کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
830140 1470351 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation on mechanical property of annealed copper particles and cold sprayed copper coating by a micro-indentation testing
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Investigation on mechanical property of annealed copper particles and cold sprayed copper coating by a micro-indentation testing
چکیده انگلیسی

In this study, the large annealed spherical copper powder (−120 + 150 mesh) was cold sprayed on a copper substrate. Microstructures of the annealed Cu particles and cold sprayed Cu coating were characterized by optical microscope and scanning electron microscope, and the mechanical property of the Cu particles and the Cu coating were examined by a micro-indentation testing. The hardness and Young’s moduli of the Cu particles and Cu coating were determined by the method of Oliver and Pharr under the different test forces. Results show that the annealed Cu particles present more homogeneous and lower mechanical property than that of the deformed zones of the cold sprayed Cu coating, and the large deformed zone has the different mechanical property from that of the small deformed zone of the cold sprayed Cu coating because of the strong work-hardening effect on the coating. In addition, the regular variation tendency of hardness and the irregular variation tendency of Young’s moduli could be explained by the effect of indentation size effect and different degrees of deformation damage, respectively.


► Micro-indentation testing was used to characterize the coating mechanical property.
► Hardness and Young’s moduli were determined by the method of Oliver and Pharr.
► Relationship between particle deformation and mechanical property was revealed.
► Mechanical properties variations in two typical zones of coating were clarified.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 46, April 2013, Pages 219–226
نویسندگان
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