LEDGE STRUCTURE AT BROAD FACES OF FERRITE PLATES IN LOWER BAINITE

Acta Metall Sin

1990, Vol. 26

Issue (6): 5-9 DOI:

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LEDGE STRUCTURE AT BROAD FACES OF FERRITE PLATES IN LOWER BAINITE

JIN Qiang;FANG Hongsheng;CAO Jianjun;ZHENG Yankang;CHEN Xiuyun Tsinghua University; Beijing

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JIN Qiang;FANG Hongsheng;CAO Jianjun;ZHENG Yankang;CHEN Xiuyun Tsinghua University; Beijing. LEDGE STRUCTURE AT BROAD FACES OF FERRITE PLATES IN LOWER BAINITE. Acta Metall Sin, 1990, 26(6): 5-9.

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Abstract The ferrite/austenite interfacial structure in lower bainite has beenstudied in a hypereutectoid steel by means of electron microscopy. It is found thatmobile growth ledges and superledges and their three-dimensional morphologies existat the broad faces of ferrite plates in lower bainite, and that growth ledges can alsoevolve from structural ledges. These provide evidence to the ledge growth mechanismof lower bainite.

Key words: bainitic ferrite ledge mechanism broad face

Received: 18 June 1990

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1990/V26/I6/5

1 Rigsbee J M, Aaronson H I. Acta Metall, 1979; 27: 365
2 Jin Qiang, Fang Hongsheng. Metall Trans, 1990; 11, in press
3 Hall M G, Aaronson H I, Kinsman K R. Surf Sci, 1972; 31: 257
4 Weatherly G C. Acta Metall, 1971; 19: 181!

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