Experimental studies of phase transformations in a carbon containing Ti-45Al-7.5Nb alloy and related thermodynamic simulations

被引：12

作者：

Chladil, HF ^{[1
]}

Clemens, H

Leitner, H

Bartels, A

Gerling, R

Marketz, WT

机构：

[1] Montanuniv, Dept Phys Met & Mat Testing, A-8700 Leoben, Austria

[2] Tech Univ Hamburg, D-21071 Hamburg, Germany

[3] GKSS Forschungszentrum Geesthacht GmbH, Inst Mat Res, D-21502 Geesthacht, Germany

[4] Bohler Schmiedetech GmbH&CoKG, A-8605 Kapfenberg, Austria

来源：

ADVANCED ENGINEERING MATERIALS | 2005年 / 7卷 / 12期

关键词：

D O I：

10.1002/adem.200500153

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Phase transformations and phase transition temperatures in a carbon containing Ti-45Al-7 were analyzed and compared to the related thermodynamic simulations. Pre-alloyed powders of three different compositions were produced by means of gas atomization. It was observed that C stabilized the ordered α2-Ti3Al phase that results in an increased eutectoid temperature. It was found that the influence of Nb and C on the α-transus temperature was relatively small. A discrepancy, with regard to the eutectoid temperature was also observed in high Nb-containing γ-TiAl based alloys.

引用

页码：1131 / 1134

页数：4

共 18 条

[1]

ANSARA I, 1979, INT MET REV, V22, P20

[2] Novel design concepts for gamma-base titanium aluminide alloys [J].

Appel, F ;

Oehring, M ;

Wagner, R .

INTERMETALLICS, 2000, 8 (9-11) :1283-1312

[3]

APPEL F, 2002, TITANIUM TITANIUM AL, P89

[4]

BARTELS A, 2005, MAT RES SOC S P, V842

[5] Phase stability of a γ-TiAl based alloy upon annealing:: comparison between experiment and thermodynamic calculations [J].

Beschliesser, M ;

Clemens, H ;

Kestler, H ;

Ieglitsch, F .

SCRIPTA MATERIALIA, 2003, 49 (04) :279-284

[6] Thermophysical properties of a Ti-44%Al-8%Nb-1%B alloy in the solid and molten states [J].

Cagran, C ;

Wilthan, B ;

Pottlacher, G ;

Roebuck, B ;

Wickins, M ;

Harding, RA .

INTERMETALLICS, 2003, 11 (11-12) :1327-1334

[7]

Chen GL, 1999, GAMMA TITANIUM ALUMINIDES 1999, P371

[8]

CHLADIL HF, 2005, MAT RES SOC S P, V8428

[9] Power metallurgical processing of intermetallic gamma titanium aluminides [J].

Gerling, R ;

Clemens, H ;

Schimansky, FP .

ADVANCED ENGINEERING MATERIALS, 2004, 6 (1-2) :23-38

[10] The high temperature oxidation behaviour of high and low alloyed TiAl-based intermetallics [J].

Haanappel, VAC ;

Clemens, H ;

Stroosnijder, MF .

INTERMETALLICS, 2002, 10 (03) :293-305

← 1 2 →