• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Research >Interactive formation of Cu-rich precipitate, reverted austenite, and alloyed carbide during partial austenite reversion treatment for high-strength low-alloy steel
【24h】

Interactive formation of Cu-rich precipitate, reverted austenite, and alloyed carbide during partial austenite reversion treatment for high-strength low-alloy steel

机译：高强度低合金钢部分奥氏体回复处理过程中富铜沉淀物，还原奥氏体和合金碳化物的交互形成

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

We address the competitive precipitation and coprecipitation of three types of secondary phases, i.e., Cu-rich precipitates (CRPs), reverted austenite (RA), and alloyed carbide, in a high-strength low-alloy steel with austenite reversion treatment at 675 °C by using electron back-scatter diffraction, transmission electron microscopy, and atom probe tomography. There is a strong competitive diffusion of Ni and Cu participating in austenite reversion and Cu precipitation with the fact that no CRPs are detected in and around the RA. Meanwhile, there is also a strong competitive diffusion of austenite stabilizing element Ni and carbide-forming elements Cr and Mo into the pre-existing C-rich zone, leading to the formation of nonequilibrium alloyed carbide deviating from the stoichiometric composition. On the other hand, the alloyed carbide and CRPs provide constituent elements for each other and make the coprecipitation thermodynamically favorable. The knowledge on the interactive formation of these three features provides versatile access to tailor the distributional morphology of CRPs, RA, and alloyed carbide via a multistage heat treatment and thus realize their beneficial effect on strength and toughness.
机译：我们在高强度低合金钢中对奥氏体进行675°奥氏体回火处理，解决了富铜沉淀物（CRPs），还原奥氏体（RA）和合金碳化物这三种类型的第二相的竞争性沉淀和共沉淀。通过使用电子背散射衍射，透射电子显微镜和原子探针层析成像技术获得C。 Ni和Cu的竞争性扩散很强，参与了奥氏体的回复和Cu的析出，而在RA内和周围均未检测到CRP。同时，奥氏体稳定元素Ni和碳化物形成元素Cr和Mo竞争性扩散到预先存在的富C区，导致形成偏离化学计量组成的非平衡合金化碳化物。另一方面，合金碳化物和CRP彼此提供构成元素，并且使共沉淀在热力学上有利。关于这三个特征的交互形成的知识为通过多阶段热处理定制CRP，RA和合金碳化物的分布形态提供了多种途径，从而实现了它们对强度和韧性的有益作用。

著录项

  • 来源
    《Journal of Materials Research》 |2017年第12期|2325-2334|共10页
  • 作者

    Qingdong Liu; Chuanwei Li; Jianfeng Gu;

  • 作者单位

    Institute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China and Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiaotong University, Shanghai 200240, People's Republic of China;

    Institute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China;

    Institute of Materials Modification and Modelling, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China and Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiaotong University, Shanghai 200240, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 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