Study on mechanical properties of austenitic stainless steel depending on heat input at laser welding

被引：2

作者：

Jung, Sung-Min ^{[1
,2
]}

Park, In-Duck ^{[1
]}

Lee, Kwang-Hyeon ^{[1
]}

Suh, Jeong ^{[1
]}

Kim, Gong-Young ^{[2
]}

Nam, Ki-Woo ^{[3
]}

机构：

[1] Korea Inst Machinery & Mat, Busan 46744, South Korea

[2] Pukyong Natl Univ, Grad Sch, Dept Mat Sci & Engn, Busan 48513, South Korea

[3] Pukyong Natl Univ, Dept Mat Sci & Engn, Busan 48513, South Korea

来源：

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2020年 / 34卷 / 01期

关键词：

High power laser; Laser welding; Austenitic stainless steel; Mechanical properties; Heat input; HIGH-BRIGHTNESS; OPTIMIZATION;

D O I：

10.1007/s12206-019-1211-3

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The austenitic stainless steels used in various industrial fields require low heat input for welding. Laser welding is an excellent welding method in this respect. This study investigates the effect of laser welding speed on the mechanical properties at welding speed of 1.0, 1.5 and 2.0 m/min, using STS304L of austenitic stainless steel. The microstructures of fusion zone (FZ) show a two phase structure consisted of austenite and delta-ferrite, and delta-ferrite in the fusion zone tend to decrease with increase of welding speed. Meanwhile, the mechanical properties were excellent at the welding speed of 1.5 m/min for tensile, bending and impact tests.

引用

页码：117 / 126

页数：10

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