Effect of rare earth elements on microstructure and oxidation behaviour in TIG weldments of AISI 316L stainless steel

被引：57

作者：

Samanta, S. K. ^{[1
]}

Mitra, S. K.

Pal, T. K.

机构：

[1] SAIL, Alloy Steels Plant, Res & Control Lab, Durgapur 713208, India

[2] Natl Inst Technol, Met & Mat Engn Dept, Durgapur 713209, India

[3] Jadavpur Univ, Dept Engn Met, Kolkata 700032, W Bengal, India

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2006年 / 430卷 / 1-2期

关键词：

rare earth metal (REM); TIG weld; oxidation; 316L stainless steel;

D O I：

10.1016/j.msea.2006.05.063

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The influence of rare earth addition in weld metal, on the microstructure and oxidation behaviour of AISI 316L stainless steel in dry air under isothermal condition at 973 K for 240 h is reported. Rare earth metal (REM) doped weld metal zone exhibits better oxidation resistance during isothermal holding as compared to base metal and undoped weld metal zone of 316L. Presence of both Cc and Nb in weld metal shows superior oxidation resistance than with Cc alone. TIG weld microstructures are presented by optical microscopy. The morphologies of the scales and nature of their adherence to the alloy substrates, and scale spallation have been characterized by SEM and EDAX. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：242 / 247

页数：6

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