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A study on controlled cooling process for making bainitic ductile iron

中国铸造Issue(2)：29-31,3.

A study on controlled cooling process for making bainitic ductile iron

作者信息

1. Machine College, Kunming University of Science and Technology, Kunming ,650093, Yunnan, P. R. China;Machine College, Kunming University of Science and Technology, Kunming ,650093, Yunnan, P. R. China;Machine College, Kunming University of Science and Technology, Kunming ,650093, Yunnan, P. R. China
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摘要

Abstract

In the present research, TTT curve of bainitic ductile iron under the condition of controlled cooling was generated. The cooling rate of grinding ball and its temperature distribution were also measured at the same time. It can be concluded that the bainitic zone of TTT curve is separated from the pearlitic zone. As compared to the water-quenching condition, more even cooling rate and temperature distribution can be achieved in the controlled cooling process. The controlled cooling can keep away from pearlitic zone in the high temperature cooling stage and produce similar results to the process of traditional isothermal cooling with a low cooling rate in the low temperature cooling stage.

关键词

controlled cooling/grinding ball/ductile iron/bainitic ductile iron/austenite-ferrite ductile iron/bainite

Key words

controlled cooling/grinding ball/ductile iron/bainitic ductile iron/austenite-ferrite ductile iron/bainite

分类

矿业与冶金

引用本文复制引用

..A study on controlled cooling process for making bainitic ductile iron[J].中国铸造,2004,(2):29-31,3.

中国铸造

ISSN：1672-6421

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