...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Tribology in Industry >Slurry Erosion Behavior of Destabilized and Deep Cryogenically Treated Cr-Mn-Cu White Cast Irons
【24h】

Slurry Erosion Behavior of Destabilized and Deep Cryogenically Treated Cr-Mn-Cu White Cast Irons

机译：不稳定和深冷处理的Cr-Mn-Cu白口铸铁的浆液侵蚀行为

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The effects of destabilization treatment and destabilization followed by cryogenic treatment have been evaluated on the microstructural evolution and sand-water slurry erosion behavior of Cr-Mn-Cu white cast irons. The phase transformations after the destabilization and cryotreatment have been characterized by bulk hardness measurement, optical and scanning electron microscopy, x-ray diffraction analysis. The static corrosion rate has been measured in tap water (with pH=7) and the erosion-corrosion behavior has been studied by slurry pot tester using sand-water slurry. The test results indicate that the cryogenic treatment has a significant effect in minimizing the as-cast retained austenite content and transforming into martensitic and bainitic matrix embedded with ultra-fine M7C3 alloy carbides. In contrast, by conventional destabilization treatment retained austenite in the matrix are not fully eliminated. The slurry erosive wear resistance has been compared with reference to destabilized and cryotreated high chromium iron samples which are commonly employed for such applications. The cryotreated Cr-Mn-Cu irons have exhibited a comparable erosive wear performance to those of high chromium irons. Higher hardness combined with improved corrosion resistance result in better slurry erosion resistance.
机译：评估了去稳定化处理和去稳定化处理后再进行低温处理对Cr-Mn-Cu白口铸铁的组织演变和砂水浆侵蚀行为的影响。失稳和低温处理后的相变已通过体硬度测量，光学和扫描电子显微镜，x射线衍射分析进行了表征。测量了自来水（pH = 7）中的静态腐蚀速率，并通过砂锅测试仪使用砂水浆料研究了腐蚀腐蚀行为。测试结果表明，深冷处理在使铸态残余奥氏体含量最小化并转变为嵌入超细M7C3合金碳化物的马氏体和贝氏体基体方面具有显著作用。相反，通过常规的去稳定化处理不能完全消除基质中残留的奥氏体。相对于通常用于此类应用的去稳定和冷冻处理的高铬铁样品，已经比较了浆料的耐侵蚀性。低温处理的Cr-Mn-Cu铁表现出与高铬铁相当的腐蚀磨损性能。较高的硬度与改善的耐腐蚀性相结合，可产生更好的耐泥浆侵蚀性。

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