کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9795623 | 1514932 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cavitation and failure in a fine-grained Inconel 718 alloy having potential superplastic properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Experiments were conducted to evaluate the failure behavior and the cavitation characteristics of an Inconel 718 alloy with a potential for superplastic forming. Tensile testing was performed on the as-received alloy at a temperature of 950 °C and using initial strain rates from 10â4 to 10â2 sâ1. All specimens were pulled to failure and then examined using optical microscopy and a quantitative image analysis facility. The results show evidence for extensive necking at a strain rate of 10â2 sâ1 but there is less necking and more internal cavitation at the lowest strain rate of 10â4 sâ1. Quantitative measurements of internal cavitation show the area fraction of cavities and the average cavity area both increase with increasing strain and with decreasing strain rate. It is concluded that the cavities grow initially by diffusion but there is an important additional contribution from cavity interlinkage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 410â411, 25 November 2005, Pages 130-133
Journal: Materials Science and Engineering: A - Volumes 410â411, 25 November 2005, Pages 130-133
نویسندگان
Yi Huang, Terence G. Langdon,