A NOVEL DOUBLE-SIDE LASER WELDED THICK PLATE: MICROSTRUCTURE AND NUMERICAL PREDICTION OF TENSILE TEST

被引：0

作者：

Veeman, Dhinakaran ^{[1
]}

Vellaisamy, Murugan ^{[1
]}

Thanigainathan, Sarankumar ^{[1
]}

Browne, Micheal Agnelo ^{[1
]}

Subramaniyan, Mohan kumar ^{[1
]}

机构：

[1] HCAH India, Hyderabad 600069, India

来源：

SURFACE REVIEW AND LETTERS | 2024年

关键词：

Laser welding; finite element simulation; SS-304; microstructure; fractography; MECHANICAL-PROPERTIES; CORROSION BEHAVIOR; PENETRATION; FRACTURE; STEELS; SIZE;

D O I：

10.1142/S0218625X25500271

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The study aims to provide firsthand knowledge on finite element simulation (FES) of double-side laser welded (LW) stainless steel 304 (SS-304) thick plates used for automobile application. Double-side welding technique is an idea of achieving complete penetration with minimal heat input. The microstructural evaluation revealed the presence of dendritic growth that results in the enhancement of tensile strength (TS) for the welded sample. There is a slight increase in the delta ferrite content in weldment. The change in microstructure is due to thermal history during solidification. The TS of base metal (BM) was 542 +/- 5.1MPa whereas the welded sample exhibited strength of 554 +/- 2.3MPa. FES was successfully employed to simulate TS with error percentage less than 1.

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页数：9

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