کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7002392 | 1454788 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of surface profile of Co-28Cr-6Mo alloy on wear behaviour of ultra-high molecular weight polyethylene used in artificial joint
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The influence of the surface profile of Co-28Cr-6Mo alloy (ASRM F75) on the wear behaviour of ultra-high molecular weight polyethylene (GUR1050) was investigated using pin-on-disc wear testing. The surface profile of Co-Cr-Mo alloy was designed to control not only the volume of wear of polyethylene but also the morphological features of the wear debris. The surface profile of Co-Cr-Mo alloy showed a surface roughness from the micrometre to nanometre scale, and a waviness curve with convex and concave parts of millimetres in size. The surface processing was conducted using micro slurry-jet erosion. The processed surface of Co-Cr-Mo alloy recorded the lowest wear rate of polyethylene in comparison with a conventional mirror finish surface. The equivalent circle diameter of the polyethylene wear particles from the processed surface was more than two-times larger than that using a conventional mirror finish surface. It was revealed that the larger debris group produced by the processed surface was able to reduce the secretion of IL-6 from macrophage activation during biochemistry tests. The results illustrate the possibility of controlling the major factors in the long-term osteolysis and loosening of artificial joints through the use of a surface modification of a Co-Cr-Mo alloy surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 118, February 2018, Pages 538-546
Journal: Tribology International - Volume 118, February 2018, Pages 538-546
نویسندگان
Yoshitaka Nakanishi, Yuta Nakashima, Yukio Fujiwara, Yoshihiro Komohara, Motohiro Takeya, Hiromasa Miura, Hidehiko Higaki,