Loss of coherency of the alpha/beta interface boundary in titanium alloys during deformation

被引：94

作者：

Zherebtsov, Sergey ^{[1
]}

Salishchev, Gennady ^{[1
]}

Semiatin, S. Lee ^{[2
]}

机构：

[1] Belgorod State Univ, Lab Bulk Nanostruct Mat, Belgorod 308015, Russia

[2] USAF, Res Lab, Mat & Mfg Directorate, AFRL RXLM, Wright Patterson AFB, OH 45433 USA

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 2010年 / 90卷 / 12期

关键词：

titanium alloys; interfaces; coherency; plastic deformation; FCC-BCC BOUNDARIES; STRUCTURAL LEDGES; PHASE BOUNDARIES; INTERPHASE BOUNDARY; CR ALLOY; MICROSTRUCTURE; ORIENTATION; EVOLUTION; BEHAVIOR; MECHANISMS;

D O I：

10.1080/09500839.2010.521526

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：903 / 914

页数：12

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