The microstructure and properties of Cr alloying layer after surface alloying treatment induced by high current pulsed electron beam

被引：23
|
作者：
Tang, Guangze [1 ]
Luo, Dian [1 ]
Tang, Shawei [1 ]
Mu, Qiang [2 ]
Wang, Liqin [3 ]
Ma, Xinxin [4 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci Engn, Harbin 150001, Peoples R China
[2] Harbin Bearing Co AECC Grp, Harbin 150001, Peoples R China
[3] Harbin Inst Technol, Sch Mechatron Engn, Harbin 150001, Peoples R China
[4] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 714卷
基金：
国家高技术研究发展计划(863计划);
关键词：
Surface alloying; High current pulsed electron beam; Corrosion resistance; Solid solution; MARTENSITIC STAINLESS-STEEL; LOW-ENERGY; CORROSION-RESISTANCE; PHASE-TRANSFORMATIONS; WEAR-RESISTANCE; M50; STEEL; D2; IRRADIATION; EVOLUTION; NANOSTRUCTURE;
D O I：
10.1016/j.jallcom.2017.04.014
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The Cr alloying layer was introduced on the steel substrate subjected to surface alloying treatment by combination of magnetron sputtering and high current pulsed electron beam. The microstructure of the Cr alloying layer was studied using SEM, XRD and TEM. The thickness of the remelted layer was about 5 mm after surface alloying treatment. The 2 mm thick Cr-rich layer containing Fe-Cr solid solution and a small amount of amorphous phase was observed at the top of remelted layer after irradiation. The remelted layer also contained columnar austenite grains and plate martensite. The microhardness of Cr alloying layer only dropped slightly comparing with the original steel substrate. However, the corrosion resistance of the specimen after surface alloying treatment was significantly improved and the Fe-Cr solid solution was believed to contribute to the formation of passive film to increase the corrosion resistance. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：96 / 103
页数：8
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