• 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 >Microstructures and Mechanical Characteristics of a Medium Carbon Super-Bainitic Steel After Isothermal Transformation
【24h】

Microstructures and Mechanical Characteristics of a Medium Carbon Super-Bainitic Steel After Isothermal Transformation

机译：等温转变后中碳超贝氏体钢的组织和力学性能

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 influence of isothermal treatments on microstructure, hardness, and tensile properties of a new designed medium carbon super-bainitic steel was studied by using the optical microscopy, scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and mechanical property tests. The results show that the isothermal transformation temperature and holding time combine to determine the variations of microstructure and mechanical properties in the low temperature range of 140-260 A degrees C. The size of bainitic laths is refined with the decrease in transformation temperature, but the bainitic transformation kinetic becomes lower. Longer treatment time can promote the transformation of complete bainite and also make the retained austenite more stable. The desired microstructure consisting of nanoscale carbide-free bainitic ferrite and thin film-like retained austenite located between the ferrite laths can be achieved at the temperature of 260 A degrees C for 10 h, where the excellent combination of strength, ductility and hardness can be obtained.
机译：通过光学显微镜，扫描电子显微镜，透射电子显微镜，X射线衍射和力学性能测试，研究了等温处理对新型设计的中碳超贝氏体钢的组织，硬度和拉伸性能的影响。结果表明，等温转变温度和保温时间共同决定了140-260 A低温范围内的显微组织和力学性能的变化。贝氏体板条的尺寸随着转变温度的降低而细化，但是贝氏体转变动力学降低。更长的处理时间可以促进完全贝氏体的转变，并使残留奥氏体更稳定。所需的微观结构可以在260 A的温度下保持10小时，从而获得由纳米级无碳化物的贝氏体铁素体和位于铁素体板条之间的薄膜状残留奥氏体组成的显微组织，在这种情况下，强度，延展性和硬度可以很好地结合在一起。获得。

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