Nature and evolution of the fusion boundary in ferritic-austenitic dissimilar metal welds - Part 2: on-cooling transformations

被引：0
|
作者：
Nelson, T.W. [1 ]
Lippold, J.C. [2 ]
Mills, M.J. [2 ]
机构：
[1] Brigham Young University, Provo, UT, United States
[2] Ohio State University, Columbus, OH, United States
来源：
Welding Journal (Miami, Fla) | 2000年 / 79卷 / 10期
关键词：
Alloys - Austenite - Crack initiation - Crack propagation - Ferrite - Filler metals - Grain boundaries - Heat affected zone - Metallographic microstructure - Optical microscopy - Phase transitions - Transmission electron microscopy;
D O I：
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摘要：
Microstructural evolution at the fusion boundary in dissimilar welds between ferritic and austenitic alloys can significantly influence both the weldability and service behavior of the dissimilar combination. This article discusses the nature and evolution of the fusion boundary and surrounding regions in dissimilar metal welds during subsequent on-cooling transformations in the fusion zone and heat affected zone (HAZ). It also proposes a theory describing the evolution of the fusion boundary.
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