Effect of cooling rate on Ti-Cu eutectoid alloy microstructure

被引：76

作者：

Souza, S. A. ^{[1
]}

Afonso, C. R. M. ^{[2
]}

Ferrandini, P. L. ^{[1
]}

Coelho, A. A. ^{[1
]}

Caram, R. ^{[1
]}

机构：

[1] Univ Estadual Campinas, FEM, DEMA, Campinas, SP, Brazil

[2] Brazilian Syncrotron Light Lab LNLS, LME, Campinas, SP, Brazil

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2009年 / 29卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

Dental implants; Ti-Cu alloy; Microstructure; Young's modulus; Hardness; BETA-TITANIUM ALLOYS; MECHANICAL-PROPERTIES; BIOMEDICAL APPLICATIONS; MODULI; PHASE;

D O I：

10.1016/j.msec.2008.09.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Titanium alloys present a combination of properties that makes them suitable materials for various medical applications, and there is special interest in Ti-Cu alloys for the fabrication of dental prostheses. The addition of Cu to Ti lowers the melting point of the alloy, as well as leading to the development of desirable mechanical properties. In this study a eutectoid alloy was prepared and heat treated, then cooled at various cooling rates. The eutectoid structure (alpha + Ti2Cu) was observed for all cooling rates used, and evidence of alpha' martensite was found for cooling rate higher than 9 degrees C s(-1). Lower cooling rates resulted in higher modulus values. This was attributed to the volume fraction of the alpha and Ti2Cu phases. Higher cooling rates produced structures with lower modulus values and greater hardness, a result attributed mainly to the development of a martensitic structure. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1023 / 1028

页数：6

共 18 条

[1] Phase transformations during cooling in α+β titanium alloys [J].

Ahmed, T ;

Rack, HJ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 243 (1-2) :206-211

[2] Recent developments in microstructure/property relationships of beta titanium alloys [J].

Ankem, S ;

Greene, CA .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 263 (02) :127-131

[3] The orthorhombic α"-phase in binary titanium-base alloys with d-metals of V-VIII groups [J].

Dobromyslov, A. V. ;

Elkin, V. A. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 438 :324-326

[4] ON THE YOUNG MODULI OF TI-6AL-4V ALLOYS [J].

FAN, ZY .

SCRIPTA METALLURGICA ET MATERIALIA, 1993, 29 (11) :1427-1432

[5] Young's modulus and mechanical properties of Ti-29Nb-13Ta-4.6Zr in relation to α" martensite [J].

Hao, YL ;

Niinomi, M ;

Kuroda, D ;

Fukunaga, K ;

Zhou, YL ;

Yang, R ;

Suzuki, A .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2002, 33 (10) :3137-3144

[6] Structure and properties of cast binary Ti-Mo alloys [J].

Ho, WF ;

Ju, CP ;

Lin, JHC .

BIOMATERIALS, 1999, 20 (22) :2115-2122

[7]

HOLDEN FC, 1955, T AM I MIN MET ENG, V203, P117

[8] Elastic moduli of cast Ti-Au, Ti-Ag, and Ti-Cu alloys [J].

Kikuchi, Masafumi ;

Takahashi, Masatoshi ;

Okuno, Osamu .

DENTAL MATERIALS, 2006, 22 (07) :641-646

[9] Evaluation of Ti-Cr-Cu alloys for dental applications [J].

Koike, M ;

Itoh, M ;

Okuno, O ;

Kimura, K ;

Takeda, O ;

Okabe, TH ;

Okabe, T .

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2005, 14 (06) :778-783

[10] Structure-property relationship of cast Ti-Nb alloys [J].

Lee, CM ;

Ju, CP ;

Lin, JHC .

JOURNAL OF ORAL REHABILITATION, 2002, 29 (04) :314-322

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