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利用拉伸试验方法研究了应变强化对焊接缺陷裂纹的影响,试验分析了不同的应变量、不同方向的应变强化对裂纹缺陷的影响,结果表明:3%应变强化使裂纹缺陷增长了30%,6%应变强化使裂纹缺陷增长了60%;3%横向应变强化比3%纵向应变强化对裂纹缺陷的影响大。
The effect of strain hardening on the crack of welding defects was studied by tensile test. The effects of different strain amount and strain hardening in different directions on the crack defects were analyzed. The results show that 3% strain strengthening increased the crack defects by 30% 6% strain increase the crack defects increased by 60%; 3% transverse strain strengthening than 3% longitudinal strain hardening on the crack defects.