Article
Chemistry, Physical
Diksha Mahadule, Rajesh K. Khatirkar, Saurabh K. Gupta, Aman Gupta, Tushar R. Dandekar
Summary: The study investigated the effect of heat treatment on the microstructure and corrosion behavior of a high Mo containing titanium alloy. Different microstructures were observed depending on the heating temperature and cooling conditions. Heat-treated samples showed improved corrosion resistance, attributed to the presence of stable TiO2 film on the corroded surfaces. Samples treated at 950 degrees Celsius exhibited the best corrosion resistance overall.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Bosung Seo, Hyung-Ki Park, Chang-Soo Park, Seongtak Kim, Kwangsuk Park
Summary: The corrosion resistance of ASTM Grade 13 titanium alloy was further improved by manipulating the cathodic modification effect. The cathodic modification was mainly related to the Ti2Ni precipitate, which was controlled by minor Ru in terms of size and distribution. Parameters such as temperature and cooling rate during the recrystallization process were designed to control precipitation behavior.
Article
Materials Science, Multidisciplinary
Tao Zhu, Yi Yu, Jie Yang, Yongshui Shen, Liuyong He, Ying Xiong
Summary: The study showed that specimens with different orientations exhibited differences in corrosion performance in simulated body fluid, with electrochemical corrosion resistance decreasing with increasing flow rate. Localized corrosion was observed in specimens immersed in SBF solution, with increased flow rate intensifying the corrosion.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Ceramics
Zeliang Ding, Quan Zhou, Yi Wang, Ziyu Ding, Yinghong Tang, Quanguo He
Summary: In recent years, tantalum pentoxide (Ta2O5) ceramic coating has been widely studied for modification of implants due to its excellent biocompatibility, corrosion resistance, and wear resistance. The Ta2O5/Ta2O5-Ti/Ti coating exhibited superior adhesion strength, mechanical properties, and wear resistance compared to Ta2O5 and Ta2O5/Ti coatings. The experimental results suggest that these Ta2O5-based coatings can provide excellent corrosion protection for Ti-6Al-4V alloy, with the Ta2O5 monolayer showing the best corrosion resistance due to its thick out-layer Ta2O5 film.
CERAMICS INTERNATIONAL
(2021)
Article
Metallurgy & Metallurgical Engineering
Yuxiang Liu, Michele Curioni, Shiyun Dong, Zhu Liu
Summary: In this study, the biodegradable Mg-1Ca alloy was modified using a KrF excimer laser, and the degradation behavior of the alloy before and after laser treatment was investigated. The results showed that the corrosion resistance of the alloy was improved after laser treatment, and a two-layer structure was formed.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
Tao Zhu, Aoxuan Zhang, Yongshui Shen, Xinghua Gong, Ying Xiong
Summary: This study investigated the corrosion behavior of rolled AZ80 magnesium alloy in different orientations, with the results showing that the TD sample exhibited better corrosion performance with mainly uniform corrosion, while severe localized corrosion occurred in the ND sample.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Chemistry, Physical
Zhiyuan Feng, Charles C. Xu, Dadi Zhang, Rudolph Buchheit
Summary: The study showed that the corrosion resistance of AZ31 Mg alloy was significantly improved after coating treatment with 5 mM or 10 mM sodium selenite, with the protection mechanism attributed to the transformation of selenite to insoluble selenium, the formation of insoluble MgSeO3 hydrate, and the polymerization of amorphous selenium.
Article
Materials Science, Multidisciplinary
Agata Sotniczuk, Witold Chrominski, Boguslawa Adamczyk-Cieslak, Marcin Pisarek, Halina Garbacz
Summary: This study provides insights into the effects of nanostructure and crystallographic texture on Ti corrosion resistance under simulated inflammatory conditions. The development of a basal texture component was found to provide the most advantageous corrosion properties for prolonged immersion in a simulated inflammatory environment.
Article
Electrochemistry
A. Maria Osipenko, S. Dzmitry Kharytonau, Aliaksandr A. Kasach, Jacek Ryl, Janusz Adamiec, I. Irina Kurilo
Summary: This study investigated the corrosion inhibition of the AZ31 magnesium alloy in NaCl solutions containing different concentrations of sodium molybdate inhibitor. Various experimental methods were used to examine the mechanism of molybdate corrosion inhibition. The results showed that Na2MoO4 inhibitor provided reliable inhibition at high concentrations (150 mM). Surface examination confirmed the formation of a protective surface layer of mixed Mo (VI, V, IV) species.
ELECTROCHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
Bosung Seo, Hyung-Ki Park, Chang-Soo Park, Kwangsuk Park
Summary: Great improvement in corrosion resistance was achieved by adding a small amount of Ta to ASTM Gr13 titanium alloy. The enhanced corrosion resistance was mainly attributed to the stabilized passive film that prolonged the time for passivity loss. OCP and EIS results demonstrated that the addition of Ta delayed the transition from the passive state to the corroding state and inhibited the loss of passivity.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Metallurgy & Metallurgical Engineering
K. S. Duran, N. Hernandez, L. M. Rueda, C. A. Hernandez-Barrios, A. E. Coy, F. Viejo
Summary: This study developed multilayer barrier-bioactive coatings to enhance the corrosion resistance of magnesium alloy and promote the growth of apatite-like phases. However, an increase in salt content led to the formation of porous coatings, affecting the corrosion resistance of magnesium alloy.
JOURNAL OF MAGNESIUM AND ALLOYS
(2021)
Article
Materials Science, Multidisciplinary
E. Naderi, A. Davoodi, H. R. Jafarian
Summary: The corrosion of WE43 magnesium alloys was studied after the equal-channel angular pressing (ECAP) process with different passes. The results showed that the samples with 2P and 3P exhibited better corrosion resistance. This was attributed to the precipitation of beta particles with a higher volume fraction, which served as cathodic reaction sites.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Di-Feng Luo, Pan Ning, Fan Zhang, Yan Zhou, Hong-Mei Zhang, Tao Fu
Summary: Tantalum, a new type of medical metal, was subjected to hydrothermal calcification in a CaHPO(4) solution to improve its bioactivity. The treated surface showed the formation of tantalum oxide film and calcium phosphate precipitates, leading to enhanced hydrophilicity, corrosion resistance, and the ability to induce apatite layer formation. This method may be suitable for bioactive surface modification of tantalum implants with irregular shapes and porous structures.
Article
Materials Science, Multidisciplinary
Jignesh Hirpara, Vipin Chawla, Ramesh Chandra
Summary: The study found that depositing tantalum oxynitride film on stainless steel surface can significantly improve its corrosion resistance in 1M NaCl solution, demonstrating excellent anticorrosive properties.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2021)
Article
Materials Science, Multidisciplinary
Pengfei Ji, Shuguang Liu, Hongyun Deng, Hongzhi Ren, Jingkang Zhang, Taojian Sun, Kuixue Xu, Chunbao Shi
Summary: Coatings prepared by magnetron sputtering on titanium alloy substrates can improve the surface hardness and corrosion resistance of the alloy, effectively hinder the growth of columnar structures, and exhibit excellent cytocompatibility.
Article
Materials Science, Multidisciplinary
Z. Wang, O. Muransky, H. Zhu, T. Wei, Z. Zhang, M. Ionescu, C. Yang, J. Davis, G. Hu, P. Munroe, W. Windes
Summary: The ion irradiation-induced microstructural changes in a carbon-fibre reinforced carbon-matrix (C/C) composite were investigated using Raman spectroscopy. It was found that the high concentration of pre-existing crystal lattice defects in the C/C composite had a significant impact on the disordering of the crystal lattice. In contrast, graphite with fewer pre-existing defects behaved in a more predictable manner. The results suggest the importance of eliminating crystal lattice defects in the as-manufactured microstructure of C/C composites for radiation-tolerant applications. Additionally, the study identified a knowledge gap regarding the electronic energy loss effect on ion irradiation damage in carbon-based materials at intermediate ion energies.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Environmental Sciences
JinKiat Chew, Stephen Joseph, Guanhong Chen, Yuyue Zhang, Longlong Zhu, Minglong Liu, Sarasadat Taherymoosavi, Paul Munroe, Genxing Pan, Lianqing Li, Rongjun Bian, Xiaorong Fan, David R. G. Mitchell
Summary: This study found that micron-sized biochar-based compound fertilisers (mBCF) can significantly enhance the growth and nutrient uptake of rice seedlings. The application of mBCF increased the shoot biomass of rice seedlings by 33% and improved the accumulation rates of nitrogen, phosphorus, potassium, iron, and other nutrients. Additionally, mBCF treatment affected the expression levels of nutrient transporter genes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Materials Science, Coatings & Films
Musharaf Abbas, Arslan Khalid, Gregory M. Smith, Paul R. Munroe
Summary: This study investigates the formation behavior of Ni particles plasma sprayed onto AISI 1008 mild steel and 316 austenitic stainless steel substrates to compare the splat formation on both surfaces. Analytical techniques were used to analyze the characteristics of the splats formed on both substrates. Most of the observed splats were halo type splats driven by Rayleigh-Taylor instabilities. A linear relationship was found between the size of the splats' central core and their outer ring of debris, which was distinct for each substrate. Diffusion analysis showed a higher degree of diffusion across the interface between splat and stainless steel substrate, suggesting a better bond efficiency for stainless steel. Cross-sectional observations and theoretical calculations showed evidence of substrate melting and metallurgical bonds for both mild steel and stainless steel substrates.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Chuhan Sha, Zhifeng Zhou, Zonghan Xie, Paul Munroe
Summary: A series of CoCrNiAlTi coatings were deposited on M2 steel substrates using DC magnetron sputtering. By adjusting the substrate bias voltage, the composition and microstructure of the coatings were modified. The coating deposited at -80V exhibited the highest hardness and damage tolerance, possibly due to the presence of nanotwins and dual-phase microstructure.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Physical
Arslan Khalid, Musharaf Abbas, Yongang Zhang, Margaret Hyland, Paul R. Munroe
Summary: This study investigates the bonding and adherence of spray particles to the substrate in thermal spray coatings. The addition of chromium to nickel promotes improved adherence and modifies the formation of the spray particles.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Shuang Peng, Jiang Xu, Zong-Han Xie, Paul Munroe
Summary: This study engineered a TiZrHfMoW refractory high entropy alloy (RHEA) nanocrystalline coating onto a commercially pure Ti substrate to improve its corrosion resistance for potential application in proton exchange membrane fuel cells (PEMFCs). The results showed that the RHEA coating exhibited enhanced corrosion resistance and maintained a stable passive state.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Rumana Akhter, Avi Bendavid, Paul Munroe
Summary: The application of a negative substrate bias in physical vapor deposition has significant effects on the surface morphology, microstructure, and mechanical characteristics of ceramic-based coatings. Increasing bias voltage results in a transition from fine columnar grains to refined equiaxed grains, accompanied by enhanced hardness and reduced defect density.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Ceramics
Yuhao Chen, Jiang Xu, Zong-Han Xie, Paul Munroe
Summary: In this study, a TaCN nanoceramic coating was engineered to improve the corrosion resistance and surface conductivity of metal bipolar plates in proton exchange membrane fuel cells. The TaCN coating exhibited superior corrosion resistance, significantly enhancing the performance of the titanium substrate while maintaining a passive state, making it a competitive protective coating for bipolar plates.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Ashok Meghwal, Surinder Singh, Ameey Anupam, Hannah J. King, Christiane Schulz, Colin Hall, P. Munroe, Christopher C. Berndt, Andrew Siao Ming Ang
Summary: In this study, an AlCoCrFeNi HEA coating was fabricated using gas atomized feedstock and the HVOF process. The coating exhibited resistance to surface degradation at room temperature and had high micro-and nano-hardness. However, the presence of the hard BCC/B2 phase composition led to severe brittleness and affected the wear resistance of the coating. The coating also showed superior general corrosion resistance but was susceptible to pitting corrosion due to the selective dissolution of the B2 phase.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Environmental Sciences
Sara Tahery, Paul Munroe, Christopher E. Marjo, Aditya Rawal, Joseph Horvat, Mohanad Mohammed, J. Beau W. Webber, Ji-Youn Arns, Christoph H. Arns, Genxing Pan, Rongjun Bian, Stephen Joseph
Summary: This study aims to compare the characteristics of NPK granule and BNPK granule, and investigate the nutrient storage mechanism of BNPK granule in soil. The results show that BNPK granule has a larger surface area and porosity, exhibiting higher capacity to store and donate electrons, and relatively lower mineral elements dissolution, indicating the superiority of BNPK granule.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Materials Science, Multidisciplinary
Minming Jiang, Jiang Xu, Paul Munroe, Zong-Han Xie
Summary: Doping with Au atoms significantly reduces the adsorption energy of CO on WS2 monolayers and forms a new C=S double bond. The WS2/Au monolayer exhibits excellent CO detection sensitivity, while the adsorption and electronic properties for other gases remain relatively unchanged.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Minming Jiang, Jiang Xu, Paul Munroe, Zong-Han Xie
Summary: In this study, the hydrogen storage mechanism on the CuNi co-doped MgH2(101) surface was investigated using the first-principles approach. The results showed that the most stable adsorption site for hydrogen on the surface is above the Ni atom, and there is substantial charge exchange between the hydrogen molecule and Ni atom.
Article
Engineering, Environmental
Yang Wang, Stephen Joseph, Xiang Wang, Zhe H. Weng, David R. G. Mitchell, Mitchell Nancarrow, Sarasadat Taherymoosavi, Paul Munroe, Guitong Li, Qimei Lin, Qing Chen, Markus Flury, Annette Cowie, Olivier Husson, Lukas Van Zwieten, Yakov Kuzyakov, Johannes Lehmann, Baoguo Li, Jianying Shang
Summary: Biochar amendments increased total soil carbon by 71%, 182%, and 210% for B30, B60, and B90, respectively. The application of biochar at different rates significantly increased the subsoil inorganic carbon (SIC), mainly occurring in the subsoil below 1 m. The study provided critical knowledge on the impact of biochar application on carbon stocks in subsoil in the long term.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Ashok Meghwal, Samuel Pinches, Ameey Anupam, Lionel Lie, Paul Munroe, Christopher C. Berndt, Andrew Siao Ming Ang
Summary: In this study, a near-dense and crack-free CoCrFeNi medium entropy alloy (MEA) coating was fabricated using extreme-high-speed laser material deposition (EHLA). The coating retained a single-phase face-centered cubic (FCC) structure, and showed anisotropic mechanical deformation behavior at a localized level. Microstructure-mechanical property correlations confirmed the homogeneous mechanical properties of the coating at the bulk level.
Article
Nanoscience & Nanotechnology
Ashok Meghwal, Surinder Singh, Soumya Sridar, Wei Xiong, Colin Hall, Paul Munroe, Christopher C. Berndt, Andrew Siao Ming Ang
Summary: A novel high entropy alloy-medium entropy alloy composite coating was designed using a CALPHAD approach, which showed potential for industrial applications. The experimental results demonstrated that the composite coating had higher hardness and superior wear resistance, making it promising for structural applications.
SCRIPTA MATERIALIA
(2023)