کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9796585 | 1514949 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of working, heat treatment, and aging on microstructural evolution and crystallographic texture of α, αâ², αⳠand β phases in Ti-6Al-4V wire
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of working, heat treatment, and aging on microstructural evolution and crystallographic texture of α, αâ², αⳠand β phases in Ti-6Al-4V wire Effects of working, heat treatment, and aging on microstructural evolution and crystallographic texture of α, αâ², αⳠand β phases in Ti-6Al-4V wire](/preview/png/9796585.png)
چکیده انگلیسی
Crystallographic texture was measured on Ti-6Al-4V wire at several stages of a process similar to that used in producing titanium products. As-received wire had a moderately strong fiber texture with prism plane normals aligned with the longitudinal wire axis. Wire specimens were cold worked by extrusion, solution heat-treated in the α + β phase field, water quenched, and then aged. Extrusion strengthened the as-received texture. After solutionization and quenching, a secondary fiber with basal plane normals aligned with the wire axis emerged at the expense of the initial texture, indicating that a strongly preferred variant selection occurred during quenching. After artificial aging, αⳠand β phases were present, but subsequent natural aging for a year led to elimination of αⳠand a reduction in the amount of the β phase. The effect of processing history on the orientations of α, αâ², αâ³, and β (focusing particularly on the effect of extrusion and solutionization time) is discussed in the context of the known physical metallurgy of titanium alloys. The selection of preferred variants in the α â β â α transformation cycles is discussed in relation to shears imposed in the β phase due to differential thermal expansion between misoriented α regions, causing 90° rotations by variant selection.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 392, Issues 1â2, 15 February 2005, Pages 403-414
Journal: Materials Science and Engineering: A - Volume 392, Issues 1â2, 15 February 2005, Pages 403-414
نویسندگان
L. Zeng, T.R. Bieler,