Article
Nanoscience & Nanotechnology
Jinxiong Hou, Junwei Qiao, Junhe Lian, Peter K. Liaw
Summary: The study reveals the complex relationship among microstructures and mechanical behaviors of Al0.1CoCrFeNi high-entropy alloys after cold rolling and annealing. Cold rolling induces grain coarsening and formation of lamellar slip bands, while facilitating texture evolution and novel strength anisotropy. However, the overall strength is more influenced by dynamic grain refinement rather than increased dislocation density.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Mechanical
Xinde Huang, Yunchang Xin, Yu Cao, Wei Li, Guangjie Huang, Xi Zhao, Qing Liu, Peidong Wu
Summary: The study investigated the texture evolution of a Mg-Zn-Ca plate during cold rolling and subsequent annealing. It was found that basal slip was the main deformation mode and prismatic slip preserved the TD-split texture. Pyramidal slip caused the widening of the basal texture. Grain nucleation occurred at grain boundaries, deformation twins, and near precipitates, with minimal texture change.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Chemistry, Physical
Doina Raducanu, Anna Nocivin, Vasile Danut Cojocaru, Nicolae Serban, Nicoleta Zarnescu-Ivan, Raluca Elena Irimescu, Bogdan Mihai Galbinasu
Summary: The microstructural characteristic evolution during thermomechanical processing of Ti-29Nb-9Ta-10Zr alloy was investigated. The alloy underwent multiple rolling processes, and the microstructural evolution occurred with increasing thickness reduction. The experimental results showed that finer grain size could be achieved by adjusting the heat treatment conditions. Two phases were observed through X-ray diffraction and SEM techniques, and the parameters and dimensions of the crystallites, as well as the micro-deformations at the crystalline network level, were determined. The β-Ti phase underwent refinement during the rolling processes, resulting in ultrafine/nano grain size, but its growth rate was slow during recrystallization and aging treatments.
Article
Chemistry, Physical
T. Nakata, C. Xu, L. Geng, S. Kamado
Summary: This paper reports the application of cold-sample rolling (CSR) processing in a Mg-6Al-1Zn alloy sheet, which resulted in a high fraction of double twins and a substantial texture-weakening effect. Compared to high-temperature rolling (HTR) processing, CSR processing induced a relatively higher texture-weakening effect. The results indicate that twinning-mediated static recrystallization is essential for texture weakening in Al-concentrated Mg-alloy sheets.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Physical
Aman Gupta, Rajesh Khatirkar, Jaiveer Singh
Summary: This study reviews the microstructure and texture evolution of near beta, meta-stable beta, and stable beta-Ti alloys during plastic deformation and annealing treatment. Factors such as shear bands, martensite, dislocations, and precipitation significantly affect mechanical properties, while the deformation process influences microstructure and texture evolution. The activation of deformation mechanisms and presence of certain phases impact the ductility and strength of beta-Ti alloys, demonstrating the complexity of their mechanical behavior.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Lichao Li, Byeong-Chan Suh, Joung-Sik Suh, Chunjoong Kim, Yohan Go, Young Min Kim
Summary: In this study, the static recrystallization behavior and basal texture change of the cold-rolled AZXW1100 alloy during annealing were investigated. Highly deformed shear bands were observed in the cold-rolled alloy sheet, which caused rapid recrystallization at the beginning of annealing. The recrystallized grains nucleated in the shear bands guided the overall recrystallization behavior and led to the formation of a diamond-like or TD-split texture.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Gang Chen, Qiang Zhu, ShuRui Chen, ShengJie Yao, Han Wang, Lin Zhao, Peng Zhang, ChuanJie Wang
Summary: This paper investigates the textures, microstructures, and plastic deformation behaviors of equiatomic FeCoNiCr alloys treated at various annealing temperatures. The study reveals a remarkable recrystallization between 600°C-800°C. With annealing temperature increase, the main textures weaken gradually, while the content of random texture increases.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Jing Xu, Bo Guan, Rui Fu, Yang Wu, Qiang Hu, Jin Zou, Guojie Huang, Changjian Yan
Summary: Cu-Fe alloys have excellent mechanical and functional properties, making them highly suitable for use in electronics, transportation, and machinery industries. This study investigates the effects of rolling path, rolling temperature, and thickness reduction on the microstructure evolution, mechanical, and electrical properties of Cu-Fe alloys. The results show that thickness reduction has a significant impact on the mechanical properties of Cu-Fe alloys, while the rolling temperature and path influence the strength-ductility balance and microstructure evolution.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Toshio Ogawa, Yutaro Suzuki, Yoshitaka Adachi, Atsushi Yamaguchi, Yukihiro Matsubara
Summary: The influence of cold-rolling directions on the recrystallization texture evolution of pure iron was investigated. The results showed that different cold-rolling directions led to different texture morphologies, and new types of recrystallization textures were discovered.
Article
Nanoscience & Nanotechnology
S. Hanada, N. Masahashi, S. Semboshi, T. K. Jung
Summary: By investigating the effects of composition and cold groove-rolling on Young's modulus in beta Ti-Nb-Sn ternary alloys, low Young's modulus was successfully achieved. Different phases were observed in the alloys, and the lowest Young's modulus was mainly attributed to lattice deformation strain and texture development.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Zheda Ning, Qunshou Wang, Dong Zhao, Wenli Pei, Ming Wen
Summary: This paper studied the microstructure evolution and texture evolution of silver sputtering target after cold rolling and annealing treatment. The results showed that the annealing temperature affects the recrystallized structure, and a treatment of 600 degrees C/1 h can achieve complete recrystallization.
Article
Chemistry, Physical
Xiaopeng Liang, Qingbo Wu, Huizhong Li, RuiXin Wang, Liang Kang, Bin Liu, Li Wang
Summary: The study investigated the static recrystallization and texture evolution of the 80% cold-rolled powder metallurgy CoCrFeNiN0.07 high-entropy alloy during isothermal annealing. Results showed that with increasing annealing temperature, the grain size increased, strength decreased, and elongation increased, indicating unique recrystallization characteristics and texture evolution of the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Industrial
Olaf Engler, Kristian Knarbakk
Summary: This paper analyzes the formation of texture and earing properties in sheets of the Al-Mg alloy AA 5050A, as well as measures to improve earing properties by adapting the ratio of relevant texture components.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
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
Materials Science, Multidisciplinary
Lichao Li, Yohan Go, Joung Sik Suh, Byeong-Chan Suh, Young Min Kim
Summary: The effects of Al content on the texture evolution of Mg-xAl-1Zn-0.1Ca-0.2Y alloy sheets during hot rolling, cold rolling, and subsequent annealing were investigated. A lower Al content resulted in delayed recrystallization and changed the basal pole figure shape of the annealed sheets. The texture of the annealed sheets changed from RD-split to diamond and TD-split, affecting the Schmid factor for basal slip.
Article
Materials Science, Multidisciplinary
Vaibhav Bhavsar, Nagaraj Patil, Vinayak Pawar, Jyoti S. Jha, Rajkumar Singh
Summary: Custom 450 precipitation-hardenable martensitic stainless steel was solutionized and aged to achieve the best combination of hardness and impact toughness for cryogenic application. The aging time significantly influenced the phase transformation, hardness, and toughness of the material.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Engineering, Mechanical
Murat Demiral, Fethi Abbassi, Rajesh Khatirkar
Summary: In this study, a three-dimensional finite-element model was developed for simulating micro-cutting of single crystals. The results showed that cutting speed had limited effects on the chip formation mechanism, while temperature softening had significant effects on cutting force, chip shape, evolving strain gradients, and activation of different slip systems.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Tushar Ramdas Dandekar, Rajesh Kisni Khatirkar, Amit Kumar, Nitish Bibhanshu, Satyam Suwas
Summary: In this study, the changes in microstructure, texture, and magnetic properties during the unidirectional cold rolling of a Fe-21Cr-5Mn-1.5Ni alloy were investigated. The results showed that the thickness of the grain along the normal direction reduced more in austenite than in ferrite, and the strain was more partitioned in austenite. The saturation magnetization increased with the increase in cold rolling reduction, and the strain induced martensite (SIM) was similar to 11% after 80% cold rolling. The development of specific textures was observed in both austenite and ferrite after cold rolling, and both texture and strain played a role in the change in magnetic properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Anish Ranjan, Jyoti S. Jha, Sushil K. Mishra
Summary: Microstructure development and control in dual-phase titanium alloy are challenging and any inhomogeneity can affect mechanical properties. This study proposes a processing route to achieve bimodal microstructure and investigates its effect on fracture toughness through microstructural analysis and testing.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Materials Science, Multidisciplinary
Abhishek Kumar, Amber Shrivastava, K. Narasimhan, Sushil Mishra
Summary: Compared to the conventional sheet metal forming process, incremental sheet forming achieves higher limiting strain and increased formability. However, the higher strain level may result in non-uniform thinning and different levels of deformation in different sections of the component. This study investigates the deformation mechanism during incremental sheet metal forming by studying the microstructural and texture evolution in a truncated cone. The results show the formation of subgrains and the evolution of shear texture, indicating the presence of through thickness shear and its contribution to the higher forming limit in the process.
JOURNAL OF MATERIALS SCIENCE
(2022)
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
Materials Science, Multidisciplinary
Nidhi Gupta, Rajesh K. Khatirkar
Summary: This study investigates the effect of quenching temperature and tempering time on microstructure evolution in UNS S17400 precipitation-hardening stainless steel. The results show that there is little change in grain size with increasing quenching temperature, while the formation of various types of precipitates increases with tempering time. Lower quenching temperature results in higher reverted austenite formation.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Materials Science, Multidisciplinary
Tushar R. Dandekar, Amit Kumar, Rajesh K. Khatirkar, Deepak Kumar, Satyam Suwas
Summary: The effect of microstructure and texture on the evolution of mechanical properties during recrystallization in cold rolled UNS S32101 lean duplex stainless steel sheet was investigated. The results showed that the microstructure changed from lamellar to near globular as the annealing time increased. The crystallographic texture weakened after recrystallization, leading to a decrease in hardness and stored energy.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Engineering, Mechanical
Anish Ranjan, Amit Singh, Jyoti S. Jha, Sushil K. Mishra
Summary: The study investigated the effect of microstructure on dwell-fatigue response in Ti-6Al-4V alloy. Tensile tests and fatigue tests were conducted on samples with varying fractions of primary alpha phase. Results showed that yield and ultimate tensile strength increased with a decrease in the alpha phase fraction, while the sample with the smallest effective grain size had the highest elongation. Detailed microstructural characterization revealed that alloying element partitioning and colony sizes influenced the properties of the alloy.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Materials Science, Multidisciplinary
Diksha Mahadule, Deepak Kumar, Tushar R. Dandekar, Rajesh K. Khatirkar, Satyam Suwas
Summary: The present study investigates the hot deformation behavior of a new Ti-6Al-4Mo-1V-0.1Si alloy. Flow characteristics were studied at strain rates ranging from 0.01s(-1) to 10s(-1) and temperatures from 800 to 1050 degrees C. The flow stress decreases with increasing deformation temperature and decreasing strain rate. Flow softening occurs at lower temperatures (800-900 degrees C) due to lamellae kinking, while flat flow curve characteristics are observed at higher temperatures (950-1050 degrees C) due to a balance of dynamic recovery and recrystallization. Constitutive modeling based on the Arrhenius hyperbolic sine equation predicts the flow stress characteristics during hot deformation. The strain rate sensitivity map was created for 0.69 strain. The optimal hot deformation zone was observed at 0.01s(-1) in the temperature range of 925-1050 degrees C, and at strain rates of 1s(-1) and 5s(-1) from 900 to 975 degrees C.
JOURNAL OF MATERIALS RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Jitendra Chavhan, Tushar R. Dandekar
Summary: This study investigated the electrochemical behavior of lean duplex stainless steel (LDX2101 SS) and epoxy (EP) coated with and without graphite flakes in a seawater environment. The epoxy/graphite flakes (EGF) coating was prepared using a spin coater, and its morphology and physical properties were analyzed. The performance of EP and EGF composites as corrosion protective coatings was analyzed using electrochemical impedance spectroscopy and potentiodynamic polarization techniques. The results showed that the EGF composite exhibited excellent corrosion protection compared to bare and epoxy-coated steel.
Article
Materials Science, Multidisciplinary
Tushar R. Dandekar, K. S. Raoof Koya, Jitendra Chavhan, Rajik Shah, Rajesh K. Khatirkar
Summary: This study investigated the microstructural changes and corrosion behavior of a low molybdenum Fe-21Cr-5Mn-1.5Ni alloy after cold rolling and accelerated isothermal aging at 800℃. Scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction, and electron backscattered diffraction (EBSD) were used to analyze the changes in microstructure and precipitation. The corrosion resistance was evaluated through anodic polarization tests and electrochemical impedance spectroscopy (EIS), with the corrosion products mainly consisting of iron and chromium oxides.
Article
Multidisciplinary Sciences
Tushar R. Dandekar
Summary: The effect of weld chemistry on the microstructure and texture development during shielded metal arc welding of alloy 2507 has been studied. The study found that the weldments were mainly comprised of three zones: the base metal zone, heat affected zone, and weld metal zone. The fraction of austenite in the weld metal zone and heat affected zone decreased after welding. The study also observed different morphologies of austenite and a stronger texture for ferrite compared to austenite in the annealed base metal.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
