3P固溶體以及Ni(Cr)和Ni3P共晶組織組成，微量的SiC納米線可以顯著細(xì)化基體組織，使焊點(diǎn)抗剪切強(qiáng)度提高29.6%。SiC納米線的添加使釬料的熔化溫度提高約4 ℃，顯著促進(jìn)釬料在Q235基板表面的潤濕性，增幅達(dá)到12.5%。然而，過量添加SiC納米線會(huì)顯著粗化基體組織，降低釬料的潤濕性和焊點(diǎn)的抗剪切強(qiáng)度。在不同SiC含量的Ni-Cr-P釬料中，Ni-Cr-P-0.1SiC釬料/焊點(diǎn)具有明顯的優(yōu)越性。;SiC nanowires with excellent high temperature strength, high thermal conductivity, high wear resistance, and high corrosion resistance were adopted as additive into the Ni-Cr-P filler metal. The microstructures and properties of filler metal/brazed joints were studied. Results show that the microstructure of filler metal is composed of Ni(Cr) solid solution, Ni3P intermetallic compound phase, and Ni(Cr)+Ni3P eutectic structure. A small amount of SiC nanowire can refine the matrix microstructure and improve the shear strength of brazed joints by 29.6%. The addition of SiC nanowire can increase the melting temperature of filler metal by about 4 °C and significantly enhance the wettability of filler metals on steel substrate by 12.5%. However, excessive addition of SiC nanowire can significantly coarsen the matrix microstructure, reduce the wettability of filler metal, and decrease the shear strength of brazed joints. Among the Ni-Cr-P filler metals with different SiC contents, Ni-Cr-P-0.1SiC filler metal/brazed joint shows the obvious superiority."/>