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个人信息Personal Information
教授 博士生导师
招生学科专业：
化学 -- 【招收硕士研究生】 -- 材料科学与技术学院
材料科学与工程 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
机械 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
材料与化工 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
主要任职：面向苛刻环境的材料制备与防护技术工业和信息化部重点实验室主任
其他任职：江苏省金属学会副理事长，江苏省热处理及表面改性工程技术研究中心副主任，江苏省机械工程学会材料工程专业委员会副理事长，江苏省复合材料学会常务理事
毕业院校：南京航空航天大学
学历：南京航空航天大学
学位：工学博士学位
所在单位：材料科学与技术学院
办公地点：江宁校区东区D10-材料楼A511
联系方式：13951818597
电子邮箱：
TRIBOLOGICAL BEHAVIOR OF Al-Cr COATING OBTAINED BY DGPSM AND IIP COMPOSITE TECHNOLOGY
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所属单位：材料科学与技术学院
发表刊物：SURFACE REVIEW AND LETTERS
关键字：Double glow plasma surface metallurgy ion implantation Al-Cr composite alloyed layer wear resistance
摘要：An Al-Cr composite alloyed layer composed of an Al enriched layer, a Cr enriched layer and a transition layer from the surface to the bulk along the cross-section was deposited on a 45# steel substrate by composite technology, where Cr was deposited using double glow plasma surface metallurgy (DGPSM), and Al was then implanted by ion implantation (IIP) to achieve higher micro-hardness and excellent abrasive resistance. The composite alloyed layer is approximately 5 mu m, and as metallurgical adherence to the substrate. The phases are Al8Cr5, Fe2AlCr, Cr23C6, Cr (Al) and Fe (Cr, Al) solid solution. The wear resistance tests were performed under various rotational speed (i.e. 280, 560 and 840r/min) with silicon nitride balls as the counterface material at ambient temperature. The Al-Cr composite alloyed layer exhibits excellent wear resistance when the speed is 280r/min with a friction coefficient as low as 0.3, which is attributed to Al8Cr5 in the Al implanted layer that withstands abrasive wear. Better wear resistance (friction coefficient: 0.254) at 560r/min is resulted from the formation of a high micro-hardness zone, and an oxidation layer with lubrication capacity. In addition, the composite alloyed layer suffers severe oxidative wear and adhesive wear at 840r/min due to the increment of the frictional heating. When compared to the 45# steel substrate, the enhanced wear resistance of the Al-Cr composite alloyed layer demonstrates the viable method developed in this work.
ISSN号：0218-625X
是否译文：否
发表时间：2017-10-01
合写作者：Luo, Xixi,张平则,周克印,岳晨,Tao, Xuewei
通讯作者：Luo, Xixi,姚正军