本文通过对冲击试验的理论研究,结合国内外对不锈钢韧性指标的规定要求,综合参考工程实践结果和部分文献内容,提出用侧向膨胀量来衡量高韧性的不锈钢焊缝比用冲击功更为合理的结论;并对不锈钢应变强化技术国标化以及冲击韧性合格标准的完善提出期望。 Based on the theoretical research of impact test and the domestic and international requirements for the toughness index of stainless steel, the paper proposes that the stainless steel weld with high toughness measured by lateral expansion is better than the impact energy by comprehensively referring to the engineering practice and some references. Reasonable conclusion; and put forward the expectation to the national standardization of stainless steel strain strengthening technology and the perfection of the impact toughness standard.