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快速凝固法制备过饱和CuCr合金时效析出动力学 于杰1,李强2,陈敬超1,冯晶1,周晓龙1,肖冰3 (1.昆明理工大学稀贵及有色先进材料教育部重点实验室,云南昆明,650093;2.河南理工大学,河南焦作,454000;3.西安交通大学,陕西西安,710049) 摘要:在不同时效温度下研究雾化法制备过饱和Cucr合金的时效析出动力学.通过能谱测定不同时刻的析出相体积分数,用Avrami方程...出过程的时间很短,会在材料内部迅速生成单质Cr相,很难观察到GP区. 关键词:铜合金; 相变动力学; 扩散; CuCr固溶体; 电导率; [全文内容正在添加中] ......
纳米晶CuCr合金的制备及其截流值研究 张程煜1,丁秉钧1,冯宇1 (1.西安交通大学,陕西,西安,710049) 摘要:通过高能球磨和真空热压技术制备了致密度大于98%的纳米晶CuCr合金,通过XRD,SEM和TEM研究了其显微组织和结构.结果表明,其晶粒尺寸小于50 nm.在模拟电路上研究了其真空电弧稳定性和截流值,纳米晶CuCr合金的真空电弧稳定性好于常规CuCr合金,其截流值为常规CuCr合金的17%~35%. 关键词:纳米晶CuCr; 触头材料; 截流值; [全文内容正在添加中] ......
; 文献标志码:A 文章编号:1672-7207(2020)09-2430-12 Effect of surface ultrasonic rolling processing on rolling contact fatigue performance of camshaft material..., China; 4. Weichai Power Co. Ltd., Weifang 261061, China) Abstract: To improve rolling contact fatigue resistance of a camshaft material C53 steel of valve mechanism, surface ultrasonic rolling......
of AgMeO contact materials. Key words: AgMeO contact material; temperature field; arc properties; properties of MeO; contact area of molten pool ... on the development of AgSnO2 contact material[J]. Materials Review, 2006, 20(4): 53?57. [2] 王宝珠, 王胜恩, 白惠珍, 姚 芳. 新型银?金属氧化物触头材料成分设计与制粉[J]. 河北工业大学学报, 2001, 30(3): 77?81. WANG Bao-zhu, WANG Sheng-en, BAI Hui-zhen......
Study of spent battery material leaching process LI Jin-hui(李金辉)1, 2, LI Xin-hai(李新海)1, ZHANG Yun-he(张云河)1, HU Qi-yang(胡启阳)1, WANG Zhi-xing(王志兴)1, ZHOU You-yuan(周友元)1, FU Fang-ming(符芳铭)1 1...; Abstract: The recovery of Ni, Co and Mn from spent battery material is very important to environment protection, utilization of resources and cost......
solution. Keyword: composite coating; electric contact material; diamond powder; diamond particulate reinforcement; Received: 1999-09-21 复合镀层是把一种或多种固... Fig.2 Sketch of contact resistance measurement 图3 电磨损试验原理图 Fig.3 Schematic diagram of electrical wear test 2 结果与讨论 2.1 镀层结构及其界面 2.1.1 外观 镀液中金刚石微粒浓度, 分散剂含量, 电镀时间, 电流密度, 电镀温度对复合镀层的外观色......
J. Cent. South Univ. Technol. (2010) 17: 899-905 DOI: 10.1007/s11771-010-0574-5 Effects of thickness and elastic modulus on stress condition of fatigue-resistant coating under rolling contact... difference of elastic modulus between coating and substrate exhibit excellent resistant performance of rolling contact fatigue (RCF). Key words: sprayed-coating; thickness; elastic modulus......
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Influence on Rolling Contact Fatigue Life of GCr15 Steel Treated by Plasma Immersion Ion Implantation TANG Bao-yin1,SUN Tao1,LIU Dan1,HU Li-guo2,WNAG Lang-ping1,WNAG Xiao-feng1 (1.State key lab...-on-rod testing, the rolling contact fatigue (RCF) life of GCr15 steel treated by PIII technique was studied. During the study, nitrogen plasma was generated and the implantation voltage was varied from 20......
concentration of heterogeneous material under contact loading YANG Wanyou, ZHOU Qinghua, WANG Jiaxu, YANG Yong, MIAO Qiang (School of Aeronautics and Astronautics, Sichuan University, Chengdu 610065, China... elements under contact loading. The obtained results were compared with that of a homogeneous material under the same load. Further, parametric analyses were conducted to investigate the stress......
