کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7969026 | 1514344 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Response relationship between loading condition and corrosion fatigue behavior of nickel-aluminum bronze alloy and its crack tip damage mechanism
ترجمه فارسی عنوان
رابطه پاسخ بین شرایط بارگذاری و رفتار خستگی خوردگی آلومینیوم برنز نیکل و آلومینیوم و آسیب دیدگی مکانیکی آن
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کلمات کلیدی
نیکل برنز آلومینیوم، رفتار خستگی خوردگی، اثرات محیطی، فرکانس بارگیری، نوک کراک،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
Corrosion fatigue is one of the major forms for nickelâaluminum bronze alloy used in marine propeller. It is greatly important to understand the corrosion fatigue behavior of nickelâaluminum bronze alloy in seawater for the purpose of improving the service life of marine equipment. In this study, corrosion fatigue crack growth rate of nickelâaluminum bronze alloy in 3.5% NaCl solution was tested under various stress intensity factors, stress ratios and loading frequencies to reveal its corrosion fatigue mechanism. The results show that corrosion environment significantly accelerates the crack growth and decreases the corrosion fatigue threshold, which is attributed to the corrosion reactions between the metals of crack tip and corrosive medium. Among the various factors, loading frequency has more predominant influence on the corrosion fatigue crack growth rate of nickelâaluminum bronze alloy, which can be rationally explained by the hydrogen embrittlement mechanism. Additionally, in the process of corrosion fatigue crack growth, the acidification and the dealumination would occur at the crack tip, resulting in the corrosion dissolution of κ phases and the deterioration in mechanical properties of crack tip.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 144, October 2018, Pages 356-367
Journal: Materials Characterization - Volume 144, October 2018, Pages 356-367
نویسندگان
Yang Ding, Yuting Lv, Bingjie Zhao, Yuanfei Han, Liqiang Wang, Weijie Lu,