Friction stir welding of high-strength steel

被引：0
作者：
Guru Prasad Dinda
A. Ramakrishnan
机构：
[1] Wayne State University,Department of Mechanical Engineering
来源：
The International Journal of Advanced Manufacturing Technology | 2019年 / 103卷
关键词：
Friction stir welding; Microstructure; High-strength steel; Martensite; Bainite;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The feasibility of friction stir welding of 12.7-mm-thick high-strength steel plates with the martensitic microstructure of the base material has been investigated. Microstructural investigation revealed a mixture of upper bainite and martensite microstructure in the stir zone. The thermo-mechanically affected zone exhibits a unique layered microstructure of fine equiaxed ferrite, bainite, and martensite. The martensitic structure of the base material transformed into the tempered martensite in the heat-affected zone. The mechanical response of the various microstructures at the different part of the welds has been correlated with a detailed microhardness investigation across the entire cross-section of the weld.
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页码：4763 / 4769
页数：6
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