• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ISIJ international >Influence of Low-temperature Heat Treatment after Deformation on Hydrogen Entry into Steel Sheets
【24h】

Influence of Low-temperature Heat Treatment after Deformation on Hydrogen Entry into Steel Sheets

机译：变形后的低温热处理对氢进入钢板的影响

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

To ensure safety against delayed fracture caused by hydrogen embrittlement under service environ ments of steel sheets for auto body parts used after forming and paint baking, it is quite important to understand hydrogen entry into steels under the service environments, which could be influenced by part processing parameters such as forming and the following paint baking conditions. In this study, the influ ence of temperature and holding time in low-temperature heat treatment after deformation on hydrogen entry into steel sheets was investigated in detail, and the mechanism of the decrement of hydrogen entry due to the heat treatment was discussed using 0.2%C steel, 0.002%C steel and IF steel. The steels were 10-20% cold rolled to introduce plastic strain, then heat-treated at 50-170℃ for 0.2-20160 min, followed by immersion in pH 1-HCI for at most 72 h to introduce hydrogen into the steels. Hydrogen entry into the steels during immersion in pH 1-HCI increased with the cold rolling and decreased with the following low temperature heat treatment, and as the heating temperature and holding time increased, hydrogen entry during immersion in HCI decreased. This indicates hydrogen trapping sites, which were introduced by the cold rolling, decreased due to the low-temperature heat treatment. From a comparison of steels with and without solute carbon atoms, the decrement of hydrogen trapping sites due to the low-temperature heat treatment was attributed to both the decrement of vacancies and occupation of hydrogen trapping sites around dislocations by interstitial solute atoms such as carbon.
机译：为了确保在成型和喷漆后使用的车身零件钢板使用环境下，防止氢脆引起的延迟断裂的安全性，了解氢在使用环境下进入钢中非常重要，因为氢会受到零件加工的影响成型和随后的油漆烘烤条件等参数。在这项研究中，详细研究了温度和保持时间对变形后低温热处理对钢板中氢进入的影响，并使用0.2％讨论了热处理引起的氢进入减少的机理。 C钢，0.0​​02％C钢和IF钢。将钢进行10-20％的冷轧以引入塑性应变，然后在50-170℃下热处理0.2-20160分钟，然后在pH 1-HCl中浸泡最多72小时，以将氢引入钢中。浸入pH 1-HCl的过程中，氢的进入随着冷轧的增加而增加，随后的低温热处理则降低；随着加热温度和保温时间的增加，浸入HCl的氢的进入量减少。这表明由于低温热处理，由冷轧引入的氢捕获位点减少了。通过比较具有和没有溶质碳原子的钢，低温热处理导致的氢俘获位点的减少既归因于空位的减少，也包括由于碳等间隙溶质原子占据的位错周围的氢俘获位点。

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