Microstructure and mechanical properties of electron beam-welded AISI 409M-grade ferritic stainless steel

被引：0
作者：
A. K. Lakshminarayanan
V. Balasubramanian
G. Madhusudhan Reddy
机构：
[1] Annamalai University,Centre for Materials Joining & Research (CEMAJOR), Department of Manufacturing Engineering
[2] Metal Joining Group,undefined
[3] Defence Metallurgical Research Laboratory (DMRL),undefined
来源：
The International Journal of Advanced Manufacturing Technology | 2011年 / 55卷
关键词：
Electron beam welding; Ferritic stainless steel; Tensile property; Impact property;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This paper deals with the microstructure and mechanical characterization of electron beam-welded AISI 409M-grade ferritic stainless steel joints. Single-pass autogenous welds free of volumetric defects were produced at a welding speed of 1,000 mm/min. The joints were subjected to optical microscopy, scanning electron fractography, microhardness, transverse and longitudinal tensile, bend and charpy impact toughness testing. The coarse ferrite grains in the base metal were changed into fine equiaxed axial grains and columnar grains as a result of characteristic rapid solidification of electron beam welds. Tensile testing indicates overmatching of the weld metal relative to the base metal. The joints exhibited acceptable impact toughness and bend strength properties.
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页码：153 / 162
页数：9
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