کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1573159 | 1514670 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Gum Metal thin films obtained by magnetron sputtering of a Ti-Nb-Zr-Ta target
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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: Gum Metal thin films obtained by magnetron sputtering of a Ti-Nb-Zr-Ta target Gum Metal thin films obtained by magnetron sputtering of a Ti-Nb-Zr-Ta target](/preview/png/1573159.png)
چکیده انگلیسی
TNTZ quaternary superelastic coatings with a beta structure were successfully deposited by magnetron sputtering of a Ti-Nb-Zr-Ta target. In this work, we discuss the effects of argon pressure and negative substrate bias voltage on the microstructure, morphology, texture, mechanical properties and superelastic behavior of these coatings. The results show that the texture is random at high deposition pressure and it becomes {110} at the lowest deposition pressure (i.e. 0.2Â Pa). Applying negative bias voltage causes the disappearance of {110} texture and promotes the appearance of {100} and {111} textures. The texture evolution is related to the ion bombardment of the growing film and to the surface mobility of adatoms. The highest hardness and Young's modulus are obtained for the Gum Metal (GM) film deposited at the lowest deposition pressure (i.e. 0.2Â Pa) and a bias of â200Â V. The Evolution of the mechanical properties is discussed as a function of the film density, the compressive stress and grains' size changes. It was found that the film deposited at 0.2Â Pa and floating potential presents the greatest depth recovery ratio. It is due to the fact that the film is dense and its texture is {110}. The negative bias voltage seems to have an unfavorable effect on the superelasticity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 673, 15 September 2016, Pages 492-502
Journal: Materials Science and Engineering: A - Volume 673, 15 September 2016, Pages 492-502
نویسندگان
S. Achache, S. Lamri, A. Alhussein, A. Billard, M. François, F. Sanchette,