Z2CND17-12不锈钢自动脉冲TIG焊性能试验

原瑜; 王天先; 王文利; 类成龙

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Z2CND17-12不锈钢自动脉冲TIG焊性能试验
Performance test of automatic pulse TIG welded joint of Z2CND17-12 stainless steel
2018年48卷第8期页码：92-95
纸质出版：2018
DOI：
稿件说明：

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原瑜, 王天先, 王文利, 等. Z2CND17-12不锈钢自动脉冲TIG焊性能试验[J]. 电焊机, 2018,48(8):92-95. DOI：

YUAN Yu, WANG Tianxian, WANG Wenli, et al. Performance test of automatic pulse TIG welded joint of Z2CND17-12 stainless steel[J]. Eletric Welding Machine2018, 48(8): 92-95. DOI：

摘要

根据Z2CND17-12不锈钢的焊接特点

采用自动脉冲TIG焊焊接Z2CND17-12不锈钢

并对其焊接接头进行拉伸、冲击、弯曲和金相显微组织等理化性能检验

各项性能优良;采用脉冲多层多道焊

焊接热输入量较小

使得焊缝的金相组织上部以树枝状δ铁素体为主、中部以蠕虫状和树枝状δ铁素体为主、下部以网状δ铁素体为主;热影响区的晶粒及组织无明显变化。

Abstract

According to the welding characteristics of Z2 CND17-12 stainless steel

Z2 CND17-12 stainless steel was welded by automatic pulse TIG welding. The welded joints were tested by the tensile test

impulse test

bending test and microstructure analysis. The results show that all the performances of the welded joint is much higher than the requirements in the standard of the RCC-M volume Ⅳ. Pulse multilayer multipass welding is adopted for welding

and the welding heat input is small

so the microstructure in the upper of weld zone is mainly dendritic δ-ferrite

the microstructure in the center of weld zone is mainly vermicular and dendritic δ-ferrite

and the microstructure in the lower of weld zone is mainly network δ-ferrite. There is no obvious change in the HAZ grain and significant microstructure.