NEW VIEW ABOUT BAINITIC TRANSFORMATION IN STEEL

Acta Metallurgica Sinica (English Letters) ›› 1999, Vol. 12 ›› Issue (3): 229-234.

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NEW VIEW ABOUT BAINITIC TRANSFORMATION IN STEEL

Received:1999-06-25 Revised:1999-06-25 Online:1999-06-25 Published:2009-10-10

Abstract

Abstract: ZBainitic transformation is analyzed in detail according to the factors such as morphology,crystallography,mechanical property of bainite and transformation kinetics,and conclusion is drawn that bainitic transformation is controlled by displacive mechanism and self-fempering of displacive microstructure.That is to say,bainite is the product of such procedure during which undercooled austemite first transforms into one certain displacive microstructure by displacive mechanism and then this microstructure experiences self-fempering.With this idea,several questions,which cannot be illustrated only by displacive transformation mechanism,can be explained successfully.

Key words: bainitic transformation, self-tempering, displacive mechanism

C.C. Liu; Z. Liu and G.X. Chen (Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China)(Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China)(Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China). NEW VIEW ABOUT BAINITIC TRANSFORMATION IN STEEL[J]. Acta Metallurgica Sinica (English Letters), 1999, 12(3): 229-234.

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NEW VIEW ABOUT BAINITIC TRANSFORMATION IN STEEL

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