Thermal history in UNS S32205 duplex stainless steel friction stir welds

被引：44

作者：

Santos, T. F. A. ^{[1
,2
]}

Idagawa, H. S. ^{[1
]}

Ramirez, A. J. ^{[1
,2
]}

机构：

[1] Brazilian Nanotechnol Natl Lab LNNano, Campinas, SP, Brazil

[2] Univ Campinas Unicamp, Sch Mech Engn, Campinas, SP, Brazil

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2014年 / 19卷 / 02期

关键词：

Duplex stainless steel; Friction stir welding; Thermal history; Temperature profile; MECHANICAL-PROPERTIES; SIGMA-PHASE; MICROSTRUCTURE; HEAT; TEMPERATURE; PREDICTION; TORQUE; INPUT; FORCE; FLOW;

D O I：

10.1179/1362171813Y.0000000174

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Consolidated UNS S32205 duplex stainless steel joints welds were performed using a friction stir welding (FSW) process. An experimental set-up was used to record the thermal history of duplex stainless steel FSW joint. For points at equal distance from the weld centreline, temperature measured near the beginning of the weld was lower than that measured in the middle of the welded joint. This was attributed to a non-stationary transfer condition. FSW thermal cycle showed shorter time spent at elevated temperature compared that presented by fusion welding, indicating less propensity to detrimental second phase precipitation. To support temperature measurements with thermocouples, a three-dimensional finite element thermal model of FSW was implemented, which provided a good agreement with experimental data.

引用

页码：150 / 156

页数：7

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