Weld bead center line shift during laser welding of austenitic stainless steels with different sulfur content

被引：17

作者：

Lienert, T. J. ^{[1
]}

Burgardt, P. ^{[1
]}

Harada, K. L. ^{[1
]}

Forsyth, R. T. ^{[1
]}

DebRoy, T. ^{[2
]}

机构：

[1] Los Alamos Natl Lab, Div Mat Sci, Los Alamos, NM 87545 USA

[2] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

来源：

SCRIPTA MATERIALIA | 2014年 / 71卷

关键词：

Laser welding; Stainless steels; Optical microscopy; Arc Welding; GAS TUNGSTEN ARC; MARANGONI FLOW;

D O I：

10.1016/j.scriptamat.2013.09.029

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The magnitude of the shift in position of the maximum depth of penetration, the center line shift (CLS), for a laser weld produced between two heats of austenitic stainless steels with large differences in S content was smaller relative to gas tungsten arc (GTA) welds made with both higher and lower heat inputs. The results of this study suggest that both surface tension driven fluid (Marangoni) flow effects and arc shift effects may contribute to the CLS in GTA welding. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.

引用

页码：37 / 40

页数：4