• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials & design >Comparing microstructure and mechanical properties of AISI D2 steel after bright hardening and oil quenching
【24h】

Comparing microstructure and mechanical properties of AISI D2 steel after bright hardening and oil quenching

机译：光亮淬火和油淬后AISI D2钢的组织和力学性能比较

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

D2 is a high carbon-high chromium cold work tool steel. The main problems of hardening treatment of this steel include risk of crack distortion and formation because of thermal shocks induced by oil quenching (conventional hardening treatment for D2 steel). For this purpose, in this study, the possibility of improving microstructure and mechanical properties of AISI D2 steel and decreasing the risk of cracking by bright hardening in comparison with oil quenching was investigated. The quenchant used in bright hardening included 60% of KOH and 40% of NaOH. The bright-hardened samples showed no cracks during their heat treatment, which was in contrast to oil-quenched ones. Moreover, microstructural examinations of the samples revealed that, compared with oil-quenched samples, quenching in hot alkaline salt bath resulted in finer and more uniform distribution of carbides and also lower amount of retained aus-tenite in the matrix. Different microstructures caused the samples to possess different mechanical properties; e.g. bright-hardened samples possessed higher impact toughness (3.7 J) and tensile strength (1764 MPa) as well as higher level of hardness (792 HV) than those of oil-quenched samples, which were 3.2 J, 1608 MPa and 710 HV, respectively.
机译：D2是高碳高铬冷作工具钢。这种钢的淬火处理的主要问题包括由于油淬火引起的热冲击（D2钢的常规淬火处理）引起的裂纹变形和形成风险。为此，在本研究中，与油淬火相比，研究了改善AISI D2钢的显微组织和力学性能并降低因光亮硬化而开裂的风险的可能性。光亮硬化中使用的淬火剂包括60％的KOH和40％的NaOH。光亮硬化的样品在热处理过程中没有出现裂纹，这与油淬火的样品相反。而且，样品的微观结构检查显示，与油淬火的样品相比，在热碱性盐浴中淬火可以使碳化物分布更细，更均匀，并且在基体中的残留奥氏体数量也更少。不同的微观结构使样品具有不同的机械性能。例如光亮硬化的样品比油淬火后的样品分别具有3.2 J，1608 MPa和710 HV的冲击韧性（3.7 J）和拉伸强度（1764 MPa）以及更高的硬度（792 HV） 。

著录项

  • 来源
    《Materials & design》 |2014年第2期|1049-1055|共7页
  • 作者

    H. Torkamani; Sh. Raygan; J. Rassizadehghani;

  • 作者单位

    School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran;

    School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran;

    School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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