Microstructural Development and Mechanical Properties of Selective Laser Melted Co–Cr–W Dental Alloy
Microstructural Development and Mechanical Properties of Selective Laser Melted Co–Cr–W Dental Alloy
复制标题
选择性激光熔化 CoâCrâW 牙科合金的微观结构发展和机械性能
DOI:
10.1007/978-3-030-36296-6_18
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Werner E.
中科院分区:
文献类型:
--
作者:
Hitzler L;Von Kobylinski J;Lawitzki R;Krempaszky C;Werner E.
Dental restorations are a predestined area for additive manufacturing , due to the required fast fabrication , the low quantities, and the freedom in geometrical designs. Past studies revealed that there is a significant difference in the microstructure compared to traditional investment cast restorations, with drastic implications on the material properties . In many instances, these changes are beneficial, i.e. higher mechanical strength and increased ductility, but at a reduced elastic stiffness . The latter is crucial for the type 5 classification and, based on the studies on a selective laser melted Co–Cr–W dental alloy , a post-heat treatment is inevitable to safely exceed the 150 GPa minimum requirement. Heat treatment at 1150 °C caused a recrystallization and a formation of tungsten rich precipitates, surrounded by a tungsten depleted cobalt–chromium matrix. In the heat-treated state, the alloy exhibited semi-isotropic tensile properties with an average Young’s modulus of about 200 GPa, safely meeting the dental type 2 to 5 classifications.
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DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
Kittikundecha N;Kajima Y;Takaichi A;Nakamoto T;Doi H;Tsutsumi Y;Nomura N;Kawasaki A;Takahashi H;Hanawa T;Wakabayashi N.
通讯作者:
Wakabayashi N.
影响因子:
3.9
作者:
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F. Razan
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3.9
作者:
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通讯作者:
Williams, R. J.
影响因子:
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作者:
L. Hitzler;P. Williams;M. Merkel;W. Hall;A. Öchsner
通讯作者:
A. Öchsner
影响因子:
--
作者:
Hitzler, Leonhard;Alifui-Segbaya, Frank;Oechsner, Andreas
通讯作者:
Oechsner, Andreas