Effect of bismuth on weld joint penetration in austenitic stainless steel : bismuth is shown to have a distinct effect on bead shape and joint penetration
Effect of bismuth on weld joint penetration in austenitic stainless steel : bismuth is shown to have a distinct effect on bead shape and joint penetration
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DOI：
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发表时间：
1992
期刊：
影响因子：
2.2
通讯作者：
Y. Takeuchi;R. Takagi;T. Shinoda
中科院分区：
文献类型：
--
作者：
Y. Takeuchi;R. Takagi;T. Shinoda
添加铋的不锈钢由于其良好的机械加工性，特别是具有优异的切屑破碎性能，以及其上级的锻造特性而得到开发。据报道，铋可作为表面活性剂，降低熔融金属的表面张力，从而细化铸锭的凝固结构。铋对不锈钢可焊性的影响尚不清楚。表面张力对不锈钢钨极氩弧焊接头熔深形状的影响已被广泛研究和阐明
Bismuth-added stainless steels have been developed due to their good machinability, with excellent chip fragmentation property in particular, and their superior characteristics of forging. Bismuth has been reported to act as a surface active agent that lowers the surface tension of molten metal and thus refines the solidification structure of cast ingots. The effect of bismuth on the weld-ability of stainless steels is yet to be made clear. The effect of surface tension on the weld joint penetration shape of stainless steel in the case of gas tungsten arc welding has been extensively studied and clarified