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Effect of annealing on the microstructures and Vickers hardness at room temperature of intermetallics in Mo-Si systemYANG Haibo;LI Wei;SHAN Aidang;WU Jiansheng Key Laboratory of Ministry of Education for High Temperature Materials and Tests & Department of Material Science and Engieering, Shanghai Jiao Tong University, Shanghai 200030, China摘 要:<......
is prior to that of special carbide at high tempering is analyzed with the phase structure formation factor, S, being taken into consideration. Therefore, the laws of temper process and hardness change...Effect of Valence Electron Structure on Temper Process and Hardness of the Supersaturated Carburized Layer石巨岩College of Materials Science and Engineering,Taiyuan University of Technology摘 要:
强磁场对Cu-25%Ag合金析出相及性能的影响李贵茂1,王恩刚1,张林1,左小伟1,赫冀成1(1.辽宁省沈阳市东北大学材料电磁过程研究教育部重点实验室)摘 要:在有无磁场条件下进行了Cu-25%Ag(质量分数)合金的凝固实验,研究了强磁场对Cu-25%Ag合金凝固组织中富Cu枝晶内部Ag析出相的影响,测试了合金的硬度和电导率.发现有无磁场条件下,在不同大小的富Cu枝晶内部,Ag析出相的形态和尺寸各不相同,大尺寸富Cu枝晶内部的Ag析出相呈连续的棒状结构,小尺寸富Cu枝晶内部的Ag析出相呈非连续的颗粒状结构.另外......
,their high surface hardness and good wear properties need to be explored further.In this work,a carburized layer was formed on the surface of commercially pure zirconium by a double glow plasma...Double glow plasma carburization on zirconium to improve surface hardness and wear resistanceJian-Qing Wang,Hong-Bo Yang,Bing Zhang,Wei Xi,Ze Dong,Qin JingState Key Laboratory of Metastable Materials......
Effect of thermomechanical treatment on microstructure and hardness behavior of AZ63 magnesium alloyH. Jafari1,2,M.H. Idris1,A. Ourdjini1,G. Payganeh31. Department of Materials Engineering,Faculty... Engineering,Faculty of Mechanical Engineering, Shahid Rajaee Teacher Training University摘 要:Due to their high specific strength and low density, magnesium alloys......
that the penetration with flux is 3 times as great as the weld without flux. With activating flux, mechanical properties are stable, but the hardness of welding with flux is higher in some extent... transformation. Key words: activating flux; elements transition; hardness 活性化焊接(Activating TIG,简称A-TIG) 方法是使用特殊的活化材料焊前涂敷到被焊工件表面,在焊接工艺参数不变的情况下,与常规的TIG焊相比,增大熔深1倍以上,而且有效减小正面焊缝宽 度[1-2......
. Quenching at 1180 ℃ and three-times tempering at 560 ℃, the hardness of M2 cast high speed steel is 65~66 HRC, and impact toughness reaches 21.3 J*cm- 2. Modified M2 cast high speed steel has...Effect of RE-Al-N on Structures and Properties of M2 Cast High Speed Steel 符寒光1,蒋志强2,邢建东1,杜建铭2 (1.School of Materials Science & Engineering, Xi′an Jiaotong University, Xi′an 710049, China;2.School......
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for the appearance of peak hardness. In the Al2O3/Al-Cu composite some Cu elements will be captured by the high density dislocations in the Al-Cu alloy matrix, and these Cu elements cannot contribute... by measuring the hardness of the samples at different aging temperatures and aging time. Microstructures of the composites were observed by transmission electron microscope(TEM). The results indicate......
Effects of rolling deformation on microstructure and hardness of Ti-45Al-9Nb-0.3Y alloy张树志1,2,张长江1,2,侯赵平1,孔凡涛3,陈玉勇31. School of Materials Science and Engineering, Taiyuan University of Technology2... microscopy(SEM) in backscattered electron mode(BSE) mode, transmission electron microscopy(TEM) and nanoindentation. This high Nb containing Ti Al based alloy was rolled with 50%, 60%, 65% reduction......
