Twinning behavior of orthorhombic-α” martensite in a Ti-7.5Mo alloy
Source abstract
Abstract
Deformation microstructure of orthorhombic-α" martensite in a Ti-7.5Mo (wt.%) alloy was investigated by tracking a local area of microstructure using scanning electron microscopy, electron back-scattered diffraction, and transmission electron microscopy. The as-quenched α" plates contain {111}α"-type I transformation twins generated to accommodate transformation strain from bcc-β to orthorhombic-α" martensite. Tensile deformation up to strain level of 5% induces {112}α"-type I deformation twins. The activation of {112}α"-type I deformation twinning mode is reported for the first time in α" martensite in β-Ti alloys. {112}α"-type I twinning mode was analyzed by the crystallographic twinning theory by Bilby and Crocker and the most possible mechanism of atomic displacements (shears and shuffles) controlling the newly reported {112}α"-type I twinning were proposed.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Titanium Alloys Microstructure and Properties · Intermetallics and Advanced Alloy Properties · High Entropy Alloys Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Research Center for Structural Materials, National Institute for Materials Science, Tsukuba, Ibaraki, Japan
School of Materials Science and Engineering, Dalian University of Technology, Dalian, P.R. China
Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
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