Article
Engineering, Mechanical
Abhishek Kumar Singh, Lalit Kaushik, Saurabh Pawar, Jaiveer Singh, Hrishikesh Das, Mounarik Mondal, Sung-Tae Hong, Shi-Hoon Choi
Summary: This study investigated the microstructure and texture of the thermomechanically affected zone (TMAZ) in friction stir processed (FSPed) CP-Ti material using electron backscatter diffraction (EBSD), finite element analysis (FEA), and polycrystal modeling. Different regions in the TMAZ exhibited distinct microstructures and textures based on their deformation history and dynamic recrystallization mechanisms. The development of the submicron grain structure in TMAZ-I involved multiple mechanisms of dynamic recrystallization (DRX). The texture in both TMAZ-I and TMAZ-II showed variations due to tension and compression twins, as well as slips in different regions.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Materials Science, Multidisciplinary
M. Paghandeh, A. Zarei-Hanzaki, H. R. Abedi, Y. Vahidshad, J. Kawalko, D. Dietrich, T. Lampke
Summary: This study investigated the warm temperature deformation behavior of the Ti-6Al-4V alloy through tension and compression tests. It was found that the material exhibited low compressive formability and premature fracture at lower temperatures, while showing increased work hardening capacity in tensile mode. The higher activity of pyramidal slip systems in tensile mode contributed to substructure development and higher strain accommodation.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Nanoscience & Nanotechnology
Ke Hua, Yongliang Zhang, Yanlin Tong, Fan Zhang, Hongchao Kou, Xiaolin Li, Haifeng Wang, Jinshan Li
Summary: An optimized thermomechanical processing method was used to treat β titanium alloy, resulting in a fine equiaxed microstructure with a mean size of 160 nm and significantly enhanced yield strength.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Energy & Fuels
Pranjali Sharma, Hafijul Hossain Sardar, Swati Neogi
Summary: This study focuses on the failure of Type-4 composite cylinders caused by thermal degradation. Finite element analysis is used to predict the ultimate hoop stress of composite rings, and models for various tests are developed and experimentally validated.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Gang Liu, Cao Wang, Zhenhua Han, Xinlei Miao, Xinwang Liu, Xin Yang, Zhijun Wang, Guojun Zhang
Summary: The high entropy alloy exhibited different tensile properties at different temperatures, with the serration effect becoming more pronounced as the tensile temperature increased. Transmission electron microscopy analysis revealed that the simultaneous effects of twinning boundary and high density dislocations promoted the dynamic precipitation of Heusler phase.
Article
Automation & Control Systems
Xulin Wang, Zhenyuan Jia, Jianwei Ma, Dongxu Han, Xiaoqian Qi, Chuanheng Gui, Wei Liu
Summary: This paper proposes an effective method to predict the radial heat-affected zone (RHAZ) width in nanosecond pulsed laser ablation (NPLA). By establishing a dynamic temperature distribution model and introducing a correction factor, the prediction accuracy of the RHAZ width is improved. The study method has significant engineering practical value for the design and high-precision preparation of high-density functional patterns.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Guanghua Xu, Jieyan Tao, Yuqin Zhang, Junsheng Wang, Yehua Jiang
Summary: To achieve low-cost titanium alloys with improved strength and ductility, 0.1 wt% of boron was added to the Ti-4Al-2.5V-1.5Fe alloy using titanium diboride (TiB2) as a boron source. The addition of borides greatly influenced the material parameters and improved the spheroidization and recrystallization of the alloy. This resulted in a fine grain structure and improved processibility, mitigating flow localization and enhancing the mechanical properties.
MATERIALS & DESIGN
(2023)
Article
Materials Science, Multidisciplinary
Chao Voon Samuel Lim, Yang Liu, Chen Ding, Aijun Huang
Summary: This study investigates the effect of strain levels and strain rate under supra-transus deformation temperature on beta annealing of Beta Ti alloy, aiming to obtain refined and homogeneous microstructure. It shows that deformation conditions affect dynamic recovery and recrystallization mechanisms, which further impact subsequent static recrystallization during annealing. The results provide guidance in designing TMP processes to achieve refined microstructure and more homogeneous beta microstructure in Beta Ti alloy processing.
Article
Crystallography
Haoyu Zhang, Shuo Zhang, Shuai Zhang, Xuejia Liu, Xiaoxi Wu, Siqian Zhang, Ge Zhou
Summary: This study investigated the high-temperature deformation behavior of the near-beta titanium alloy Ti-3Al-6Cr-5V-5Mo and obtained constitutive models and processing maps. The experimental results showed that the alloy had the maximum number of dynamic recrystallization grains and the minimum average grain size at 790 degrees C/0.001 s(-1) condition.
Article
Materials Science, Multidisciplinary
Bruna Callegari, Joao Pedro Oliveira, Rodrigo Santiago Coelho, Pedro Paiva Brito, Norbert Schell, Flavio Soldera, Frank Mueklich, Haroldo Cavalcanti Pinto
Summary: Microstructural and crystallographic changes of a Ti-6Al-4V alloy during thermomechanical processing in beta and alpha+beta phase fields were investigated. It was found that deformation in the single beta field leads to an increase in retained beta phase content and a decrease in martensitic c/a ratio with reduced strain rate. In the alpha+beta field, texture weakening and randomization were observed, with globularization taking place through dynamic recrystallization, boundary splitting, and shearing. The decrease in strain rate in the alpha+beta field results in larger globularized grain size and a closer c/a ratio of alpha phase to the ideal value for titanium.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Hui Zhao, Chong Yang, Dongxu Guo, Lu Wu, Jianjun Mao, Rongjian Pan, Jiantao Qin, Baodong Shi
Summary: This study investigates the thermomechanical coupling behavior of zirconium alloy used as fuel cladding material in nuclear reactors, focusing on the effects of different alloying elements and establishing irradiation growth and thermal conductivity models. The results show that the stress and displacement of the cladding are sensitive to alloying elements due to irradiated growth.
APPLIED SCIENCES-BASEL
(2021)
Article
Automation & Control Systems
Paulo Henrique Grossi Dornelas, Joao da Cruz Payao Filho, Victor Hugo Pereira Moraes e Oliveira, Diogo de Oliveira Moraes, Petronio Zumpano Junior
Summary: The study investigated the impact of high interpass temperatures on the heat-affected zone of API 5L X70 pipe welded joints, showing that an increase in interpass temperature can decrease the hardness of CGHAZ but not affect ICCGHAZ. The impact energies obtained for all interpass temperatures exceeded the standard requirement, indicating that increasing the interpass temperature is an effective method to reduce welding costs.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Metallurgy & Metallurgical Engineering
L. Bolzoni, M. Jia, F. Yang
Summary: In this study, the effect of thermomechanical deformation temperature on the properties of the Ti-5Al-2.5Fe alloy produced from elemental powders was investigated. The research also analyzed the impact of microstructure modification through heat treatments on the properties of forged billets. The study demonstrated that powder forging can be successfully used to manufacture alpha+beta Ti alloys, with forging temperature significantly influencing the material's mechanical behavior, as lower temperatures result in stronger but less ductile material. Post-processing via solution treatment plus aging generally improves the Ti-5Al-2.5Fe alloy's mechanical properties, especially in terms of ductility, without compromising strength.
Article
Materials Science, Multidisciplinary
Marcio Sangali, Victor C. Opini, Alberto Z. Fatichi, Mariana G. Mello, Leonardo Fanton, Rubens Caram, Alessandra Cremasco
Summary: This study investigates the effects of V replacement with Nb on the microstructure and properties of Ti-5553 and Ti-12553 alloys after aging heat treatment. It was found that the microstructure consisted of precipitates in a b matrix, with larger precipitates at a faster heating rate. The coarsening microstructure resulted in decreased mechanical strength but improved ductility. The replacement of V with Nb and the resulting microstructure did not affect the corrosion resistance of the samples.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Mechanical
Abhishek Kumar Singh, Lalit Kaushik, Jaiveer Singh, Hrishikesh Das, Mounarik Mondal, Sung-Tae Hong, Shi-Hoon Choi
Summary: The microstructure, texture, and deformation history of friction-stir-processed commercially pure titanium were investigated. It was found that a equiaxed submicron grain microstructure developed in the stir zone, and the texture evolution was highly dependent on the thermo-mechanical history. Prismatic and pyramidal slip systems and compression twinning were found to be the dominant deformation modes in the stir zone.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Materials Science, Coatings & Films
Cameron Barr, Shi Da Sun, Mark Easton, Nicholas Orchowski, Neil Matthews, Milan Brandt
SURFACE & COATINGS TECHNOLOGY
(2020)
Article
Materials Science, Coatings & Films
Peter Richardson, Dylan Cuskelly, Milan Brandt, Erich Kisi
SURFACE & COATINGS TECHNOLOGY
(2020)
Article
Multidisciplinary Sciences
C. J. Todaro, M. A. Easton, D. Qiu, D. Zhang, M. J. Bermingham, E. W. Lui, M. Brandt, D. H. StJohn, M. Qian
NATURE COMMUNICATIONS
(2020)
Article
Automation & Control Systems
Tobias Maconachie, Rance Tino, Bill Lozanovski, Marcus Watson, Alistair Jones, Chrysoula Pandelidi, Ahmad Alghamdi, Abduladheem Almalki, David Downing, Milan Brandt, Martin Leary
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2020)
Article
Automation & Control Systems
Ahmad Alghamdi, Tobias Maconachie, David Downing, Milan Brandt, Qian Ma, Martin Leary
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2020)
Article
Nanoscience & Nanotechnology
Tobias Maconachie, Martin Leary, Jianjun Zhang, Alexander Medvedev, Avik Sarker, Dong Ruan, Guoxing Lu, Omar Faruque, Milan Brandt
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2020)
Article
Materials Science, Multidisciplinary
Shi D. Sun, Daniel Fabijanic, Murugesan Annasamy, Santiago Corujeira Gallo, Ian Fordyce, Martin Leary, Mark Easton, Milan Brandt
JOURNAL OF LASER APPLICATIONS
(2020)
Article
Materials Science, Multidisciplinary
David Downing, Alistair Jones, Milan Brandt, Martin Leary
Summary: The study found that under uniaxial loading, loads predominantly distribute within helical substructures of the solid-surface gyroid, and the mechanical response can be tuned by adjusting the thickness of the load-carrying helical regions. This novel discovery enables more efficient use of material distribution.
MATERIALS & DESIGN
(2021)
Article
Engineering, Manufacturing
C. J. Todaro, M. A. Easton, D. Qiu, M. Brandt, D. H. StJohn, M. Qian
Summary: The study reveals that the use of high-intensity ultrasound can enhance the formation of fine equiaxed grains during the additive manufacturing of stainless steel, providing new opportunities for controlling grain structure in metal products fabricated by 3D printing.
ADDITIVE MANUFACTURING
(2021)
Article
Materials Science, Coatings & Films
Peter Richardson, Dylan Cuskelly, Milan Brandt, Erich Kisi
Summary: Low-purity laser clad MAX phase coatings were annealed at 1350 degrees C to improve Ti2AlC purity, resulting in the formation of a pure Ti2AlC layer and seven microstructurally unique sub-layers. The coatings exhibited kinetically trapped phases with potential advantages for use in extreme environments.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Rance Tino, Adam Yeo, Milan Brandt, Martin Leary, Tomas Kron
Summary: The study proposes a new method for 3D printing bone-equivalent materials with adjustable density ranges, suitable for imaging in radiotherapy. Results demonstrate successful emulation of bone-like Hounsfield Unit values with the proposed method.
MATERIALS & DESIGN
(2021)
Article
Engineering, Mechanical
Cameron Barr, Rizwan Abdul Rahman Rashid, Shi Da Sun, Mark Easton, Suresh Palanisamy, Nicholas Orchowski, Neil Matthews, Kevin Walker, Milan Brandt
Summary: Laser directed energy deposition repair offers significant advantages over current grind-out repair methods for 300 M steel, with samples containing 40% deposit exhibiting equivalent low cycle fatigue behavior to unfilled 10% grind-outs, although with reduced tensile strength. High cycle fatigue is linked to crack initiation at defects or locally softened regions due to in-situ tempering. Deposition strategy influences the extent of tempering, but both layer and track delay strategies result in equally softened regions, leading to similar fatigue limits regardless of fill depth. Layer delay specimens perform better overall due to more uniform tempering, preventing concentrated crack growth and premature failure.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Materials Science, Multidisciplinary
Guangxian Li, Rizwan Abdul Rahman Rashid, Songlin Ding, Shoujin Sun, Suresh Palanisamy
Summary: This study investigates the machinability of titanium components fabricated using additive manufacturing compared to conventional wrought methodologies. The results show that the same cutting tools used for machining wrought titanium components can be used for selective laser melted (SLMed) parts during finish-machining operations. Cutting forces in SLMed workpieces can be up to 70% higher than those in wrought counterparts. Tool-wear analysis reveals larger tool-workpiece engagement area on the tool rake face in machining wrought parts, with adhesion and attrition being the dominant wear mechanisms.
Article
Chemistry, Physical
Michael Rasch, Dominic Bartels, Shoujin Sun, Michael Schmidt
Summary: This study examines the influence of different laser beam profiles and parameter sets on the microstructure and microhardness of materials. It is found that the local material properties can be customized by adjusting the parameters.
Article
Engineering, Biomedical
Dave Hill, Tom Williamson, Chow Yin Lai, Martin Leary, Milan Brandt, Peter Choong
Summary: This study describes an automated approach for generating conformal bone tumor resection plans. The method optimizes the resection geometry, defined by the convex hull of the tumor, to minimize the volume of healthy bone collaterally resected with the tumor. The results show significant improvements compared to manual methods in reducing the collateral resection of healthy bone.
INTERNATIONAL JOURNAL OF COMPUTER ASSISTED RADIOLOGY AND SURGERY
(2023)
