Performance assessment of Ti7.5Mo alloy for removable partial denture application

Yu Po Peng, Jiin Huey Chern Lin, Chien Ping Ju

研究成果: Article

摘要

A head-to-head comparison was made between an in-house-developed Ti-7.5Mo alloy and commonly-used grade-2 commercially pure titanium (CP-Ti) for dental casting applications. Experimental results indicated that all impurity concentrations, densities, linear thermal expansion coefficients and solid/liquid transition temperatures of Ti-7.5Mo and CP-Ti were similar. The 7-day total release of metal ions from immersed Ti-7.5Mo was acceptably low (10 µg/cm12) with no harmful elements detected. Cytotoxicity testing indicated that Ti-7.5Mo had a cell viability of 82.5%, higher than the generally accepted value (70%). X-ray diffraction patterns indicated that Ti-7.5Mo was comprised primarily of ¡AA phase with a small amount of ¢ phase, while CP-Ti showed a monolithic ¡/¡A phase. Light and scanning electron microscopy revealed that CP-Ti had a typical plate-shaped morphology, while Ti-7.5Mo alloy was featured by its much finer acicular-shaped ¡AA crystals along with equi-axed retained ¢ grain boundaries. The castability value of Ti-7.5Mo was almost double that of CP-Ti. Both grinding and cutting tests indicated that Ti-7.5Mo had much better machinability than CP-Ti. Tensile testing indicated that Ti-7.5Mo had higher tensile strength, higher elongation and lower modulus (respectively 806 MPa, 42% and 70 GPa) than CP-Ti (respectively 571 MPa, 22% and 113 GPa). Bending data showed that Ti-7.5Mo had higher bending strength, lower modulus and much larger elastic recovery angle (respectively 1154.7 MPa, 75.8 GPa and 31.5°) than CP-Ti (respectively 919.5 MPa, 125 GPa and 2.8°). From all present data it was concluded that Ti-7.5Mo alloy would be a much better material than CP-Ti for removable partial denture application.

原文English
頁(從 - 到)2311-2318
頁數8
期刊Materials Transactions
60
發行號11
DOIs
出版狀態Published - 2019 一月 1

指紋

Dental prostheses
Titanium
titanium
Machinability
flexural strength
Tensile testing
grinding
Cytotoxicity
viability
Bending strength
tensile strength
Diffraction patterns
Superconducting transition temperature
elongation
Thermal expansion
Metal ions
Elongation
thermal expansion
grade
metal ions

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

引用此文

Peng, Yu Po ; Lin, Jiin Huey Chern ; Ju, Chien Ping. / Performance assessment of Ti7.5Mo alloy for removable partial denture application. 於: Materials Transactions. 2019 ; 卷 60, 編號 11. 頁 2311-2318.
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abstract = "A head-to-head comparison was made between an in-house-developed Ti-7.5Mo alloy and commonly-used grade-2 commercially pure titanium (CP-Ti) for dental casting applications. Experimental results indicated that all impurity concentrations, densities, linear thermal expansion coefficients and solid/liquid transition temperatures of Ti-7.5Mo and CP-Ti were similar. The 7-day total release of metal ions from immersed Ti-7.5Mo was acceptably low (10 µg/cm12) with no harmful elements detected. Cytotoxicity testing indicated that Ti-7.5Mo had a cell viability of 82.5{\%}, higher than the generally accepted value (70{\%}). X-ray diffraction patterns indicated that Ti-7.5Mo was comprised primarily of ¡AA phase with a small amount of ¢ phase, while CP-Ti showed a monolithic ¡/¡A phase. Light and scanning electron microscopy revealed that CP-Ti had a typical plate-shaped morphology, while Ti-7.5Mo alloy was featured by its much finer acicular-shaped ¡AA crystals along with equi-axed retained ¢ grain boundaries. The castability value of Ti-7.5Mo was almost double that of CP-Ti. Both grinding and cutting tests indicated that Ti-7.5Mo had much better machinability than CP-Ti. Tensile testing indicated that Ti-7.5Mo had higher tensile strength, higher elongation and lower modulus (respectively 806 MPa, 42{\%} and 70 GPa) than CP-Ti (respectively 571 MPa, 22{\%} and 113 GPa). Bending data showed that Ti-7.5Mo had higher bending strength, lower modulus and much larger elastic recovery angle (respectively 1154.7 MPa, 75.8 GPa and 31.5°) than CP-Ti (respectively 919.5 MPa, 125 GPa and 2.8°). From all present data it was concluded that Ti-7.5Mo alloy would be a much better material than CP-Ti for removable partial denture application.",
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Performance assessment of Ti7.5Mo alloy for removable partial denture application. / Peng, Yu Po; Lin, Jiin Huey Chern; Ju, Chien Ping.

於: Materials Transactions, 卷 60, 編號 11, 01.01.2019, p. 2311-2318.

研究成果: Article

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N2 - A head-to-head comparison was made between an in-house-developed Ti-7.5Mo alloy and commonly-used grade-2 commercially pure titanium (CP-Ti) for dental casting applications. Experimental results indicated that all impurity concentrations, densities, linear thermal expansion coefficients and solid/liquid transition temperatures of Ti-7.5Mo and CP-Ti were similar. The 7-day total release of metal ions from immersed Ti-7.5Mo was acceptably low (10 µg/cm12) with no harmful elements detected. Cytotoxicity testing indicated that Ti-7.5Mo had a cell viability of 82.5%, higher than the generally accepted value (70%). X-ray diffraction patterns indicated that Ti-7.5Mo was comprised primarily of ¡AA phase with a small amount of ¢ phase, while CP-Ti showed a monolithic ¡/¡A phase. Light and scanning electron microscopy revealed that CP-Ti had a typical plate-shaped morphology, while Ti-7.5Mo alloy was featured by its much finer acicular-shaped ¡AA crystals along with equi-axed retained ¢ grain boundaries. The castability value of Ti-7.5Mo was almost double that of CP-Ti. Both grinding and cutting tests indicated that Ti-7.5Mo had much better machinability than CP-Ti. Tensile testing indicated that Ti-7.5Mo had higher tensile strength, higher elongation and lower modulus (respectively 806 MPa, 42% and 70 GPa) than CP-Ti (respectively 571 MPa, 22% and 113 GPa). Bending data showed that Ti-7.5Mo had higher bending strength, lower modulus and much larger elastic recovery angle (respectively 1154.7 MPa, 75.8 GPa and 31.5°) than CP-Ti (respectively 919.5 MPa, 125 GPa and 2.8°). From all present data it was concluded that Ti-7.5Mo alloy would be a much better material than CP-Ti for removable partial denture application.

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