...
首页> 外文期刊>Materials Science & Engineering. A, Structural Materials: Properties, Microstructure and Processing >Influence of Si content on the intergranular corrosion of SUS 309L stainless steels
【24h】

Influence of Si content on the intergranular corrosion of SUS 309L stainless steels

机译:Si含量对SUS 309L不锈钢晶间腐蚀的影响

获取原文
获取原文并翻译 | 示例
           

摘要

The effect of Si content on the intergranular corrosion resistance of SUS 309L stainless steels was investigated by 10 wt. percent oxalic acid test, 65 wt. percent boiling nitric acid test, double loop electrochemical potential reactivation (DLEPR) method, optical microscope (OM) and scanning electronic microscope (SEM). A maximum corrosion rate, weight loss of 2.80 g m~(-1) h, was obtained when SUS 309L stainless steel containing 0.73 wt. percent Si was subjected to heat treatment at 800 deg C for 1 h. It shows that the Cr depletion zone formed due to sigma phase precipitation. The same result is obtained in DLEPR test and the ditch microstructure after oxalic test was found in samples that showed the minimum corrosion rate.
机译:硅含量对SUS 309L不锈钢抗晶间腐蚀性的影响为10 wt。%。草酸百分比测试,65 wt。沸点硝酸测试,双回路电化学势再活化(DLEPR)方法,光学显微镜(OM)和扫描电子显微镜(SEM)。当含有0.73 wt。%的SUS 309L不锈钢获得最大腐蚀速率时,失重为2.80 g m〜(-1)h。 %的Si在800℃下经受热处理1小时。这表明Cr耗尽区是由于σ相沉淀形成的。在DLEPR测试中获得了相同的结果,草酸测试后的沟槽微观结构显示出最低的腐蚀速率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号