资料指出,Nb-1Zr-C 系铌合金在800—1000℃温度区间有时效趋向。过饱和固溶体分解过程析出铌和锆的碳化物相以及铌的氧化相。这类合金焊接接头中的固溶体在焊后冷却过程直接进行分解。侭本文研究了热处理规范对 Nb-1Zr-C 系合金焊缝金属性能的影响。合金的化学成份列于表1 The data indicate that Nb-1Zr-C niobium alloys have a tendency of aging at a temperature range of 800-1000 ° C. Supersaturated solid solution decomposition process precipitation of niobium and zirconium carbide phase and niobium oxide phase. The solid solution in such alloy welded joints is directly decomposed in the post-weld cooling process.侭 This article studies the influence of heat treatment specifications on the properties of Nb-1Zr-C alloy weld metal. The chemical composition of the alloy is given in Table 1