In situ synthesis of a binary Ti-10at% Nb alloy by electron beam melting using a mixture of elemental niobium and titanium powders

被引：46

作者：

Surmeneva, Maria A. ^{[1
]}

Koptyug, Andrey ^{[2
]}

Khrapov, Dmitriy ^{[1
]}

Ivanov, Yuriy F. ^{[1
,3
]}

Mishurova, Tatiana ^{[4
]}

Evsevleev, Sergei ^{[4
]}

Prymak, Oleg ^{[5
,6
]}

Loza, Katerina ^{[5
,6
]}

Epple, Matthias ^{[5
,6
]}

Bruno, Giovanni ^{[4
,7
]}

Surmenev, Roman A. ^{[1
]}

机构：

[1] Natl Res Tomsk Polytech Univ, Res Sch Chem & Appl Biomed Sci, Phys Mat Sci & Composite Mat Ctr, 30 Lenina Ave, Tomsk 634050, Russia

[2] Mid Sweden Univ, Sports Tech Res Ctr, Akad Gatan 1, S-83125 Ostersund, Sweden

[3] Russian Acad Sci, Siberian Branch, Inst High Current Elect IHCE, 2-3 Akad Chesky Ave, Tomsk 634055, Russia

[4] Bundesanstalt Materialforsch & Prufung BAM, Unter Eichen 87, D-12205 Berlin, Germany

[5] Univ Duisburg Essen, Inorgan Chem, Univ Str 4-7, D-45141 Essen, Germany

[6] Univ Duisburg Essen, Ctr Nanointegrat Duisburg Essen CeNIDE, Univ Str 4-7, D-45141 Essen, Germany

[7] Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2020年 / 282卷

基金：

俄罗斯科学基金会;

关键词：

Additive manufacturing; Electron beam melting; Ti-Nb alloy; Blended powders; In situ alloying; Solid solution; Low-modulus alloy; MECHANICAL-PROPERTIES; MICROSTRUCTURE; BEHAVIOR; PHASE; TRANSFORMATION; PROPERTY; TEXTURE; SYSTEM;

D O I：

10.1016/j.jmatprotec.2020.116646

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study reports the results of the preliminary assessment to fabricate Ti-10at% Nb alloy by electron beam melting (EBM (R)) from a blend of elemental Nb and Ti powders. The microstructure of the EBM-manufactured Ti-10at% Nb alloys is sensitive to the following factors: different sintering properties of Nb and Ti powders, powder particle properties, material viscosities at varying melt pool temperatures, beta-stabilizer element content and the EBM (R) process parameters. Three phases were observed in as-manufactured Ti-10at% Nb alloy: mu m-size Nb phase, a Nb-rich beta-solid solution surrounding Nb phase, lamellar structured alpha-phase and beta-solid solution with different distribution and volume fraction. Thus, the combination of powder particle characteristics, very short time material spends in molten condition and sluggish kinetics of mixing and diffusional process in Ti-Nb alloy results in heterogeneous microstructures depending on the local Nb content in the powder blend and the EBM (R) process conditions.

引用

页数：13

共 35 条

[1] The Origin of Microstructural Diversity, Texture, and Mechanical Properties in Electron Beam Melted Ti-6Al-4V [J].