کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7870634 | 1509187 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of strain and strain-induced αâ²-martensite on passive films in AISI 304 austenitic stainless steel
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
In this paper, the effects of strain and heat treatment on strain-induced αâ²-martensite of AISI 304 stainless steel tubes were measured by X-ray diffraction. Moreover, the effects of strain and content of αâ²-martensite on passivated property on the surface of the material in borate buffer solution were evaluated by electrochemical technique. The results showed that the volume fraction of αâ²-martensite increased gradually with the increase of tensile strain for as-received and solid solution samples. However, αâ²-martensite in as-received sample was more than that in the solid solution sample. The electrochemical impedance spectroscopy results showed that the solid solution treatment improved corrosion resistance of the steel, especially for samples with small strain. Moreover, acceptor densities were always higher than donor densities for as-received and solid solution samples. With the increase of strain, the increase tendency of acceptor density was more significant than that of donor density. We also found that the total density of the acceptor and donor almost increased linearly with the increase of αâ²-martensite. The present results indicated that the increased acceptor density might lead to the decreased corrosion resistance of the steel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 34, 1 January 2014, Pages 484-490
Journal: Materials Science and Engineering: C - Volume 34, 1 January 2014, Pages 484-490
نویسندگان
Lv Jinlong, Luo Hongyun,