目的在于比较不同合金成分对应力腐蚀敏感性的影响。
The purpose of the research is to compare the effect of different alloying constituents on the stress corrosion sensitivity.
试验结果表明，钛合金ta7在甲醇中具有应力腐蚀敏感性。
It demonstrates that TA7 has SCC susceptibility in methanol solution.
通过试验数据的逐步回归分析，进一步揭示试验介质参数对应力腐蚀敏感性指数影响的显著性。
By stepwise regression analysis of test results, the notabilities of effect on stress corrosion cracking susceptive indexes of medium parameters are revealed.
材料因素方面主要分析了三种不同种类的钢以及同一钢种母材和焊缝的应力腐蚀敏感性的差异。
The discrepancies of stress corrosion cracking susceptibility between different types of steel, base matal and welds are analyzed.
随着阴极电位降低，不断增加的氢影响裂纹萌生和扩展，应力腐蚀敏感性随外加电位的降低而增大。
When the cathodic potential decreases, more and more hydrogen affects the initiation and growth of crack. The SCC susceptibility increases with the decreasing of cathodic potential.
但是较慢的溶解速率以及相对高的应变速率使得裂纹没有足够时间发生有效扩展，应力腐蚀敏感性仍然较低。
Nevertheless, there are not enough time for the effective growth of the cracks because of slow dissolution rate and relative high strain rate. Therefore, the SCC susceptibilities are also low.
基于以上的观点，本文采用慢应变速率实验方法探讨了预形变对X70管线钢在模拟土壤介质中应力腐蚀敏感性的影响。
On the base of above appoints, the slow strain rate test was used to study the effect of prestraining on the SCC susceptibility of X70 pipeline steel in simulate soil media.
试验结果表明，外加阳极极化和阴极极化都能增加7075铝合金的应力腐蚀敏感性，即使在弱极化情况下也能显著增加合金的应力腐蚀敏感性。
The experimental results show that the SCC susceptibility of 7075 aluminum alloy would increase in anodic or cathodic polarization, even under a weak polarization.
这些结果说明，海洋用钢的应力腐蚀开裂敏感性与加载条件下材料的表面状态，SRB活动和渗氢特征有密切关系。
All these results showed the close relationship of SCC sensitivity with the surface state of the material under dynamic loading conditions, SRB activity and hydrogen permeation characteristics.
这些结果说明，海洋用钢的应力腐蚀开裂敏感性与加载条件下材料的表面状态，SRB活动和渗氢特征有密切关系。
All these results showed the close relationship of SCC sensitivity with the surface state of the material under dynamic loading conditions, SRB activity and hydrogen permeation characteristics.
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