In manufacturing the sample for tension test, submerged-arc welded ( SAW) spiral seam pipe is likely to have plastic deformation as opposed to the deformation in its forming process, thus causing the Bauschinger Effect.
螺旋缝埋弧焊管在拉伸试样的制作时会产生和焊管成型过程中变形相反的塑性变形,从而引发包申格效应。
The SSCC sensitivity of 20# steel pipes welded with different electrodes in H_2S media and the impact of PWHT on SSCC were evaluated through C ring sample SSCC sensitivity tests.
通过C型环试样应力腐蚀敏感性试验,评定了不同焊条焊接20号钢管在硫化氢介质中的应力腐蚀开裂的敏感性以及焊后热处理对SSCC的影响。
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