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Hot Deformation Behavior and Hardness of a CoCrFeMnNi High-Entropy Alloy with High Content of CarbonYi-Tao Wang,Jian-Bo Li,Yun-Chang Xin,Xian-Hua Chen,Muhammad Rashad,Bin Liu,Yong Liu摘 要:high hardness value of 345 HV.The carbides after deformation at 1000 ℃ are mainly nano-sized M7C3......
Hardness variations during aging process of deformed W-Ni-Fe ternary alloys with high nickel-to-iron ratiosRonghua Li, Jihua Huang, Sheng Yin, and Jun ZhaoSchool of Mechanical, Electronic and Control.... The results show that there are two different kinds of aging hardness variation mechanisms (the softening mechanism and the hardening mechanism) deciding the hardness variations of the alloys. When Ni/Fe......
In-situ synthesis of TiC/Fe alloy composites with high strength and hardness by reactive sinteringJunho Lee1,Dongju Lee2,Ho Jin Ryu1,4,Soon Hyung Hong11. Department of Materials Science... insufficient carbon(C/Ti = 0.8)caused the depletion of carbon from the Fe alloy matrix,leading to a significant decrease in hardness.This study presents that the maximized hardness and superior strength......
is 1%. Key words: high energy ball milling; CeO2; nanocomposite; corrosion resistance; hardness 1 Introduction The nanocomposite is the advanced subject of the research in high performance... of Southeast University, Nanjing 210096, China Received 15 July 2007; accepted 10 September 2007 Abstract: The nano-composite powders of CeO2/Zn were prepared with high energy ball milling......
easily in austenite, the high hardness HRC63~65 can be obtained by quenching at 840~860℃. Un-dissolved carbides M6C and MC (VC) can effectively prevent the coarsening of austenitic grain, and conduce...Microstructures and Hardness of 8CrWMoV Steel with Multiple Types of Ultra Fine Carbides QI Yu-hong1,DAI Yu-mei1,LIU Yan-xia1,ZHANG Zhan-ping1,YU Tao1,MA Yong-qing1 (1.Institute of materials......
Influence of Ru on Solidification Behavior, Microstructure and Hardness of Re-free Ni-based Equiaxed Superalloys with High Cr ContentYingshuang Guan1,2,Enze Liu2,Xiurong Guan1,Zhi Zheng21. School...">The effect of Ru addition on solidification behavior, microstructure and hardness of Re-free Ni-based equiaxed superalloys with high Cr content has been investigated. With the increase of Ru, the solidus......
J. Cent. South Univ. Technol. (2010) 17: 715-719 DOI: 10.1007/s11771-010-0545-x Effects of aging parameters on hardness and electrical conductivity of Cu-Cr-Sn-Zn alloy by artificial neural network... of Cu-Cr-Sn-Zn alloy, a model of aging processes via an artificial neural network (ANN) method to map the non-linear relationship between parameters of aging process and the hardness and electrical......
between abrasives with different hardness after erosion damage was the action mechanism of abrasives and limestone. The limestone erosion process by abrasives occurs as follows. When high-speed... is the primary factor influencing the erosion effect. Figure 15 Relationship between abrasive hardness and surface energy consumption 5 Conclusions Limestone erosion experiments were conducted using a high......
multilayers. Annealing of samples in low (or high) vacuum at 400 C for 30 min led to large (or medium) enhancement of hardness, while the modulated structure was still maintained. It was found...Oxygen-penetration-induced large hardness enhancement in nanoscale Nb/Ti multilayersYuxin ZHAO and Wensheng LAI Advanced Material Laboratory, Department of Materials Science & Engineering......
Effect of Zr Addition on Resistance to High Temperature Softening and Resistivity of 6082 Al-Mg-Si Alloys SHAO Guang-jie1,SUN Bao-liang2,ZHANG Pei-pei1,LI Jing1,JIN Man1 (1.Material Science Department, Shanghai University, 200072, Shanghai, China;2.Shanghai Huizhong Automotive Manufacturing Co., Ltd. Shanghai, China) 摘要:The influence of zirconium on the resistance to high temperature softening......
