Microstructure and properties of a novel wear- and corrosion-resistant stainless steel fabricated by laser melting deposition

被引：17
作者：
Han, Yurou [1 ]
Zhang, Chunhua [1 ]
Cui, Xue [1 ]
Zhang, Song [1 ]
Chen, Jiang [2 ]
Dong, Shiyun [3 ]
Abdullah, Adil Othman [4 ]
机构：
[1] Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China
[2] Shenyang Dalu Laser Technol Co Ltd, Shenyang 110136, Liaoning, Peoples R China
[3] Army Acad Armored Forces, Nat Key Lab Remfg, Beijing 100072, Peoples R China
[4] China Med Univ, Sch & Hosp Stomatol, Stomatol Res Ctr, Shenyang 110002, Liaoning, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH | 2020年 / 35卷 / 15期
关键词：
laser melting deposition; stainless steel; microhardness; wear resistance; corrosion resistance; MECHANICAL-PROPERTIES; NI CONTENT; ALLOY; BEHAVIOR; 304-STAINLESS-STEEL; TEMPERATURE; EVOLUTION; MODEL; CR;
D O I：
10.1557/jmr.2020.70
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The study investigated novel wear and corrosion resistance of stainless steel and 316 stainless steel samples which were successfully prepared by laser melting deposition. Phase composition, microstructure, microhardness, wear resistance, and electrochemical corrosion resistance were studied. The experimental results showed that novel stainless steel was mainly composed of alpha-Fe and a few carbide phase (Cr, Fe)(7)C-3. The microhardness of novel stainless steel was about 2.7 times greater than 316 stainless steel. Meanwhile, the specific wear rate of novel stainless steel and 316 stainless steel was 2.63 x 10(-5) mm(3)/N m and 1.63 x 10(-4) mm(3)/N m, respectively. The wear volume of 316 stainless steel was 6.19 times greater than novel stainless steel. The corrosion current and the corrosion potential of novel stainless steel and 316 stainless steel were 1.02 x 10(-7) A/cm(2) and 1.5 x 10(-7) A/cm(2), and -138.8 mV, -135.9 mV, respectively, in 3.5 wt% NaCl solution. Therefore, both microhardness and wear resistance of novel stainless steel were greatly improved, with high corrosion resistance.
引用
收藏
页码：2006 / 2015
页数：10
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