Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7208497 | Journal of the Mechanical Behavior of Biomedical Materials | 2015 | 11 Pages |
Abstract
The structurally important finding was that pronounced recrystallization and molecular reorientation increasingly appeared in the near-surface regions of HXLPE liners with increasing the amount of plastic (compressive) deformation stored in the microstructure. Such molecular rearrangements, occurred in response to external strains, locally increase surface cross-shear (CS) stresses, which in turn trigger microscopic wear processes in HXLPE acetabular liners. Thus, on the basis of the results obtained at the molecular scale, we emphasize here the importance of minimizing the development of irrecoverable deformation strain in order to retain the pristine and intrinsically high wear performance of HXLPE components.
Related Topics
Physical Sciences and Engineering
Engineering
Biomedical Engineering
Authors
Yasuhito Takahashi, Takaaki Shishido, Kengo Yamamoto, Toshinori Masaoka, Kosuke Kubo, Toshiyuki Tateiwa, Giuseppe Pezzotti,