东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2003, Vol. 24 ›› Issue (2): 147-150.DOI: -

• 论著 • 上一篇    下一篇

Fe-V合金碳化物析出型渗碳(CDC)组织

王殿梁;刘杨;郝士明;李洪晓   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院 辽宁沈阳110004
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2003-02-15 发布日期:2013-06-23
  • 通讯作者: Wang, D.-L.
  • 作者简介:-
  • 基金资助:
    辽宁省科学技术基金资助项目 ( 9810 30 0 30 1)

Fe-V alloy microstructure of carbide dispersion carburization

Wang, Dian-Liang (1); Liu, Yang (1); Hao, Shi-Ming (1); Li, Hong-Xiao (1)   

  1. (1) Sch. of Mat. and Metall., Northeastern Univ., Shenyang 110004, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2003-02-15 Published:2013-06-23
  • Contact: Wang, D.-L.
  • About author:-
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摘要： 通过金相显微镜、扫描电子显微镜及X射线分析研究了Fe V合金CDC处理后表层的相组成、渗层组织和碳的扩散行为·结果表明所有Fe V合金渗层组织由表及里依次为γ +V4 C3 ,α +V4 C3 及α ,最表层碳化物的尺寸为 2 5 0nm ,随渗层的深入碳化物颗粒有所粗化 ,在α相区碳化物的尺寸达 2 5 μm ;CDC处理得到的奥氏体区的厚度与渗碳时间的平方根成正比 ,碳的扩散速度随合金质量分数的增加而降低·

关键词: 碳化物析出型渗碳, 碳势, 碳化物, 扩散, Fe-V合金, V4C3

Abstract: The phase of Fe-V alloy means of OM and SEM was investigated. The results show that γ+ V4C3, α+V4C3 and α are distributed with dispersion. The outmost CDC layer dimension is 250 nm deep and carburizing dimension becomes coarsening. Carburizing dimension reaches 2.5μm in the α phase. The main reason is that the carburized grown different rate in the γ and γ phases. Austenitic thickness treated by CDC is proportional to the square root of cementite time. The hardness of Fe-V alloy increases evidently after CDC, and the hardened layer becomes thin with the increase of V content.

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