...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing >Effects of deformation and boron on microstructure and continuous cooling transformation in low carbon HSLA steels
【24h】

Effects of deformation and boron on microstructure and continuous cooling transformation in low carbon HSLA steels

机译：变形和硼对低碳HSLA钢组织和连续冷却转变的影响

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 continuous-cooling-transformation (CCT) diagram and continuous cooled microstructure were investigated for low carbon (0.05 wt.% C) high strength low alloy steels with/without boron. Microstructures observed in continuous cooled specimens were composed of pearlite, quasi-polygonal fertile, granular bainite, acicular ferrite, bainitic ferrite, lower bainite, and martensite depending on cooling rate and transformation temperature. A rapid cooling rate depressed the formation of pearlite and quasi-polygonal ferrite, which resulted in higher hardness. However, hot deformation slightly increased transformation start temperature, and promoted the formation of pearlite and quasi-polygonal ferrite. Hot deformation also strongly promoted the acicular ferrite formation which did not form under non-deformation conditions. Small boron addition effectively reduced the formation of pearlite and quasi-polygonal ferrite and broadened the cooling rate region for bainitic ferrite and martensite.
机译：研究了含/不含硼的低碳（0.05 wt。％C）高强度低合金钢的连续冷却转变（CCT）图和连续冷却的组织。在连续冷却的试样中观察到的显微组织由珠光体，准多边形可熔体，粒状贝氏体，针状铁素体，贝氏体铁素体，下贝氏体和马氏体组成，具体取决于冷却速率和相变温度。快速的冷却速度抑制了珠光体和准多边形铁素体的形成，从而提高了硬度。但是，热变形稍微提高了转变开始温度，并促进了珠光体和准多边形铁素体的形成。热变形还强烈促进了针状铁素体的形成，而在非变形条件下则不会形成。少量添加硼有效地减少了珠光体和准多边形铁素体的形成，并扩大了贝氏体铁素体和马氏体的冷却速率区域。

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