HIGH-TEMPERATURE TRANSMISSION ELECTRON-MICROSCOPY INSITU STUDY OF LOWER BAINITE CARBIDE PRECIPITATION

被引：26

作者：

KANG, MK

SUN, JL

YANG, QM

机构：

[1] Department of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an

[2] Kuming Institute of Technology, Kuming, Yunnan

[3] Zhejiang University, Hangzhou, Zhejiang

来源：

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1990年 / 21卷 / 04期

关键词：

D O I：

10.1007/BF02656569

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In situ observation of the bainite carbide precipitation processes in 40CrMnSiMoV steel by means of high-temperature transmission electron microscopy (TEM) is conducted. It is evident that carbides can precipitate either in bainitic ferrite or from austenite when carbide-free bainite (meta-bainite) obtained by isothermal transformation is tempered at higher temperatures. In view of the quantity of carbides precipitated from ferrite in combination with the result of an X-ray diffraction analysis of the bainitic ferrite carbon content, it can be concluded that bainitic ferrite growth involves supersaturation of carbon content to some degree. © 1990 The Metallurgical of Society of AIME.

引用

页码：853 / 858

页数：6

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