冯晓梅

教授 博士生导师

个人信息

招生学科专业:
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
材料与化工 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
学位:理学博士学位
性别:女
毕业院校:中国科学院物理研究所
学历:研究生(博士)毕业
所在单位:材料科学与技术学院
电子邮箱:

Fabrication of Al-Si coating on Ti-6Al-4V substrate by mechanical alloying

发表时间:2018-11-13 点击次数:
所属单位:材料科学与技术学院
发表刊物:MATERIALS AND MANUFACTURING PROCESSES
关键字:Alloying aluminum coatings high-temperature microstructure oxidation silicon titanium
摘要:Al-Si coatings were synthesized on Ti-6Al-4V alloy substrate by mechanical alloying with Al-Si powder mixture. The as-prepared coatings had composite structures. The effects of Al-Si ratio, milling duration and rotational speed on the microstructure and oxidation behavior of coating were investigated. The results showed that the continuity and the anti-oxidation properties of the coating were enhanced with the increase of Al-Si weight ratio. The thickness of the coating largely increased in the initial 5-hour milling process and decreased with further milling. A rather long-time ball milling could result in the generation of microdefects in coating, which had an adverse effect on the oxidation resistance of coating. Both the thickness and the roughness of the coating increased with the raise of rotational speed. The low rotational speed would lead to the formation of discontinuous coating. The rotational speed had a limited effect on the coating oxidation behavior. Dense, continuous and high-temperature protective Al-Si coatings could be obtained by mechanical alloying with Al-33.3 wt.% Si powder at the rotational speed ranging from 250 to 350 rpm for 5 h.
ISSN号:1042-6914
是否译文:
发表时间:2018-01-01
合写作者:Chen, Cheng,Lu, Congyang,沈以赴
通讯作者:冯晓梅
发表时间:2018-01-01

版权所有©2018- 南京航空航天大学·信息化处(信息化技术中心)

访问量: 本月访问: 今日访问量: 最后更新时间:--