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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：
MICROSTRUCTURE AND OXIDATION RESISTANCE OF Fe-Al-Nb ALLOYED LAYER ON 45 STEEL BY PLASMA SURFACE MODIFICATION
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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：Fe-Al coating Fe-Al-Nb alloyed layer high-temperature oxidation plasma surface modification
摘要：The Fe-Al-Nb alloyed layer was coated on 45 steel by the plasma niobiumizing modification to improve the microstructure and oxidation resistance of Fe-Al coating prepared by hot-dipping aluminum. The alloyed layer growth followed the typical Volmer-Weber mode with the modification time growing (2-4 h), which was carried out at 1073K and pressure of 40 Pa. Its surface morphology was compact without any defects, meanwhile, there was a transition layer between the Fe-Al-Nb alloyed layer and the substrate. The mass increase of Fe-Al-Nb specimen after oxidizing at 873, 973 and 1073K for 100 h was less than that of the Fe-Al and untreated 45 steel specimen, it owed to the diffusing fully of the Fe, Al and Nb atoms during high-temperature oxidation, forming a compact protective Nb, Al-rich oxidation film on the surface of the Fe-Al-Nb alloyed layer, and the occurrence of the internal oxidation phenomenon between the loose iron oxides layer and the Fe-Al-Nb alloyed layer at 973K for 100 h protected the internal coating from further penetration of oxygen. In addition, the Fe2Nb precipitates and Nb carbides dispersed through the alloyed layer, which were good for improving the strength, creep rupture resistance and inhibiting the Kendal effect at high-temperature.
ISSN号：0218-625X
是否译文：否
发表时间：2017-04-01
合写作者：Zhang, Zelei
通讯作者：姚正军