• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Nan, Rong (Nan, Rong.) | Fu, Hanguang (Fu, Hanguang.) (学者:符寒光) | Yang, Penghui (Yang, Penghui.) | Lin, Tian (Lin, Tian.) | Lei, Yongping (Lei, Yongping.) (学者:雷永平)

收录:

EI Scopus SCIE

摘要:

In the present study, the authors investigated the effect of the austenitizing temperature (860 to 1020 degrees C) on the microstructure evolution, hardness, wear resistance and corrosion resistance of Cu-bearing carbidic austempered ductile iron (CADI) by means of an optical microscope (OM), a scanning electron microscope (SEM), a Rockwell hardness tester, a microhardness tester, an X-ray diffractometer (XRD), a block-on-ring wear testing machine and electrochemical tester. The results show that with an increase in the austenitizing temperature, the amount of acicular ferrite decreases, size expands, and the volume fraction of high-carbon austenite increases gradually as does carbon content. Part of the carbide dissolves into the matrix, and the amount is significantly reduced. The hardness of Cu-bearing CADI first increases and subsequently decreases, and the hardness is highest at 940 degrees C. With an increase in austenitizing temperature, the wear loss of Cu-bearing decreases and its wear resistance increases. When the austenitizing temperature is 940 degrees C, wear loss is lowest and wear resistance is optimal. Electrochemical corrosion experiments show that as the austenitizing temperature increases, the corrosion potential of Cu-bearing CADI is slightly improved, the corrosion current density is gradually reduced, and the corrosion resistance of Cu-bearing CADI is improved. Considered comprehensively, the austenitizing temperature of Cu-bearing CADI should be determined to be 940 degrees C.

关键词:

corrosion resistance austenitizing temperature Cu-bearing CADI microstructure evolution wear resistance

作者机构:

  • [ 1 ] [Nan, Rong]Beijing Univ Technol, Beijing, Peoples R China
  • [ 2 ] [Fu, Hanguang]Beijing Univ Technol, Beijing, Peoples R China
  • [ 3 ] [Yang, Penghui]Beijing Univ Technol, Beijing, Peoples R China
  • [ 4 ] [Lin, Tian]Beijing Univ Technol, Beijing, Peoples R China
  • [ 5 ] [Lei, Yongping]Beijing Univ Technol, Beijing, Peoples R China

通讯作者信息:

  • 符寒光

    [Fu, Hanguang]Beijing Univ Technol, Sch Mat Sci & Engn, 100 Pingle Carden, Beijing 100124, Peoples R China

电子邮件地址:

查看成果更多字段

相关关键词:

来源 :

MATERIALS TESTING

ISSN: 0025-5300

年份: 2019

期: 9

卷: 61

页码: 865-874

2 . 5 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:211

被引次数:

WoS核心集被引频次: 7

SCOPUS被引频次: 7

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 0

在线人数/总访问数:195/4687791
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司