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| Orientation Relationship Between Bainitic Ferrite and Retained Austenite |
| GU Ying-ni1,LI Jing-jing2,MENG Fan-yan3,JIANG Jiang3,LI Feng-zhao3，MENG Xiang-min4 |
1. School of Mechanical Engineering, University of Jinan, Jinan 250022, Shandong, China
2. Synopsys Inc., San Jose California 94043, USA
3. School of Materials Science and Engineering,Shandong University, Jinan 250061, Shandong, China
4. Key Laboratory of Photochemical and Optoelectronic Materials, Chinese Academy of Science, Beijing 100190, China |
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Abstract The orientation relationship between bainitic ferrite and retained austenite in bainitic steels were determined with analysed transmission electronic microscope (TEM) and high resolution transmission electronic microscope (HRTEM). The results show that there are three kinds of orientation relationships between bainitic ferrite and retained austenite: namely K-S, ［110］γ′//［111］α, (111)γ′//(110)α ; N-W, ［110］γ′//［001］α, (111)γ′//(110)α and G-T, ［112］γ′//［110］α,（111）γ′//(110)α orientation relationships. The high resolution images reveal that the interface of two phases is not straight and that there are series of edge dislocation and small structure-ledges, and it is not reveal continuous stringent coherent relationship.
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Received: 21 February 2013
Published: 25 November 2013
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2013, Vol. 48 
