本文提出一种不含Ｓｉ的镍基Ｎｉ－Ｃｒ－Ｃｏ－Ｂ高温钎料．对一系列Ｎｉ－Ｃｒ－Ｃｏ－Ｂ钎料的熔化特性、钎焊工艺性能、钎料组织以及钎焊接头的室温和高温强度、接头韧性进行了研究，并与标准镍基钎料ＢＮｉ－１ａ和ＢＮｉ－５进行了比较研究结果表明，Ｎｉ－Ｃｒ－Ｃｏ－Ｂ钎料钎焊的高温合金接头的高温性能和韧性均超过标准镍基钎料．
For improving the toughness and elevated temperature mechanical properties of brazed superalloy joints, the silicon－free Ni-CrCo-B brazing filler alloys have been developed. The microstructure, melting characteristics and brazing properties of a series of Ni-CrCo-B filler metals were investigated. Mechanical properties at room and elevated temperatures of superalloy joints brazed with the Ni-Cr-Co-B filler metals were evaluated and compared with those of brazed joints with conventional nickel-base filler metals BNi-1a and BNi-5. It was shown that the toughness and high-temperature mechanical properties of the brazed joints made with the developed Ni-Cr-Co-B filler alloys are better than the latter.
参考文献
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| [2] | KX著,金钦乾,徐澄宇,马翔译．钢和合金的物理化学相分析．北京:国防工业出版社,1982:1842LugscheiderE,PartzK-D．WeldJ,1983 |
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