کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7976402 | 1514694 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Local deformation mechanisms of two-phase Ti alloy
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Local deformation mechanisms of two-phase Ti alloy Local deformation mechanisms of two-phase Ti alloy](/preview/png/7976402.png)
چکیده انگلیسی
This paper describes a study of local deformation mechanisms in two-phase Ti alloy, Ti-6Al-2Sn-4Zr-2Mo, by performing in-situ micropillar compression tests. A colony microstructure was examined and select grains identified for examination were chosen with EBSD measurements. These grains were chosen to isolate individual slip systems within each test. Micropillars of tri-crystal (α-β-α) structure were fabricated from four determined regions, and compression tests were performed using a displacement-controlled nanoindenter set inside a SEM, with a constant displacement rate. The results show that the α/β morphology significantly affects the local deformation behaviour. For these colony structures, Schmid's law in general enables anticipation of local slip activity, but the presence and morphology of the β phase can significantly alter the apparent yielding point and work hardening response. The role of interfaces within these tri-crystal pillars is discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 649, 1 January 2016, Pages 39-47
Journal: Materials Science and Engineering: A - Volume 649, 1 January 2016, Pages 39-47
نویسندگان
Tea-Sung Jun, Giorgio Sernicola, Fionn P.E. Dunne, T. Benjamin Britton,