Effect of Zinc on Stress Corrosion Crack Growth Rate of Type 316 Stainless Steel
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摘要: 通过使用直流电压降法测量316不锈钢在高温水中的应力腐蚀速率,研究了10、20、40μg/kg乙酸锌对316不锈钢应力腐蚀的影响。实验结果显示,回路内注入10μg/kg乙酸锌时316不锈钢的裂纹扩展速率比加氢时的裂纹扩展速率低5倍,而加入20、40μg/kg乙酸锌后316的裂纹扩展速率上升。Abstract: The effect of zinc(10,20,40 μg/kg) on stress corrosion cracking of 316 stainless steel was studied in this work by using the direct current potential drop method to measure the crack growth rate in high temperature water.The experiment results show that the crack growth decreases by 5 times after addition of 10 μg/kg zinc,however the crack growth rate slightly increased after adding 20,40 μg/kg of zinc.
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Key words:
- Stress corrosion cracking /
- Crack growth rate /
- 316 stainless steel /
- Zinc acetate
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