کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9796494 | 1514948 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tribologically transformed structure of titanium alloy (TiAl6V4) in surface fatigue induced by repeated impacts
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Under repeated impact solicitation in the elasto-plastic regime, Ti-6 wt.% Al-4 wt.% V (TiAl6V4) titanium alloy undergoes surface fatigue that leads to microstructural transformation and to wear. This tribologically transformed structure (TTS) appears after a given number of cycles, which depends on the impact parameters (kinetic energy, speed impact, indenter radius) and on the materials properties of the sample. Microstructural characterizations have been performed using different techniques i.e. optical microscopy, scanning electron microscopy, energy-dispersive X-ray fluorescence analyses. Transmission electron microscopy as well as nano-indentation tests reveal that the TTS structure has a typical grain size of less than 100 μm without preferential orientation and consists of α(hcp) phase with a very high (nano) hardness of 7.5 GPa.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 393, Issues 1â2, 25 February 2005, Pages 140-146
Journal: Materials Science and Engineering: A - Volume 393, Issues 1â2, 25 February 2005, Pages 140-146
نویسندگان
A.C. Sekkal, C. Langlade, A.B. Vannes,