Powder Metallurgy Strategies to Improve Properties and Processing of Titanium Alloys: A Review

被引：78

作者：

Hidalgo, Alexandra Amherd ^{[1
]}

Frykholm, Robert ^{[2
]}

Ebel, Thomas ^{[1
]}

Pyczak, Florian ^{[1
]}

机构：

[1] Helmholtz Zentrum Geesthacht, Max Planck Str 1, D-21502 Geesthacht, Germany

[2] Hoganas AB, Bruksgatan 35, S-26383 Hoganas, Sweden

来源：

ADVANCED ENGINEERING MATERIALS | 2017年 / 19卷 / 06期

关键词：

TI-BASED COMPOSITES; GRAINED TI66NB13CU8NI6.8AL6.2 COMPOSITES; MECHANICAL-PROPERTIES; SMALL ADDITION; SINTERED MICROSTRUCTURE; HIGH-STRENGTH; TI-48AL-2CR-2NB ALLOY; FATIGUE BEHAVIOR; FE CONTENT; TI-6AL-4V;

D O I：

10.1002/adem.201600743

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Powder metallurgy (PM) is an attractive technology for manufacturing net-shape titanium-based components. However, it is challenging to make PM titanium products competitive in terms of mechanical properties. This article gives an overview of the current challenges in PM titanium and the best strategies to overcome them by alloying. By adding suitable alloying elements the properties of PM titanium components can be enhanced. The use of sintering aids helps to control the typical residual porosity of PM titanium alloys. Furthermore, controlling microstructure by alloying offers the possibility to go for high performance applications. Moreover, ductility is improved by adding elements that scavenge oxygen. A favorable selection of alloying elements offers a practical and competitive approach to meet the mechanical requirements in future PM titanium applications.

引用

页数：14

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