Article
Nanoscience & Nanotechnology
Yuankui Cao, Na Li, Yaofeng Luo, Hanchun Tang, Qian Xie, Ao Fu
Summary: A novel Ti-3Al-5V-5Mo alloy with hierarchical submicron alpha precipitates and nanoscale alpha' precipitates was developed, which exhibited an ultra-high tensile strength of 1585 MPa and moderate plasticity.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
X. N. Mu, H. M. Zhang, P. W. Chen, X. W. Cheng, L. Yang, S. Chang, H. Q. Duan, L. Liu
Summary: A laminated architecture with uniform dispersed graphene nanoflakes (GNFs) was successfully achieved in pure Ti matrix, exhibiting outstanding mechanical performance.
Article
Materials Science, Multidisciplinary
Wu Hao, Zhang Long, Yu Jiashi, Huo Wangtu, Chen Hao
Summary: Graphene oxides (GOs) were electrophoretically deposited on pure Ti foils to form in-situ TiC/Ti layered composites, which were further improved in comprehensive mechanical properties by cold rolling and annealing. The results showed that the TiC content increased with the deposition duration, and the TiC still maintained layered distribution after annealing. The annealed material achieved good strength-plasticity synergy, with a tensile strength of 568 MPa and an elongation of 27%. The strengthening and toughening mechanisms of the composites were discussed based on microstructure and fracture behavior analysis.
RARE METAL MATERIALS AND ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Qiang Wang, Zhao-Hui Zhang, Tie-Jian Su, Xing-Wang Cheng, Xian-Yu Li, Shun-Zhong Zhang, Jian-Ye He
Summary: TiB/Ti-6Al-4V composites with controllable orientation were synthesized by powder consolidation and hot extrusion, showing excellent tensile strength and elongation due to the distribution of TiB whiskers along the extrusion direction.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
P. Emadi, B. Andilab, K. Borodianskiy, C. Ravindran
Summary: The use of lightweight alloys, such as magnesium, is crucial for improving fuel efficiency and reducing emissions in automobiles, as well as increasing the range of electric vehicles. This study investigated the effects of SiC nanoparticles on the microstructure and mechanical properties of Mg-Al-Zn-Mn alloy composites. The addition of SiC resulted in significant grain refinement, more uniform phase dispersion, and improved tensile strength, making it a promising material for strengthening light alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Chengxin Lei, Yan Du, Ming Zhu, Wangtu Huo, Hao Wu, Yusheng Zhang
Summary: Novel in situ TiC/Ti composites with laminated microstructure were successfully fabricated using electrophoretic deposition and SPS method. With increasing deposition duration, the strength of the composites continuously increased and a significant improvement in ductility was achieved. Different strengthening mechanisms were discussed and quantitatively evaluated based on microscopy analysis.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Na Li, Yuankui Cao, Bin Liu, Yong Liu
Summary: Heterogeneous Ti-W metal-metal composites were designed and the effects of W particles on microstructural evolution and strengthening mechanisms were investigated. The experiment results showed that the composites formed high-density hetero-structures and exhibited a better strength-ductility combination. Additionally, a new interface stress model was proposed based on HDI stress analysis.
MATERIALS RESEARCH LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Yanfei Yin, Wenjuan Kou, Yongqing Zhao, Wangtu Huo, Weidong Zeng
Summary: The laminated Ti/Ti-50Nb composite, fabricated using spark plasma sintering, demonstrates a favorable combination of strength and ductility. The layered structure helps alleviate strain localization and maintains the total elongation of the composite equivalent to that of pure Ti. The tensile strength and stress-strain curves of the composite can be analyzed using the rule of mixture. Furthermore, microvoids initiate and grow at the interface, leading to the separation of the laminated structure into smaller units.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Fan Kuang, Yu Pan, Jinshan Zhang, Xinxin Wu, Xin Lu
Summary: In this study, a high-performance Ti-6Al-4V alloy was fabricated from TiH2 and 60Al40V powder mixtures by powder metallurgy (PM) pressureless sintering and hot extrusion. The sintering temperature and hot extrusion microstructure were investigated, and their correlation with mechanical properties was analyzed. The results showed that the dehydrogenation of the mixed powder during sintering led to a fine, fully dense microstructure. The billets sintered at 1200 degrees C exhibited a denser lamellar microstructure, which contributed to improved strength and ductility after extrusion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Tao Liu, Xiao-Yu Chong, Wei Yu, Yun-Xuan Zhou, Hai-Guang Huang, Rong-Feng Zhou, Jing Feng
Summary: This study systematically investigated the effects of 33 alloying elements on the elastic properties and solid solution strengthening (SSS) of alpha-Ti alloys using first-principles calculations. It was found that Ti35Os had the highest elastic modulus, Au, Co, and Pt showed promise in improving the ductilities of alpha-Ti solid solution alloys, and Ir, Rh, Ni, and Pt exhibited the best solid solution hardening effects. The analysis of charge densities revealed the ionic characteristics of Os and Ti in the Ti-Os bonding state. Additionally, VIII-group elements showed potential in enhancing the comprehensive mechanical properties of Ti alloys.
Article
Materials Science, Multidisciplinary
Duofei Zheng, Qingchun Zhu, Xiaoqin Zeng, Yangxin Li
Summary: The volume fraction and distribution of long-period stacking ordered (LPSO) phase have a significant impact on the strengthening of Mg alloys. The LPSO phase formed at grain boundary has a higher strengthening effect than that formed within the alpha-Mg matrix, but it compromises the solid-solution strengthening effect due to the consumption of alloying elements.
Article
Chemistry, Physical
Zhiyuan Zhang, Shuai Wang, Xianjuan Pang, Juan Liu, Lin Zhu, Zhen Feng, Sanming Du, Jun Yang, Yongzhen Zhang
Summary: This study investigates the effect of sintering temperature on the microstructures and mechanical properties of Mo2BC ceramics. The two-step sintering process is found to significantly improve the relative density, Vickers hardness, compressive strength, flexural strength, and fracture toughness of the Mo2BC ceramics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Manufacturing
Yukyeong Lee, Shuanglei Li, Eun Seong Kim, Dong Jun Lee, Jae Bok Seol, Hyokyung Sung, Hyoung Seop Kim, Taekyung Lee, Jung Seok Oh, Tae-Hyun Nam, Jung Gi Kim
Summary: Adjusting the phase transformation behavior in metallic alloys is important for controlling both the strengthening capability and the shape memory effect. This study investigates the transformation-induced plasticity in a heterogeneous microstructured Ti-Zr-Nb-Sn alloy. The results show that the design of a heterogeneous microstructure helps manipulate phase transformation in specific areas and improves the material's strength.
ADDITIVE MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Yu Zhang, Xianzhe Shi, Zhiqin Du, Yahui Yang, Xiaochuan Liu, Yulong Li, Jianghua Shen
Summary: Laser ablation of titanium alloys leads to microstructure evolution and changes in mechanical properties. In addition to the ablation area, a heat-affected zone with significant changes in microstructure and mechanical characteristics exists. Needle-like alpha, refinement grains, and high oxygen content contribute to increased microhardness, while excessive oxygen content and severe solute element segregation may result in indentation cracks. These findings provide insights for the design of defensive Ti alloys and the application of laser repair techniques.
METALS AND MATERIALS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Mojtaba Najafizadeh, Ashkan Bahadoran, Mansoor Bozorg, Behzad Sadeghi, Jiamiao Liang, Deliang Zhang
Summary: The study found that the Al content and heat treatment significantly affected the microstructures and mechanical properties of Ti-XAl-2Fe-3Cu alloys. Increasing Al content reduced the average lamellar colony size and thickness of the alloy, while heat treatment increased lamellar thickness and partitioning of Fe and Cu. Increasing Al content slightly increased the strength without changing ductility, while heat treatment slightly reduced strength but increased tensile ductility of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Biochemistry & Molecular Biology
Dong Zhu, Jinkai Li, Xiangyang Guo, Qinggang Li, Hao Wu, Lei Meng, Zongming Liu
Article
Materials Science, Multidisciplinary
Hao Wu, Jinfeng Leng, Xinying Teng, Tao Su, Qinggang Li, Jinkai Li, Junyan Wu, Daokui Xu, Yongchang Zhu
MATERIALS & DESIGN
(2019)
Article
Chemistry, Physical
Gui Lou, Shumin Xu, Xinying Teng, Zhijian Ye, Peng Jia, Hao Wu, Jinfeng Leng, Min Zuo
Article
Chemistry, Physical
Hao Wu, Shihao Zhang, Haibo Hu, Jinkai Li, Junyan Wu, Qinggang Li, Zhi Wang
Article
Materials Science, Multidisciplinary
Hao Wu, Zhuangzhuang Liu, Haibo Hu, Qinggang Li, Jinkai Li, Junyan Wu, Zhi Wang
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2019)
Article
Nanoscience & Nanotechnology
Hao Wu, Meng Huang, Qinggang Li, Junyan Wu, Jinkai Li, Zhi Wang, Guohua Fan
SCRIPTA MATERIALIA
(2019)
Article
Materials Science, Multidisciplinary
Zhuangzhuang Liu, Wei Wei, Kun Xu, Hao Wu, Tao Su, Yongchang Zhu, Zhi Wang
MATERIALS RESEARCH EXPRESS
(2019)
Article
Materials Science, Multidisciplinary
Hao Wu, Kun Xu, Qinggang Li, Junyan Wu, Zhi Wang
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
(2020)
Review
Materials Science, Multidisciplinary
Hao Wu, Guohua Fan
PROGRESS IN MATERIALS SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Hao Wu, Yunlei Xu, Zhihao Wang, Zhenhua Liu, Qinggang Li, Jinkai Li, Junyan Wu
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2020)
Article
Nanoscience & Nanotechnology
Zhuangzhuang Liu, Anqi Xia, Qinggang Li, Junyan Wu, Hao Wu, Jian Zhou, Guohua Fan, Zhi Wang
Summary: Dual-heterogeneous titanium-based composites were designed to enhance the strength-ductility synergy by utilizing compositional gradient and multi-layered hetero-structures. The study evaluated the effects of heterogeneous degree and deformation temperatures on mechanical properties, and elucidated the underlying mechanism through the disorder-to-order transition of dislocation configurations with temperature dependency.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Engineering, Mechanical
Hao Wu, Meng Huang, Xuewen Li, Yiping Xia, Zhi Wang, Guohua Fan
Summary: The study proposed a new heterogeneous laminated/gradient integrated strategy to improve material performance. Results demonstrated that the stress-bearing constituents gradually transition from Ti(Al) to TiBw/Ti layers as the temperature decreases, leading to temperature-dependent reversed fracture behavior.
INTERNATIONAL JOURNAL OF PLASTICITY
(2021)
Article
Chemistry, Physical
Hao Wang, Haoyi Niu, Hao Wu, Rengeng Li, Guohua Fan
Summary: This study investigates the plastic deformation behavior of the ring-rolled GH4169 alloy at the micro level through in situ tensile tests. The results show that the fraction of low-angle grain boundaries increases gradually during tensile deformation, and the misorientation evolution within the grain interior is severely inhomogeneous. Most of the slip system activation coincides with the Schmid law.
Review
Instruments & Instrumentation
Chao Xu, Meng Huang, Hao Wu, Kesong Miao, Guangze Tang, Honglan Xie, Tiqiao Xiao, Huijun Kang, Tongmin Wang, Lin Geng, Guohua Fan
QUANTUM BEAM SCIENCE
(2019)
Article
Materials Science, Multidisciplinary
Wen Wang, Zitang Zhang, Jiazheng Niu, Hao Wu, Sicheng Zhai, Yan Wang
MATERIALS TODAY COMMUNICATIONS
(2018)
