用含Hf的中间层合金钎接或暂存液相连接单晶高温合金时,为了使Hf尽快地由焊缝区向母体合金扩散,研究了Hf在基体相Ni(γ)和Ni3AI(γ′)中的扩散行为,并算出扩散系数和扩散激活能,找到了扩散系数与温度、浓度的关系,为选择合适的焊接条件提供依据
The Hf-containing alloy was selected as a interlayer for brazing and Transient-Liquid-Phase(TLP) bonding of single crystal superalloy, in which element Hf should diffuse as quickly as possible from bond to matrix phase. The objective of this investigation
参考文献
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| [2] | 郑运荣,阮中慈．金属学报,1990,26(2):B1192MassalskiTB,MurrayJL,BennettLNBinaryAlloyPhaseDiagramsVol．Ⅱ,MetalPark,Ohio,ASM,1986:13003阮中慈Ni-Hf．Ni-Hf金的显微组织及其扩散连结行为,[硕士学位论文],北京航空航天大学研究生院,19904ZhengYunrong,LiChenggong．In |
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