WELDING AND WELDABILITY OF NICKEL-IRON ALUMINIDES.

被引：0

作者：

David, S.A. ^{[1
]}

Jemian, W.A. ^{[1
]}

Liu, C.T. ^{[1
]}

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

机构：

[1] Oak Ridge Natl Lab, Metals &, Ceramics Div, Oak Ridge, TN, USA, Oak Ridge Natl Lab, Metals & Ceramics Div, Oak Ridge, TN, USA

来源：

Welding Journal (Miami, Fla) | 1985年 / 64卷 / 01期

关键词：

ALUMINUM AND ALLOYS - Weldability - IRON AND ALLOYS - Weldability - MICROSCOPES; ELECTRON - Applications - NICKEL AND ALLOYS - Weldability - WELDS - Fracture;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A study was undertaken to investigate the weldability of the boron-doped (500 ppm by weight) ductile aluminides by gas tungsten arc (GTA) and electron beam (EB) welding processes. Autogenous GTA welding of boron-containing nickel-iron aluminides produced severe cracking within the weld metal and the heat-affected zone (HAZ). A series of EB welds with welding speeds ranging from 13 to 64 mm/s (30 to 150 ipm) with varying beam focus conditions gave successful complete joint pentration welds only in a narrow range of speeds and focus conditions. The cracks were predominantly intergranular in the HAZ and interdendritic in the fusion zone. Transmission electron microscopy (TEM) revealed tetragonal distortions of the ordered B2 (NiAl type) phase with a martensitic appearance. Microprobe analysis revealed extensive solute redistribution in the fusion zone and the HAZ as a result of the weld thermal cycle.

引用

共 50 条

[1] WELDING AND WELDABILITY OF NICKEL-IRON ALUMINIDES
DAVID, SA
JEMIAN, WA
LIU, CT
HORTON, JA
WELDING JOURNAL, 1985, 64 (01) : S22 - S28
[2] TEMPERATURE COEFFICIENT OF LINEAR EXPANSION OF IRON, NICKEL AND CHROMIUM ALUMINIDES.
Ivanov, E.G.
Russian metallurgy. Metally, 1986, (02) : 169 - 170
[3] ANOMALY OF THE PLASTICITY OF NICKEL ALUMINIDES.
Barinov, S.M.
Kotenev, V.I.
1600,
[4] Investigation of nickel, palladium and platinum aluminides.
Matkovic, P
Matkovic, T
METALURGIJA, 1997, 36 (02): : 99 - 103
[5] WELDING OF IRON ALUMINIDES - THE WELDABILITY OF FE3AL IS VERY SENSITIVE TO THE WELDING CONDITIONS AND ALLOY CONTENT CONDITIONS
DAVID, SA
HORTON, JA
MCKAMEY, CG
ZACHARIA, T
REED, RW
WELDING JOURNAL, 1989, 68 (09) : S372 - S381
[6] INFLUENCE OF CHROMIUM AND NICKEL ON WELDABILITY OF CAST-IRON IN RESISTANCE WELDING
SMOLYANI.YA
TANICHEV, AG
SOBOLEV, AN
WELDING PRODUCTION, 1973, 20 (07): : 50 - 53
[7] NICKEL-IRON BATTERIES
MATSUMOTO, I
IWAKI, T
OGAWA, H
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1982, 129 (08) : C314 - C314
[8] NICKEL-IRON HYDROGENASE
CAMMACK, R
FERNANDEZ, VM
HATCHIKIAN, EC
INORGANIC MICROBIAL SULFUR METABOLISM, 1994, 243 : 43 - 68
[9] NICKEL-IRON BATTERIES
IWAKI, T
TAKAHASHI, K
MITSUMATA, T
KITAMURA, E
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1979, (APR): : 48 - 48
[10] Commercialization of nickel and iron aluminides
Sikka, VK
INTERNATIONAL SYMPOSIUM ON NICKEL AND IRON ALUMINIDES: PROCESSING, PROPERTIES, AND APPLICATIONS, 1997, : 361 - 375

← 1 2 3 4 5 →