کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1662100 | 1517700 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructural morphology of electrospark deposition layer of a high gamma prime superalloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
High gamma prime superalloy is known for its high susceptibility to welding cracking. However, for these alloys a fusion welding or deposition of crack-free is always expected for repair and refurbishment of their components. On the other hand, electro-spark deposition, though not a new process, microstructural morphology of electro-spark deposited alloy is yet a question of the hour. In this paper, thick deposition layer of a high gamma prime superalloy free from cracking was obtained and its microstructural growth characteristic was investigated. The result shows that countless single-pulse deposition spots randomly overlap with each other to make up the thick deposition layer. Grains grow vertically passing through layers and form long columnar grains with a preferential growth orientation along the build-up direction. The microstructural morphology of the deposited layers shows growing characteristics of cellular structure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 201, Issues 3â4, 5 October 2006, Pages 691-698
Journal: Surface and Coatings Technology - Volume 201, Issues 3â4, 5 October 2006, Pages 691-698
نویسندگان
Yu-jiang Xie, Mao-cai Wang,