Interface characteristics in diffusion bonding of Fe3Al with Cr18-Ni8 stainless steel

被引：7
|
作者：
Wang, J [1 ]
Li, YJ
Yin, YS
机构：
[1] Shandong Univ, Sch Mat Sci & Engn, Key Lab Liquid Struct & Hered Mat, Jinan 250061, Peoples R China
[2] Harbin Inst Technol, Natl Key Lab Adv Welding Prod Technol, Harbin 150001, Peoples R China
来源：
JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2005年 / 285卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Fe3Al/Cr18-Ni8; interface; diffusion bonding; reaction layer; characteristics;
D O I：
10.1016/j.jcis.2004.10.071
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Fe3Al and Cr18-Ni8 stainless steel were diffusion-bonded in vacuum and a Fe3Al/Cr18-Ni8 interface with reaction layer was formed. Microstructure in the reaction layer at Fe3Al/Cr18-Ni8 interface was analyzed by means of scanning electron microscope (SEM) and electron probe micro-analyzer (EPMA). The growth of reaction layer with heating temperature (T) and holding time (t) was researched. The results indicate that FeAl, Fe3Al, Ni3Al, and alpha-Fe (Al) solid solution are formed in the reaction layer. These phases are favorable to promote the element diffusion and to accelerate the formation of the reaction layer at Fe3Al/Cr18-Ni8 interface. The growth of reaction layer obeys the parabolic law and its thickness (X) is expressed by X-2 = 7.5 x 10(-4) exp(-83.59/RT)(t - t(0)). (c) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码：201 / 205
页数：5
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