Wide-gap brazing of IN738 and the bonding strength using Ni-based filler metal powders

被引：2

作者：

Kim, Y. H. ^{[1
]}

Kim, I. H. ^{[2
]}

Kim, K. T. ^{[1
]}

Shin, S. Y. ^{[1
]}

机构：

[1] Korea Inst Ind Technol, Adv Funct Mat Team, 7-47 Songdo, Inchon 406800, South Korea

[2] Korea Inst Ind Technol, Adv Mat Div, Inchon 406-800, South Korea

来源：

MECHANICAL BEHAVIOR OF MATERIALS X, PTS 1AND 2 | 2007年 / 345-346卷

关键词：

wide-gap brazing; IN738; superalloy; additive powder; bonding strength; eutectic;

D O I：

10.4028/www.scientific.net/KEM.345-346.1449

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructure and bonding strength of the wide-gap region brazed with different filler metal powder (BNi-3 and DF 4B) and various powder mixing ratios of additive powder to filler metal powder were investigated. The microstructure characterization showed that Cr borides with a blocky morphology were existed in the brazed region in both filler metal powder, The bonding strength of the wide-gap region brazed with 60 wt.% IN738 additive and 40 wt.% DF 413 powder exhibited 92% tensile strength of IN738 superalloy at room temperature. The Cracks in the wide-gap brazed region initiated at the intermetallic compound and eutectic structure, and then propagated through them.

引用

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页码：1449 / +

页数：2

共 45 条

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