钢材经过冷作硬化成型后，材料屈服强度会有明显的提高。
Steel materials will be obviously hardened after the cold-formed process.
在无缝钢管的冷拔过程中，存在着冷作硬化和氢脆现象，它们是造成钢管开裂的主要原因。
There exist problems of cold-working hardening and hydrogen-brittle in the cold-drawing process for seamless steel tube, responsible for the cracking in the steel tube.
板材冷作硬化效应主要取决于母材的强度、伸长率和强屈比，其中强屈比对型钢的冷作硬化效应影响最大；
Strain-hardening are mainly determined by strength, elongation and strength yield ratio of virgin steel, among which the strength yield ratio is the most important influence factor.
板材冷作硬化效应主要取决于母材的强度、伸长率和强屈比，其中强屈比对型钢的冷作硬化效应影响最大；
Strain-hardening are mainly determined by strength, elongation and strength yield ratio of virgin steel, among which the strength yield ratio is the most important influence factor.
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