Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5456751 | Materials Science and Engineering: A | 2017 | 6 Pages |
Abstract
The increases of the yield and ultimate strengths (a) of the aged alloy at 200-600 °C is accompanied by a more than doubled due to formation of ordered phases with Pt2Mo-type structure ((b) and (c)). Moreover, it is found that the Portevin-Le Châtelier (PLC) effect ((d) and (e)) can occur in the as-quenched and aged samples containing ordered phases at 400-700 °C. The pinning-unpinning between dislocations cross slip and solute atoms lead to the PLC effect in as-quenched samples at 400-700 °C, while both dynamic strain aging (DSA) and twinning of matrix are responsible for the PLC effect in aged sample during plastic deformation at 600 °C.230
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Authors
Liang Yuan, Xiangyu Gao, Xiaoqing Zhang, Yan'an Yang,