Article
Nanoscience & Nanotechnology
Tian Liu, Xiaonong Cheng, Hengnan Ding, Leli Chen, Qian Wang, Di Zhang, Rui Luo
Summary: The effect of strain on the microtexture and recrystallization of the GH4169 alloy was investigated using EBSD. The strain gradually increases from the edge to the center of the compressed sample, leading to increased recrystallization. The generation of new sigma 3 boundaries within the DRX grains affects the deformation microstructure, resulting in a decrease in the overall maximum intensity of the microtexture.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
Hongyu Li, Wei Feng, Wuhao Zhuang, Lin Hua
Summary: In this study, thermal hot compression tests were conducted on a Ni-Cr-Co-based superalloy using a Gleeble-3500 thermal simulator. The results showed that both discontinuous dynamic recrystallization (DDRX) and continuous dynamic recrystallization (CDRX) occurred simultaneously during hot deformation. The proposed models accurately described the work-hardening and dynamic softening behaviors, as well as the evolution of dynamic recrystallization grain size in the Ni-Cr-Co-based superalloy.
Editorial Material
Materials Science, Multidisciplinary
Chang-an Li, Guoliang Qin, Hao Wang, Peihao Geng
Summary: This paper conducted hot compression experiments to analyze the deformation behavior and dynamic recrystallization of FGH96 at high temperature and strain rate conditions. Two strain modified viscoplastic constitutive models were established and proven to accurately reflect the deformation behavior and suitable for numerical simulation of IFW.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Emil Eriksson, Fabian Hanning, Joel Andersson, Magnus Hornqvist Colliander
Summary: Understanding the microstructural behaviour of materials during thermomechanical processing is crucial for achieving optimal mechanical properties. We investigated the dynamic recrystallization (DRX) behaviour of Ni-base superalloy Haynes 282 during hot compression and observed the formation of small DRX grains before the peak strain. The DRX process accelerated significantly above a certain strain, and the material was fully recrystallized at a higher strain. Contrary to common assumptions, many DRX grains contained dislocation substructures, even at small strains.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Dahai Liu, Jingdong Chen, Haorui Chai, Yihang Jiang, Zhi Li, Wenqing Qiu, Zhenghua Guo
Summary: Cobalt-based superalloys exhibit good performance in environments where nickel-based superalloys are not suitable. Research focused on the metadynamic recrystallization (MDRX) behavior of GH5188 superalloy using two-stage hot compression tests, establishing kinetic and grain size models to describe the process. Factors affecting MDRX microstructure evolution such as holding time, temperature, strain rate, and intervals time were analyzed, showing an increase in MDRX fraction and grain size with increasing parameters.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
N. T. B. N. Koundinya, Abhinav Kumar Karnati, Abhijith Sahadevan, S. V. S. Narayana Murty, Ravi Sankar Kottada
Summary: This study investigates the role of carbides in the dynamic recrystallization and post-dynamic recrystallization of a Ni-base superalloy. It is found that carbides inhibit the kinetics of recrystallization in the initial stage, but have limited inhibitory effect on the growth of recrystallized grains at higher strains.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Guangdi Zhao, Ximin Zang, Yuan Jing, Nan Lu, Jinjiang Wu
Summary: The presence of more MC carbides in the high-carbon alloy led to finer initial grains and promoted dynamic recrystallization, which reduced deformation resistance and cracking.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
Qiu-Mei Yang, Yong-Cheng Lin, Jian-Zheng Guo, Chao Wang, Zi-Jian Chen, Kai-Ge Chen, Jun-Cheng Zhu
Summary: This study investigates the spheroidization behavior of the gamma' phase and the dynamic recrystallization (DRX) mechanisms of a novel HIPed powder metallurgy superalloy under different deformation conditions. The results indicate that the deformation conditions greatly influence the spheroidization behavior of the gamma' phase and DRX mechanisms.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Runze Cao, Wei Wang, Shibo Ma, Huajun Yan, Zhenkai Mu, Shuangjie Zhang
Summary: In order to analyze the thermal deformation and dynamic recrystallization behavior of 18CrNiMo7-6 steel, isothermal compression tests were conducted at different deformation temperatures and strain rates. The constitutive models based on true stress were constructed and validated, and the models considering strain effect were also compared. The results showed good accuracy of the models and revealed the recrystallization behavior and grain growth characteristics of the steel.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Chihui Liu, Hua Zhang, Qing Wang, Panzhi Wang, Jiadian Yang, Fanchao Meng, Xin Zhou, Lilong Zhu, Shangzhou Zhang, Liang Jiang
Summary: Thermal deformation behavior and microstructure evolution of GH141 alloy were efficiently studied using high-throughput double-cone gradient compression. Different compression temperatures resulted in a wide gradient equivalent strain distribution and gradient microstructure. The dynamic recrystallization mechanism shifted towards discontinuous dynamic recrystallization with increasing compression temperature.
Article
Chemistry, Physical
Huiwei Li, Xiaoli Zhuang, Song Lu, Stoichko Antonov, Longfei Li, Qiang Feng
Summary: The thermal deformation behavior and flow stress modeling of a novel CoNi-based wrought superalloy were investigated at different temperatures and strain rates, showing dynamic recrystallization occurring under all deformation conditions. Additionally, when the alloy was deformed sub-solvusly at higher temperatures and lower strain rates, the gamma' phase dissolved resulting in substantial grain growth.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Emil Eriksson, Fabian Hanning, Joel Andersson, Magnus Hoernqvist Colliander
Summary: In industrial forging, dynamic recrystallization (DRX) can further progress under static conditions, known as meta-dynamic recrystallization (mDRX), which greatly affects grain size and properties. This study investigates the mDRX evolution in Ni-based superalloy Haynes 282 during post-deformation hold times. The results show that mDRX dominates the microstructure evolution during hold time, and the kinetics of mDRX is influenced by the prior strain.
Article
Chemistry, Physical
Jiebo Lu, Wenjie Xin, Tengfei Ma, Xiaohong Wang, Duo Dong, Dongdong Zhu
Summary: The microstructural evolution and dynamic recrystallization behavior of a dual-phase medium entropy alloy were studied under different temperature and strain rate conditions. The initial dual-phase microstructures were characterized and the deformation activation energy was calculated. The appropriate hot deformation parameters were determined based on the hot processing map and deformation microstructure. It was also found that the continuity of dynamic recrystallization depended on the deformation temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Xiao -Min Chen, Liao -Yuan Nie, Hong -Wei Hu, Y. C. Lin, Yan-Xing Liu, Zi-Lang Wu, Xiao -Jie Zhou, Jian Zhang, Xian-zheng Lu
Summary: The hot deformation characteristics of Inconel 625 superalloy were analyzed through isothermal compressive tests at a wide range of temperatures and strain rates. The study revealed the work-hardening and dynamic softening features of the material, as well as the effects of deformation parameters. Additionally, the microstructure of the alloy showed fine and uniform grains under certain conditions. Three different constitutive models were developed to predict the thermal deformation features, and their predictive abilities were assessed.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Jia-Li Pang, Ze-Lin Zhu, Jing-Yu Zhang, Qiang Chen, Jie Zhou, Yi Meng, Sumio Sugiyama
Summary: In this study, a series of thermal compression tests were conducted to investigate the effect of different strain rates and temperatures on a Cr-Mn-Si-Ni alloyed naval steel. Strain-compensated Arrhenius-type constitutive (SCAC) and backpropagation artificial neural network (BP-ANN) models with optimized structure were established. The optimized BP-ANN model demonstrated improved predictive performance compared to the SCAC model. Additionally, electron backscatter diffraction analysis was used to study the microstructural evolution behavior of the naval steel during thermoplastic deformation, revealing that dynamic recrystallization was promoted by higher forming temperatures and lower strain rates.
Article
Materials Science, Multidisciplinary
Peng Zhang, Han Wang, ShengJie Yao, ChuanJie Wang, Qiang Zhu, Gang Chen
Summary: The Cu-3 wt%Ag-0.5 wt%Zr materials were rolled using the same process at room and cryogenic temperatures, showing differences in material microstructure evolution and texture. The stable behavior of cryogenically rolled sheets differed from that of room temperature samples.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Engineering, Manufacturing
Chuanjie Wang, Shaoxi Xue, Gang Chen, Lingjiang Cui, Peng Zhang
JOURNAL OF MANUFACTURING PROCESSES
(2020)
Article
Materials Science, Multidisciplinary
Qiang Zhu, Gang Chen, Chuanjie Wang, Lukuan Cheng, Heyong Qin, Peng Zhang
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2020)
Article
Chemistry, Physical
Chuanjie Wang, Haiyang Wang, Gang Chen, Qiang Zhu, Lingjiang Cui, Peng Zhang, Anping Dong
Review
Chemistry, Multidisciplinary
Jie Xu, Xinwei Wang, Chuanjie Wang, Lin Yuan, Wanji Chen, Jianxing Bao, Qian Su, Zhenhai Xu, Chunju Wang, Zhenlong Wang, Debin Shan, Bin Guo
Summary: With the rapid development of MEMS, micro/nanoscale fabrication of 3D metallic structures with complex structures and multifunctions is becoming increasingly important. Micro/nanoforming, as a promising micromanufacturing approach, has advantages but is far from being well-established, and is currently a hot research topic.
ADVANCED MATERIALS
(2021)
Article
Physics, Condensed Matter
Hui Guo, LinFu Zhang, Qiang Zhu, ChuanJie Wang, Gang Chen, Peng Zhang
Summary: The study on coalescence and melting process of Ag and Cu nanoparticles using molecular dynamics found that twin boundaries or stacking faults and atomic diffusion play key roles. Initially, Cu and Ag nanoparticles quickly contact each other, forming stable interfaces with potential faults or boundaries as temperature rises. At a critical temperature, atoms diffuse strongly to ultimately melt into a liquid sphere. The coalescence point and melting temperature increase with cluster diameter, with nanoparticle arrangement affecting initial interface stability and subsequent behavior.
ADVANCES IN CONDENSED MATTER PHYSICS
(2021)
Article
Materials Science, Ceramics
Kang Liu, Jinping Sun, Zeyu Zhao, Zhuojun Zhang, Chuanjie Wang, Gang Chen, Peng Zhang
Summary: The study utilized a sintering aid (sodium carbonate) to prepare high-strength calcium silicate (CSi) scaffolds, leading to significant improvement in the mechanical properties of the scaffolds. The scaffolds with sintering aids exhibited better degradation and mineralization abilities, potentially promoting the application of 3D ink printing bioceramic scaffolds in bone defect repair.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Peng Zhang, Han Wang, ChuanJie Wang, Qiang Zhu, Gang Chen
Summary: The study found that at 77K, the strength and ductility of thin sheets of pure copper are higher, especially for samples with larger grain sizes. The results also indicated that there was a higher dislocation density and more homogeneous dislocation distribution at 77K compared to 295K. A new constitutive model was established to explain the effect of cryogenic temperature on the deformation mechanism of thin sheets of pure copper, suggesting that micro-plastic forming at cryogenic temperature could enhance the formability of copper and similar metals.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Mechanical
Chuanjie Wang, Haiyang Wang, Gang Chen, Qiang Zhu, Peng Zhang, M. W. Fu
Summary: This study develops a new damage model that successfully predicts the forming limit curve of Cu/Ni clad foils by considering size effect and deformation behavior. Experimental results show that void evolution and surface roughness have significant influences on the forming limit of clad foils.
INTERNATIONAL JOURNAL OF PLASTICITY
(2022)
Article
Chemistry, Physical
Qiang Zhu, Linfu Zhang, Chuanjie Wang, Gang Chen, Heyong Qin, Peng Zhang
Summary: Nickel-based superalloys have excellent properties as key materials for aircraft engines. Microtensile experiments were conducted to investigate the effects of the delta phase on grain orientation, surface roughness, and strain localization. The results showed that the presence of the delta phase increased the fracture misorientation and decreased surface roughness, while increasing strain localization. Plastic strain led to the growth of voids, and the rod-like and needle-like delta phases provided channels for microcrack propagation, ultimately leading to specimen fracture.
Article
Chemistry, Physical
Haiyang Wang, Chuanjie Wang, Linfu Zhang, Gang Chen, Qiang Zhu, Peng Zhang
Summary: This paper explores the strain rate sensitivity of CG Cu/Ni clad foils, showing that strength and ductility increase with strain rate, and the strain rate sensitivity is three times higher than that of CG pure Cu. The formation of edged dislocations at the interface layer contributes to improved ductility and strain rate sensitivity in the clad foils. Size effect on mechanical properties is consistently present in the quasi-static strain rate range.
Article
Materials Science, Ceramics
Kang Liu, Jinping Sun, Qiang Zhu, Xin Jin, Zhuojun Zhang, Zeyu Zhao, Gang Chen, Chuanjie Wang, Hongjiang Jiang, Peng Zhang
Summary: PCL/TCP/PEG composite scaffolds with PEG-coated TCP structure were prepared to improve the biological activity and hydrophobicity issues of PCL materials. The scaffolds exhibited good wettability, morphology, and mechanical properties, and promoted cell proliferation and osteogenic differentiation.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Manufacturing
Chuanjie Wang, Haiyang Wang, Yibin Wang, Gang Chen, Qiang Zhu, Peng Zhang
Summary: This study investigates the effects of rubber pad forming process using rigid convex and concave dies on the forming process and product quality of bipolar plates. The results show that the two forming methods exhibit opposite forming processes and have different effects on product quality. The stacking order and grain size also have an impact on the quality of the products.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Materials Science, Multidisciplinary
Kang Liu, Jinfeng Wang, Shiyao Fang, Han Wang, Yufei Bai, Zeyu Zhao, Qiang Zhu, Chuanjie Wang, Gang Chen, Hongjiang Jiang, Jinping Sun, Peng Zhang
Summary: Calcium silicate (CS) is a suitable substrate for bone tissue engineering that can release bioactive ions to promote bone regeneration. Coating the 3D printed CS scaffolds with polycaprolactone (PCL) improves the mechanical and biological properties, slowing down the degradation rate and enhancing cell survival and osteogenic differentiation.
MATERIALS & DESIGN
(2022)
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)
