根据国标关于δ_c的基本规定,考虑了应力腐蚀开裂恒位移试验的特点,提出了用多试样阻力曲线法确定δ_(scc)的原理及方法。按此法得到的δ_(scc)试验结果同兰石所等单位用三点弯曲试样得到的结果进行了对比,二者基本相同。
In this paper both principle and technique of determinating δscc are presented. In accordance with the specifications of the National Standard Method of δ_c determination and in view of the characteristics of constant displacement testing for stress corrosion cracking, a resistance curve method with constant displacement specimens is used. Test results of this method are comparable with those of different methods obtained by other authors.
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