کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9809945 1517720 2005 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rolling contact fatigue of post-treated WC-NiCrBSi thermal spray coatings
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Rolling contact fatigue of post-treated WC-NiCrBSi thermal spray coatings
چکیده انگلیسی
Test results reveal that performance of the coating was dependant on the microstructural changes due to post-treatment. Coatings heat-treated at 1200 °C displayed superior performance in RCF testing over the as-sprayed coatings at all stress levels (2, 2.3, 2.7 GPa) with emphasis on RCF performance at lower stress load of 2 GPa, where no failure occurred. Improvement in RCF performance was attributed to the diffusion between the carbides and matrix resulting in improved strength. At higher levels of contact stress, failure was surface initiated, and was attributed to initiation and propagation of micro-cracks at the edge of rolling contact region which led to coating delamination.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 190, Issues 2–3, 21 January 2005, Pages 171-189
نویسندگان
, , ,