The Effects of Filler Metal Transformation Temperature on Residual Stresses in a High Strength Steel Weld

被引：62

作者：

Francis, J. A. ^{[1
]}

Stone, H. J. ^{[2
]}

Kundu, S. ^{[2
]}

Bhadeshia, H. K. D. H. ^{[2
]}

Rogge, R. B. ^{[3
]}

Withers, P. J. ^{[1
]}

Karlsson, L. ^{[4
]}

机构：

[1] Univ Manchester, Sch Mat, Manchester M1 7HS, Lancs, England

[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

[3] CNR, Canada Chalk River Labs, Canadian Neutron Beam Ctr, Chalk River, ON K0J 1P0, Canada

[4] Cent Res Labs, ESAB AB, SE-40277 Gothenburg, Sweden

来源：

JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME | 2009年 / 131卷 / 04期

关键词：

bainite; martensite; neutron diffraction; phase transformation; transformation strain; weld metal; FATIGUE-STRENGTH; JOINTS; PLATE;

D O I：

10.1115/1.3122036

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Residual stress in the vicinity of a weld can have a large influence on structural integrity. Here the extent to which the martensite-start temperature of the weld filler metal can be adjusted to engineer the residual stress distribution in a bainitic-martensitic steel weld was investigated. Three single-pass groove welds were deposited by manual-metal-arc welding on 12 mm thick steel plates using filler metals designed to have different martensite-start temperatures. Their longitudinal, transverse, and normal residual stress distributions were then characterized across the weld cross section by neutron diffraction. It was found that tensile stresses along the welding direction can be reduced or even replaced with compressive stresses if the transformation temperature is lowered sufficiently. The results are interpreted in the context of designing better welding consumables. [DOI: 10.1115/1.3122036]

引用

页数：8

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