کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5460373 | 1516194 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lattice parameter instabilities during multi-phase precipitation in Alloy 693
ترجمه فارسی عنوان
ناپایداری پارامترهای ریز در رسوب چند فاز در آلاینده 693
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
Ni-base superalloy Alloy 693 exhibits mono-modal, bi-modal and tri-modal distribution of γâ²-phase precipitates depending upon heat treatments and subsequent cooling rates employed. This multimodal distribution of γâ²-phase particles is a consequence of their formation during isothermal and continuous cooling of the alloy. Further, γ' particles that form under isothermal and continuous cooling are known to exhibit varying phase chemistry. This difference in their chemistry is expected to alter their lattice parameters. Aim of the present work is to study the variation in lattice parameters of γâ²- phase particles that form during isothermal and continuous cooling. These studies have been carried out on the basis of Rietveld refinement of neutron diffraction data in conjunction with scanning electron microscopy and energy dispersive spectroscopy. This work also brings out the effect of precipitation of a chromium rich phase on the lattice parameters of γ- and γâ²- phases during prolonged annealing of the alloy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 700, 5 April 2017, Pages 149-154
Journal: Journal of Alloys and Compounds - Volume 700, 5 April 2017, Pages 149-154
نویسندگان
Shabana Khan, S.D. Kaushik, A. Verma, J.B. Singh, V. Siruguri, D. Srivastava,