کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5460743 | 1516172 | 2017 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal expansion and residual stress behaviour of electron beam evaporated yttria stabilized zirconia films on Inconel-690 substrates
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermal expansion and residual stress behaviour of electron beam evaporated yttria stabilized zirconia films on Inconel-690 substrates Thermal expansion and residual stress behaviour of electron beam evaporated yttria stabilized zirconia films on Inconel-690 substrates](/preview/png/5460743.png)
چکیده انگلیسی
Nuclear vitrification components used in melter pot made of Ni-base superalloys degrade prematurely due to alloy-waste glass interaction and the formation of secondary precipitates. Deposition of cubic yttria stabilized zirconia (c-YSZ) coating has been recommended as a diffusion barrier material to delay or reduce the failure of the alloy and to enable an extended life. In the present work, c-YSZ films have been deposited on Inconel-690 substrate by electron beam evaporation technique at various substrate temperatures from 673Â K to 973Â K. The residual stress in the film surface and at the film/substrate interface was measured using grazing incidence x-ray diffraction (GIXRD) with various incidence angles. It was observed that the residual stress at the film/substrate interface region changes from tensile to compressive when the substrate temperature was increased from 673Â K to 973Â K during deposition. Furthermore, the thermal expansion coefficient (TEC) of Inconel-690 substrate and YSZ film coated Inconel-690 substrate were determined by high temperature (HTXRD) measurement in the temperature range of 298-1273Â K with 100Â K interval. The linear TECs of Inconel-690 and YSZ coated Inconel-690Â at 1273Â K were found to be 1.53Â ÃÂ 10â5Â Kâ1 and 6.04Â ÃÂ 10â6Â Kâ1, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 722, 25 October 2017, Pages 585-592
Journal: Journal of Alloys and Compounds - Volume 722, 25 October 2017, Pages 585-592
نویسندگان
A.M. Kamalan Kirubaharan, P. Kuppusami, Sujay Chakravarty, D. Ramachandran, Akash Singh,