EFFECT OF STRESS RELIEVING ON FRACTURE PROPERTIES OF SUBMERGED-ARC WELDS OF C-MN STEELS

被引：14

作者：

FARRAR, RA

TAYLOR, LG

HARRISON, EM

机构：

[1] Engineering Materials Laboratories, University of Southampton

[2] Metallurgical Department, Babcock and Wilcox (Operations) Ltd., Renfrew

来源：

METALS TECHNOLOGY | 1979年 / 6卷 / OCT期

关键词：

D O I：

10.1179/030716979803276093

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A series of multipass submerged-arc welds in C–Mn steels produced at interpass temperatures of 60° and 250°C have been studied in the as-welded and stress-relieved conditions. For those welds containing 0·08%C and less than 1·0%Mn stress relieving at 625°C causes an increase in the critical crack-opening displacement (COD) transition temperature, owing to the formation of brittle grain-boundary carbide networks. To explain this carbide development a carbon-concentration profile model, which depends on the extent of the transformation of austenite to pro-eutectoid ferrite is proposed. The results are compared with earlier work on steels containing 0·08%C and more than 1·0%Mn in which stress relieving produced a decrease in the critical COD transition temperature. © 1979, The Metals Society. All rights reserved.

引用

页码：380 / 389

页数：10

共 21 条

[1]

Gentilicore K.J., Pense A.W., Stout R.D., Weld. J, 49, pp. 341s-353s, (1970)

[2]

Stout R.D., McGready L.J., Weld. J, 28, pp. 1s-9s, (1949)

[3]

Boyd J.D., Metall. Trans, 7A, pp. 1577-1585, (1976)

[4]

Wessel E.T., Pryle W.H., Weld. J, 40, pp. 41s-48s, (1961)

[5]

Knott J.F., Effect of second-phase particles on the mechanical properties of steel, pp. 44-53, (1971)

[6]

Gladman T., Homes B., McIvor I.D., Effect of second-phase particles on the mechanical properties of steel, pp. 68-78

[7]

Toyooka T., Terai K., Weld. J, 52, pp. 247s-254s, (1973)

[8]

Farrar R.A., Tuliani S.S., Norman S.R., Weld. Met. Fabr, 42, pp. 68-73, (1974)

[9]

Harrison J.D., Performance of offshore structures, pp. 72-82, (1976)

[10]

Tuliani S.S., Welding research related to power plant engineering, pp. 232-246, (1972)

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