their wide applications. By conducting tensile straining experiments, researchers discovered a rate-dependent transition in the dislocation mechanisms of Mg alloys. At high strain rates, glissile dislocations dominate, while easy-glide dislocations dominate at low strain rates. Abundant glissile dislocations do not necessarily improve ductility.
Article
Materials Science, Multidisciplinary
M. S. Szczerba, M. J. Szczerba
Summary: Inverse temperature dependences of the detwinning stress were observed in face-centered cubic deformation twins in Cu-8at.%Al alloy. The detwinning stress increased with temperature when the pi detwinning mode was involved, but decreased when the pi/3 mode was involved. The dual effect of temperature on the detwinning stress was due to the reduction of internal stresses pre-existing within the deformation twins. The complete reduction of internal stresses at about 530 degrees C led to the equivalence of the critical stresses of different detwinning modes and a decrease in the yield stress anisotropy of the twin/matrix structure.
Article
Materials Science, Multidisciplinary
Taowen Dong, Tingting Qin, Wei Zhang, Yaowen Zhang, Zhuoran Feng, Yuxiang Gao, Zhongyu Pan, Zixiang Xia, Yan Wang, Chunming Yang, Peng Wang, Weitao Zheng
Summary: The interaction between the electrode and the electric double layer (EDL) significantly influences the energy storage mechanism. By studying the popular alpha-Fe2O3 electrode and the EDL interaction, we find that the energy storage mechanism of the electrode can be controlled by modulating the EDL.
Article
Materials Science, Multidisciplinary
Matthew R. Barnett, Jun Wang, Sitarama R. Kada, Alban de Vaucorbeil, Andrew Stevenson, Marc Fivel, Peter A. Lynch
Summary: The elastic-plastic transition in magnesium alloy Mg-4.5Zn exhibits bursts of deformation, which are characterized by sudden changes in grain orientation. These bursts occur in a coordinated manner among nearby grains, with the highest burst rate observed at the onset of full plasticity. The most significant burst events are associated with twinning, supported by the observation of twinned structures using electron microscopy. The bursts are often preceded and followed by a stasis in peak movement, indicating a certain "birth size" for twins upon formation and subsequent growth at a later stage.
Article
Materials Science, Multidisciplinary
Vaidehi Menon, Sambit Das, Vikram Gavini, Liang Qi
Summary: Understanding solute segregation thermodynamics is crucial for investigating grain boundary properties. The spectral approach and thermodynamic integration methods can be used to predict solute segregation behavior at grain boundaries and compare with experimental observations, thus aiding in alloy design and performance control.
Article
Materials Science, Multidisciplinary
Feiyu Qin, Lei Hu, Yingcai Zhu, Yuki Sakai, Shogo Kawaguchi, Akihiko Machida, Tetsu Watanuki, Yue-Wen Fang, Jun Sun, Xiangdong Ding, Masaki Azuma
Summary: This study reports on the negative and zero thermal expansion properties of Cd2Re2O7 and Cd1.95Ni0.05Re2O7 materials, along with their ultra-low thermal conductivity. Through investigations of their structures and phonon calculations, the synergistic effect of local structure distortion and soft phonons is revealed as the key to achieving these distinctive properties.
Article
Materials Science, Multidisciplinary
Thomas Beerli, Christian C. Roth, Dirk Mohr
Summary: A novel testing system for miniature specimens is designed to characterize the plastic response of materials for which conventional full-size specimens cannot be extracted. The system has an automated operation process, which reduces the damage to specimens caused by manual handling and improves the stability of the test results. The experiments show that the miniature specimens extracted from stainless steel and aluminum have high reproducibility, and the results are consistent with those of conventional-sized specimens. A correction procedure is provided to consider the influence of surface roughness and heat-affected zone caused by wire EDM.
Article
Materials Science, Multidisciplinary
Rani Mary Joy, Paulius Pobedinskas, Nina Baule, Shengyuan Bai, Daen Jannis, Nicolas Gauquelin, Marie-Amandine Pinault-Thaury, Francois Jomard, Kamatchi Jothiramalingam Sankaran, Rozita Rouzbahani, Fernando Lloret, Derese Desta, Jan D'Haen, Johan Verbeeck, Michael Frank Becker, Ken Haenen
Summary: This study investigates the influence of film microstructure and composition on the Young's modulus and residual stress in nanocrystalline diamond thin films. The results provide insights into the mechanical properties and intrinsic stress sources of these films, and demonstrate the potential for producing high-quality nanocrystalline diamond films under certain conditions.
