• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Heat Treatment on the Microstructure Evolution and Sensitization Behavior of High-Silicon Stainless Steel
【24h】

Effect of Heat Treatment on the Microstructure Evolution and Sensitization Behavior of High-Silicon Stainless Steel

机译：热处理对高硅不锈钢微观结构演化和敏化行为的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The microstructure and sensitization behavior of high-silicon stainless steel containing 4.0 wt.% Si was studied after stabilization heat treatment followed by isothermal heat treatment. Isothermal heat treatment for 6 h was carried out on the alloy at two different temperatures, viz. 500 and 750 degrees C, after stabilization heat treatment at 950 degrees C. Phase fraction of the high-silicon stainless steel remained constant after isothermal heat treatment. Fine (Ti,C) precipitates of angular and spherical morphology were observed throughout the microstructure, in all the heat-treated sample conditions. Their number density was measured and related to the processing conditions that they were exposed to. Additionally, the presence of Cr and C was confirmed by compositional analysis, and they appeared at the grain boundary in the sample isothermally heat-treated at 750 degrees C for 6 h. Sensitization study of the heat-treated samples was carried out with the help of double-loop electrochemical potentiokinetic reactivation test in specially prepared acid etchant, and it was observed that degree of sensitization depended strongly on the formation of Cr-depleted zone along the grain boundary. Based on our study, we conclude that stabilization heat treatment significantly reduces the sensitization behavior, even for steel containing significant fraction of Si.
机译：高硅不锈钢含有4.0重量％的微观结构和敏化行为。在稳定热处理后研究了稳定热处理后的量。在两种不同温度的合金中，在合金中进行6小时的等温热处理。 500和750℃，在950℃下稳定热处理后，在等温热处理后，高硅不锈钢的相位保持恒定。在整个微观结构中观察到精细（Ti，c）角度和球形形态的沉淀物，在所有热处理的样品条件下。它们的数量密度被测量并与其暴露于的加工条件相关。另外，通过组合物分析证实了Cr和C的存在，并且它们在样品中出现在750℃的样品中的晶界面6小时。在特殊制备的酸蚀刻剂的双回路电化学型滴度试验的帮助下进行了对热处理样品的敏化研究，并且观察到敏感程度沿着晶界形成Cr耗尽区的形成。基于我们的研究，我们得出结论，即使对于含有大部分Si的钢，稳定性热处理也显着降低了敏化行为。

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