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郑运荣 , 阮中慈
金属学报
参照含Hf铸造镍基合金在凝固最后阶段包围γ枝晶的富Hf熔体,熔炼了Ni-18.6Co-4.5Cr-4.7W-25.6Hf合金钎焊料。这种共晶合金初生的Ni_5Hf相呈长棒状,γ+Ni_5Hf共晶中的γ相为领先相,棒状γ相被Ni_5Hf相包围。在垂直和平行于γ生长方向的磨面上共晶分别呈蜂窝状和片状。合...
关键词: Ni-Hf钎焊料 , Hf-bearing Ni-base superalloy , Ni_5Hf phase , brazing
ZHENG Yunrong RUAN Zhongci Institute of Aeronautical Materials , Beijing , China ZHENG Yunrong , Senior Engineer , Laboratory No.4 Institute of Aeronautical Materials
金属学报(英文版)
In consideration of the envelopment of γ dendrites by the Hf-rich melts at the late period of solidification of the cast Ni-base superalloys containing Hf,a heat of brazing filler alloy composed of Ni-18.6Co-4.5Cr-4.7 W-25.6Hf(wt-%)was prepared.This alloy is hypereutectic.γ phase is the leading phas...
关键词: Ni-Hf brazing alloy , null , null , null , null
