Effects of Cooling Rate and Sn Addition on the Microstructure of Ti-Nb-Sn Alloys

被引：11

作者：

Aleixo, Giorgia T. ^{[1
]}

Lopes, Eder S. N. ^{[1
]}

Contieri, Rodrigo ^{[1
]}

Cremasco, Alessandra ^{[1
]}

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

Caram, Rubens ^{[1
]}

机构：

[1] Univ Estadual Campinas, Rua Mendeleyev 200, BR-13083860 Campinas, SP, Brazil

[2] Univ Fed Sao Carlos, BR-13565905 Sao Carlos, SP, Brazil

来源：

SOLID-SOLID PHASE TRANSFORMATIONS IN INORGANIC MATERIALS, PTS 1-2 | 2011年 / 172-174卷

基金：

巴西圣保罗研究基金会;

关键词：

Martensitic transformations; Titanium alloys; Elastic modulus and X-Ray Diffraction; MECHANICAL-PROPERTIES; TITANIUM-ALLOYS; ZR ALLOYS; BEHAVIOR; TA; MARTENSITE; EVOLUTION;

D O I：

10.4028/www.scientific.net/SSP.172-174.190

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ti-based alloys present unique properties and hence, are employed in several industrial segments. Among Ti alloys, beta type alloys form one of the most versatile classes of materials in relation to processing, microstructure and mechanical properties. It is well known that heat treatment of Ti alloys plays an important role in determining their microstructure and mechanical behavior. The aim of this work is to analyze microstructure and phases formed during cooling of beta Ti-Nb-Sn alloy through different cooling rates. Initially, samples of Ti-Nb-Sn system were prepared through arc melting furnace. After, they were subjected to continuous cooling experiments to evaluate conditions for obtaining metastable phases. Microstructure analysis, differential scanning calorimetry and X-ray diffraction were performed in order to evaluate phase transformations. Depending on the cooling rate and composition, alpha '' martensite, omega phase and beta phase were obtained. Elastic modulus has been found to decrease as the amount of Sn was increased.

引用

页码：190 / +

页数：2

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