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| COMPUTER SIMULATION FOR TRANSFORMATION FROM CUBIC PHASE TO TETRAGONAL ORTHORHOMBIC AND MONOCLINIC MARTENSITE Ⅱ. Orthorhombic as Martensite in Ti Alloys |
| LI Yongsen (Institute of Metal Research; Academia Sinica; Shenyang) |
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Cite this article:
LI Yongsen (Institute of Metal Research; Academia Sinica; Shenyang). COMPUTER SIMULATION FOR TRANSFORMATION FROM CUBIC PHASE TO TETRAGONAL ORTHORHOMBIC AND MONOCLINIC MARTENSITE Ⅱ. Orthorhombic as Martensite in Ti Alloys. Acta Metall Sin, 1986, 22(5): 121-127.
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Abstract In the light of the phenomenological theory, the crystallographic feature ofthe martensitic transformation in 10 binary and ternary Ti alloys including TiMo, Ti-Nb, Ti-Mo-Si, Ti-V-Al and Ti-6246 has been studied on the basis of the formulation and computer simulation given by the author in part Ⅰ of this article. The results indicate that the shear magnitude for the β→a″ transformation of these Ti alloys ranged from 0.03070 to 0.09551. The substructure of a″ martensite is made of the internal twins. The ratio of the twin thickness in a″ martensite of most Ti alloys is from 1 to 4. The volume change of β→a″ phase transformation in partial alloys is within 0.01. These features seem to identify the thermoelastic martensite transformation taking a crystallographic view.
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Received: 18 May 1986
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5 #12
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