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Kinetic and Morphological Study of Hot Corrosion of Rene 80 Nickel Based Super Alloy
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نویسنده
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Rajabi Khorrami M. ,Ashrafizadeh F. ,Saatchi A.
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منبع
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journal of applied chemical research - 2009 - دوره : 8 - شماره : 4 - صفحه:31 -38
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چکیده
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In this work, kinetic and tncrpholcgy of high temperature hot corrosion of rene 80 super alloy was studied using weight change curves;sem, edax and x-ray phase analysis. aftersample preparations and coating by na2s0 4, the test was carried out at 800, 850, 900 and950°c results show at 800 and 850°c, hot corrosion ofrene 80 superalloy follow paraboliclaw and the propagation stage does not occur. most destroying attack by hot corrosion forrene 80 supcralloy is experienced at 900°c and the specimen is destroyed in 3 cycles. thehot corrosion products of the rene 80superalloy consisted of 3 layers of compact nio,porous nio and a mixtureofnio+nis. the results are well correlated with a well-knownmodel.
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کلیدواژه
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Turbine blade ,H.T.H.C ,SEM ,Suliidation ,Wagner model
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آدرس
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isfahan university of technology, Department of Materials, ایران, isfahan university of technology, Department of Materials, ایران, isfahan university of technology, Department of Materials, ایران
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پست الکترونیکی
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m.khorrami@alumni.iut.ac.ir
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Authors
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