| 钼对低合金钢硝酸盐体系应力腐蚀的影响 |
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| 摘 要： | 以高风温热风炉用钢的沿晶应力腐蚀开裂问题为背景,研究了Ｍｏ对低合金钢在硝酸盐溶液中的应力腐蚀行为。结果表明,低合金钢中加入合金元素将使钢中贝氏体和／或珠光体含量增大,从而提高了材料的稳定性和抗ＳＣＣ耐蚀性。提出了低合金钢／硝酸盐溶液体系的“温度－钼含量－ＳＣＣ图”。
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| 关 键 词： | 低合金钢 应力腐蚀开裂 钼元素 贝氏体 |
The Effect of Mo on SCC of System"Low Alloy Steels/Nitrate Solutions |
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| Authors: | Cao Bei Fang Zhi Wu Yinshun |
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| Institution: | Dept.of Surface Science and Corrosion Engineering |
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| Abstract: | The effect of Mo on the susceptibility to SCC of the low alloy steels in nitrate solutions has been studied by SSRT technique on the background of the intergranular stress corrosion cracking at high temperature.The addition of Mo to the alloy steel is favorable for the transformation of ferrite to bainite and/or pearlite and the latters are more resistant to SCC than the former.The diagram of"temperature-Mo content-SCC"of the system"low alloy steels/nitrate solutions"is proposed. |
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| Keywords: | low alloy steel stress corrosion cracking Mo element bainite |
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