Observation of nucleation and growth of acicular ferrite in HSLA steel weld-metal

被引：0
|
作者：
Terasaki, Hidenori [1 ]
Yamada, Tomonori [2 ]
Komizo, Yu-ichi [1 ]
机构：
[1] Osaka Univ, Joining & Welding Res Inst, 11-1 Mihogaoka, Osaka 5670047, Japan
[2] Osaka Univ, Grad Sch, Osaka, Ibaraki 5670047, Japan
来源：
ADVANCED WELDING AND MICRO JOINING / PACKAGING FOR THE 21ST CENTURY | 2008年 / 580-582卷
关键词：
acicular ferrite; heterogeneous nucleation; spinel inclusion; weld metal;
D O I：
10.4028/www.scientific.net/MSF.580-582.33
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Heterogeneous nucleation and growth of acicular ferrite in HSLA steel weld-metal were in-situ observed by using laser scanning confocal microscopy. The applied thermal cycle simulated cooling rate of large heat-input welding. The high time-resolved images made for heterogeneous nucleation at inclusion and hard impingement between ferrite plates to be clear. Furthermore, the crystal orientation relationships between observed substrate for the heterogeneous nucleation and nucleated solid were analyzed.
引用
收藏
页码：33 / +
页数：2
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