Stiffness and strength tailoring of cobalt chromium graded cellular structures for stress-shielding reduction

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• 作者：Sakkadech Limmahakhun^a ; ^{sakka_lim@hotmail.com} ; Adekunle Oloyede^a ; ^{k.oloyede@qut.edu.au} ; Kriskrai Sitthiseripratip^b ; ^{kriskrs@mtec.or.th} ; Yin Xiao^a ; ^{yin.xiao@qut.edu.au} ; Cheng Yan^a ; ^{c2.yan@qut.edu.au}
• 关键词：Functionally graded cellular structures ; Selective laser melting ; Stress shielding ; Mechanical properties ; Cobalt chromium
• 刊名：Materials & Design
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：114
• 期：Complete
• 页码：633-641
• 全文大小：2034 K
• 卷排序：114

文摘

Selective laser melting techniques are capable of fabricating the CoCr cellular structures with graded beam thickness. Pillar-octahedral-shape CoCr could represent mechanical properties and morphology comparable to human bones. Graded cellular structure demonstrates balanced mechanical performances and maximised proximal stress transfers. Incorporating the concept of axially graded cellular structures is recommended for load-sharing femoral implants.