Microstructure and mechanical characteristics of 307Si stainless steel thin-wall parts in wire arc additive manufacturing hybrid interlayer high-speed friction

被引：7
|
作者：
Chen, Chao [1 ]
Feng, Tianting [1 ]
Sun, Guorui [1 ]
Zhang, Huijing [1 ]
机构：
[1] Northeast Forestry Univ, Coll Mech & Elect Engn, Harbin 150040, Peoples R China
来源：
MANUFACTURING LETTERS | 2022年 / 33卷
关键词：
WAAM; Stainless steel; High-speed friction; Microstructure; TENSILE;
D O I：
10.1016/j.mfglet.2022.07.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A method of wire arc additive manufacturing hybrid interlayer high-speed friction (WAAM-HSF) was pro-posed. Microstructure and mechanical characteristics of 307Si stainless steel in the WAAM and WAAM-HSF were investigated. The microstructure in the WAAM and WAAM-HSF consisted of c-austenite and residual d-ferrite. The microstructure in the WAAM-HSF was obviously refined compared with that of WAAM. The grain diameter was gradually reduced from the top region to the bottom region in two thin-walls. In the same region, the grain size in the WAAM was greater than that of WAAM-HSF. Compare to WAAM, the microhardness in the WAAM-HSF was enhanced.(c) 2022 Society of Manufacturing Engineers (SME). Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：42 / 45
页数：4
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