Effect of high energy density welding processes on inclusion and microstructure formation in steel welds

被引：30

作者：

Babu, SS

Reidenbach, F

David, SA

Böllinghaus, T

Hoffmeister, H

机构：

[1] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA

[2] Inst Failure Anal & Failure Prevent, Hamburg, Germany

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 1999年 / 4卷 / 02期

关键词：

D O I：

10.1179/136217199101537581

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Inclusion formation and microstructure development in autogenous laser and electron beam welds made on a submerged arc weld deposit were investigated. Oxygen loss from the submerged arc wield metal deposit to the atmosphere occurred during electron and laser beam welding owing to the low pressure and helium shielding, respectively. Rapid weld cooling rates and changes in oxygen concentration resulted in different inclusion characteristics in these welds. The measured inclusion characteristics were compared with calculations obtained using an inclusion model. Acicular ferrite and bainitic microstructures were observed in electron beam welds, and predominantly martensitic microstructures were observed in laser welds.

引用

页码：63 / 73

页数：11

共 31 条

[21] MECHANISMS OF INCLUSION FORMATION IN AL-TI-SI-MN DEOXIDIZED STEEL WELD METALS [J].

KLUKEN, AO ;

GRONG, O .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1989, 20 (08) :1335-1349

[22]

LIU S, 1986, WELD J, V65, pS139

[23]

Mundra K, 1997, WELD J, V76, pS163

[24]

MUNDRA K, 1993, WELD J, V72, pS1

[25]

RASBAND W, REPORT US NATL I HLT

[26]

SANCHEZOSIO A, 1995, WRC B, V399, P1

[27] EFFECTS OF CHEMISTRY, DENSITY AND SIZE DISTRIBUTION OF INCLUSIONS ON THE NUCLEATION OF ACICULAR FERRITE OF C-MN STEEL SHIELDED-METAL-ARC-WELDING WELDMENTS [J].

STLAURENT, S ;

LESPERANCE, G .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1992, 149 (02) :203-216

[28]

Taylor CR, 1943, T AM I MIN MET ENG, V154, P228

[29]

THEWLIS G, 1994, MATER SCI TECH SER, V10, P110, DOI 10.1179/026708394790163834

[30]

YANG JR, 1987, ADV WELDING SCI TECH, P209

← 1 2 3 4 →