期刊
PHILOSOPHICAL MAGAZINE LETTERS
卷 90, 期 12, 页码 903-914出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500839.2010.521526
关键词
titanium alloys; interfaces; coherency; plastic deformation
类别
资金
- Federal Agency for Science and Innovations [02.740.11.0510]
The loss of coherency of interphase boundaries in two-phase titanium alloys during deformation was analyzed. The energy of the undeformed interphase boundary was first determined by means of the van der Merwe model for stepped interfaces. The subsequent loss of coherency was ascribed to the increase of interphase energy due to absorption of lattice dislocations and was quantified by a relation similar to the Read-Shockley equation for low-angle boundaries in single-phase alloys. It was found that interphase boundaries lose their coherency by a strain of approximately 0.5 at T = 800 degrees C.
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