کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10628554 | 990390 | 2005 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of the effect of δ phase on hydrogen embrittlement of Inconel 718 by notch tensile tests
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
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چکیده انگلیسی
This article describes the effect of δ phase on the hydrogen embrittlement (HE) sensitivity of Inconel 718 conducted by notch tensile tests. Notch tensile specimens were subjected to proper heat treatment to produce various precipitation morphologies of δ phase. Hydrogen was charged into the tensile specimens before tensile tests via a cathodic charging process. The loss of notch tensile strength (NTS) due to hydrogen charging has been used as a criterion to evaluate the hydrogen embrittlement sensitivity. The study suggests that δ phase has deleterious effect on NTS. Fracture origins of hydrogen-charged specimens locate near the notch surfaces. The loss of NTS caused by hydrogen charging can be greatly decreased by dissolving δ. δ-free Inconel 718 has been proposed for applications in hydrogen environments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 47, Issue 2, February 2005, Pages 355-367
Journal: Corrosion Science - Volume 47, Issue 2, February 2005, Pages 355-367
نویسندگان
Liufa Liu, Chunquan Zhai, Chen Lu, Wenjiang Ding, Akio Hirose, Kojiro F. Kobayashi,