کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1624984 1516420 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical and microstructural changes of Ti and Ti–6Al–4V alloy induced by the absorption and desorption of hydrogen
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Mechanical and microstructural changes of Ti and Ti–6Al–4V alloy induced by the absorption and desorption of hydrogen
چکیده انگلیسی

Vickers microhardness tests and X-ray diffraction analysis (XRD) were used to study the mechanical and the structural properties of Ti and the Ti–6Al–4V alloy during the hydrogen absorption–desorption process. Ti and the Ti–6Al–4V alloy were hydrogenated at different temperatures (150, 300, 450, 500, 550, 600, 650 and 750 °C), reaching maximum hydrogen concentration of (2.95 ± 0.24) × 1022 H/cm3 for Ti and (2.82 ± 0.22) × 1022 H/cm3 for the alloy. Hardness of both metals increased with hydrogen absorption, but a decrease in the Vickers microhardness number was observed in both materials when they started to loose hydrogen. The XRD analysis showed changes in the crystal size in those samples with large amounts of hydrogen, as well as changes in crystal orientation in the Ti–6Al–4V alloy induced by the hydrogen absorption.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 457, Issues 1–2, 12 June 2008, Pages 216–220
نویسندگان
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