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
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.
Kurdjumov G V, Sachs G Ztsch Physik[J].1930,64: 325-343.
[1]
Kurdjumov G V, Sachs G Ztsch Physik[J].1930,64: 325-343.
[2]
Nishiyama Z. Science Report[J]. Tohoku lmp University.1934, 23: 325.
[2]
Nishiyama Z. Science Report[J]. Tohoku lmp University.1934, 23: 325.
[3]
Smith G V, Mehl R F. Lattice Relationship in Decomposition of Austenite to Pearlitc, Bainite, and Martensite[M]. Trans. Am Inst Min Metall Engrs. 1942, 150: 211-226.
[3]
Smith G V, Mehl R F. Lattice Relationship in Decomposition of Austenite to Pearlitc, Bainite, and Martensite[M]. Trans. Am Inst Min Metall Engrs. 1942, 150: 211-226.
[4]
Pitsch W. Acta Materialia[J].1962, 10: 897-900.
[4]
Pitsch W. Acta Materialia[J].1962, 10: 897-900.
[5]
黄孝英. 透射电子显微学[M]。北京：上海科学技术出版社，1987, 252.
[5]
黄孝英. 透射电子显微学[M]。北京：上海科学技术出版社，1987, 252.
[6]
Hoekstrs S. An accurate and general method of determing habit planes and Orientation in bainitic steels and verification of the IPS theory. Proc Int Conf on Solid→Solid phase transfomation[C]. TMS-AIME. 1982, 1017-1021.
[6]
Hoekstrs S. An accurate and general method of determing habit planes and Orientation in bainitic steels and verification of the IPS theory. Proc Int Conf on Solid→Solid phase transfomation[C]. TMS-AIME. 1982, 1017-1021.
2013, Vol. 48 
