• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISIJ international >Comparison of cold formability of cold drawn non-heat-treated steels having similar strength
【24h】

Comparison of cold formability of cold drawn non-heat-treated steels having similar strength

机译：具有相似强度的冷拔非热处理钢的冷成形性能比较

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 cold formability of the drawn non-heat-treated steels, i.e. dual phase (DP) steel, low Si steel and ultra low carbon bainitic (ULCB) steel, was examined in terms of the deformation resistance and the forming limit. The present investigation was aimed at elucidating the effect of drawing on the cold formability of non-heat-treated steels which is directly affected by drawing since no heat treatment are involved during forming processes for them. A special care was taken for the present steels to exhibit the similar strength after drawing, so eliminating the strength effect. The present steels after drawing revealed the elastic-near perfect plastic behavior in compression. After drawing, the low Si steel exhibited the lowest deformation resistance estimated by the absorbed energy during deformation. In case of the forming limit in terms of the critical strain under which no cracking occurs during the upsetting test of the drawn steels, the low Si steel and the ULCB steel were better than the conventional heat-treated steel. Accordingly, among several non-heat-treated steels which can replace the conventional heat-treated steel as forging steels, the low Si steel seems to exhibit the best performance if they have the similar strength. The compressive deformation behavior of the present drawn non-heat-treated steels was discussed in association with the strain hardened state and the Bauschinger effect developed by drawing. In addition, their cold formability was explained by the plastic incompatibility between the constituent phases of each steel.
机译：从抗变形性和成形极限的角度，研究了拉伸非热处理钢即双相（DP），低硅钢和超低碳贝氏体（ULCB）钢的冷成形性。本研究旨在阐明拉拔对非热处理钢的冷成形性的影响，该影响直接受到拉拔的影响，因为在其成形过程中不进行热处理。特别注意本发明的钢在拉拔后表现出相似的强度，从而消除了强度影响。拉拔后的本发明钢显示出压缩时的弹性近乎完美的塑性行为。拉拔后，低Si钢表现出最低的变形阻力，该变形阻力是根据变形过程中的吸收能量估算的。在拉拔钢的setting粗试验过程中在不发生裂纹的临界应变的成形极限的情况下，低Si钢和ULCB钢优于常规的热处理钢。因此，在几种可以代替传统的热处理钢作为锻造钢的非热处理钢中，低硅钢如果具有相似的强度，则似乎表现出最好的性能。结合应变硬化状态和拉深产生的鲍辛格效应，对本发明拉深非热处理钢的压缩变形行为进行了讨论。另外，它们的冷成形性可以通过每种钢的组成相之间的塑性不相容来解释。

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