1989
DOI: 10.1007/bf00544506
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Effects of alloy additions on the microstructures and tensile properties of cast Co-Cr-Mo alloy used for surgical implants

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Cited by 34 publications
(11 citation statements)
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“…The hardness of the matrix phase in the HIPed alloy was higher which may have contributed to its relatively lower toughness compared to the cast counterpart. The generally fine microstructure of the cast CoCrMo alloy is dense and exhibits good ductility, both of which are beneficial to impact toughness [26,28,36]. The higher standard deviation observed for the cast material is attributed to its relatively less homogeneous microstructure and more convoluted crack path, compared with the HIPed material.…”
Section: Charpy Impact Energymentioning
confidence: 76%
“…The hardness of the matrix phase in the HIPed alloy was higher which may have contributed to its relatively lower toughness compared to the cast counterpart. The generally fine microstructure of the cast CoCrMo alloy is dense and exhibits good ductility, both of which are beneficial to impact toughness [26,28,36]. The higher standard deviation observed for the cast material is attributed to its relatively less homogeneous microstructure and more convoluted crack path, compared with the HIPed material.…”
Section: Charpy Impact Energymentioning
confidence: 76%
“…Peningkatan kandungan karbon juga meningkatkan nilai kekerasan paduan CoCr-Mo sehingga material menjadi getas. Nikel merupakan salah satu unsur yang dapat meningkatkan mampu bentuk, elongasi dan keuletan (ductility) [11][12] atau menurunkan kegetasan. Menurut L.Z.…”
Section: Pendahuluanunclassified
“…Zhuang dan E.W Langer penambahan nikel hingga 9% dapat meningkatkan elongasi sebesar 20%. Pada penelitian yang dilakukan oleh Ika kartika dan kawan-kawan [11] , ditambahkan unsur mangan dalam paduan Co-Cr-Mo. Penambahan unsur mangan adalah untuk tetap mempertahankan sifat mampu bentuk dalam paduan, menggantikan nikel karena bersifat alergi dalam tubuh manusia.…”
Section: Pendahuluanunclassified
“…Finalmente, el proceso de obtención de implantes quirúrgicos termina con una última etapa de solubilización con enfriamiento rápido posterior, con el objetivo de reducir el tamaño de grano y redisolver los carburos formados durante el tratamiento HIP, en el cual la prótesis se ve sometida a un enfriamiento muy lento debido a la despresurización necesaria. Este tipo de aleaciones es bifásica, compuesta por una matriz de Co (CCC) y precipitados de carburos [8]. La cantidad, distribución, tamaño y morfología de las fases precipitadas depende de los tratamientos térmicos a los que se somete la aleación.…”
Section: Introductionunclassified