Carburizing law and microstructure of 23CrNi3Mo drill steel

Yong Ming Yan, Ya Zheng Liu, Le Yu Zhou, Sheng Xu, Guo Cun Wang

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

By solid carburizing, the carburizing law and microstructure of the 23CrNi3Mo steel was studied from the varying pattern of carbon concentration gradient, surface carbon content, carburizing layer depth and microstructure at different temperature and times. The result showed that, when the carburizing temperature was between 910~930 °C, the surface carbon concentration was higher, which was better for the proliferation of carbon atoms from the surface to the center. During the carburizing process, the surface carbon concentration should be controlled between 0.80%~0.90%, and when it was equal or over 0.90%, the remained austenite would be easily found during quenching process and the surface hardness would be decreased and the working life of drilling tools would be shortened.

Original languageEnglish
Pages (from-to)102-108
Number of pages7
JournalCailiao Kexue yu Gongyi/Material Science and Technology
Volume21
Issue number5
Publication statusPublished - 2013 Sep
Externally publishedYes

Keywords

  • 23CrNi3Mo
  • Carburizing layer depth
  • Remained austenite
  • Solid carburizing

ASJC Scopus subject areas

  • Materials Science(all)

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