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急冷Ni-Cr-B合金箔带钎料的制备及其可焊性
Preparation of Rapidly Quenched Ni-Cr-B Alloy Ribbon and Its Weldability
查看参考文献8篇
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文摘
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采用液态急冷单辊法制备了急冷Ni-Cr-B中间合金箔带。利用DSC，XRD和SEM等方法对急冷Ni-Cr-B合金箔带的固液相线的温度，结构及成分分布进行了研究。利用液态金属表面张力仪测定了急冷Ni-Cr-B合金箔带在镍基高温合金上的润湿性。并采用此中间合金对镍基高温合金进行了瞬态液相连接（TLP Bonding），测定了连接后的试棒在1010℃／248MPa下的持久寿命。结果表明，制备的Ni-Cr-B合金箔带成分均匀，熔点适于TLP连接。液态钎料对镍基高温合金基体具有良好的润湿性。采用这种中间合金对镍基高温合金进行TLP连接后的接头持久性能接近于母材。 |
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其他语种文摘
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Rapidly quenched Ni-Cr-B alloy ribbon was prepared by the rapidly-quenched method using a single steel roll. By XRD,SEM and DSC methods, the microstructure, element distributions and temperature of solidus and liquidus of Ni-Cr-B alloy ribbon were studied respectively. The wettability of Ni-Cr-B alloy were investigated by use of surface ten-sion instrument. The TLP bonding was carried out using Ni-Cr-B ribbon and the stress rupture life of the bonded specimen at 1 010 °C/248 MPa were measured. The results show that the chemical compositions of Ni-Cr-B ribbon are homogeneous and its melting point is suitable to TLP bond-ing. The wettability of molten Ni-Cr-B alloy on Ni-based superalloy sub-strate is good. After TLP bonding,the stress rupture life at 1 010 cC/248 MPa almost reaches that of the superalloy substrate. |
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来源
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焊接学报
,2002,23(6):82-84 【核心库】
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关键词
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钎料
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制备
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急冷
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Ni-Cr-B箔带
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润湿性
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性能
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地址
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中国科学院金属研究所, 沈阳, 110016
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0253-360X |
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学科
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金属学与金属工艺 |
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文献收藏号
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CSCD:1121704
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参考文献 共
8
共1页
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