Thermodynamic Assessment of the Alloy Concentration Limits for the Halogen Effect of TiAl Alloys

P. J. Masset; M. Schütze

doi:10.1002/adem.200800057

Thermodynamic Assessment of the Alloy Concentration Limits for the Halogen Effect of TiAl Alloys

Advanced Engineering Materials ◽

10.1002/adem.200800057 ◽

2008 ◽

Vol 10 (7) ◽

pp. 666-674 ◽

Cited By ~ 19

Author(s):

P. J. Masset ◽

M. Schütze

Keyword(s):

Thermodynamic Assessment ◽

Tial Alloys ◽

Halogen Effect ◽

Alloy Concentration ◽

Concentration Limits

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The halogen effect for improving the oxidation resistance of TiAl-alloys

Materials at High Temperatures ◽

10.3184/096034005782744371 ◽

2005 ◽

Vol 22 (3) ◽

pp. 309-314 ◽

Cited By ~ 9

Author(s):

A. Donchev ◽

H.-E. Zschau ◽

M. Schütze

Keyword(s):

Oxidation Resistance ◽

Tial Alloys ◽

Halogen Effect

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ToF-SIMS Study on the Initial Stages of the Halogen Effect in the Oxidation of TiAl Alloys

Oxidation of Metals ◽

10.1007/s11085-017-9779-4 ◽

2017 ◽

Vol 89 (1-2) ◽

pp. 123-139 ◽

Cited By ~ 5

Author(s):

S. Friedle ◽

R. Pflumm ◽

A. Seyeux ◽

P. Marcus ◽

M. Schütze

Keyword(s):

Tial Alloys ◽

Tof Sims ◽

Halogen Effect

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The halogen effect for improving the oxidation resistance of TiAl-alloys

Materials at High Temperatures ◽

10.1179/mht.2005.035 ◽

2005 ◽

Vol 22 (3-4) ◽

pp. 309-314 ◽

Cited By ~ 2

Author(s):

A. Donchev ◽

H.-E. Zschau ◽

M. Schütze

Keyword(s):

Oxidation Resistance ◽

Tial Alloys ◽

Halogen Effect

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Oxidation of TiAl Alloys Coated by Fluorine Resin in SO2 Containing Atmosphere

Materials Science Forum ◽

10.4028/www.scientific.net/msf.654-656.562 ◽

2010 ◽

Vol 654-656 ◽

pp. 562-565

Author(s):

Aleksander Gil ◽

Zbigniew Żurek ◽

Adam Stawiarski

Keyword(s):

Mechanical Properties ◽

Ion Implantation ◽

Surface Treatment ◽

Oxidation Resistance ◽

Organic Compounds ◽

Oxidation Behavior ◽

Alumina Scale ◽

Tial Alloys ◽

Temperature Range ◽

Halogen Effect

There are several ways to improve the oxidation resistance of TiAl alloys. One of them is alloying with elements such as Nb, Ta, W, Si, Ag, Zr or Hf. However, bulk alloying influences the mechanical properties. Surface treatment of TiAl alloys by the small amounts of halogens leads to the formation of the protective alumina scale (“halogen effect”). The halogens can be applied by ion techniques (ion implantation, plasma immersion implantation) but also by spraying or dipping with halogen-containing inorganic and organic compounds. Deposition of the fluorine-containing resin on the surface of TiAl alloys is the easiest way to achieve the best results. SO2 impurity in air significantly influences oxidation behavior of TiAl alloys. In this work the results of the oxidation of a Ti-48Al-2Cr alloy coated with a fluorine-containing resin in the synthetic air and air containing 1% SO2 were presented. The oxidation runs were carried out in the temperature range 800-1000°C.

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Influence of alloy compositions on the halogen effect in TiAl alloys

Materials and Corrosion ◽

10.1002/maco.200804145 ◽

2008 ◽

Vol 59 (7) ◽

pp. 609-618 ◽

Cited By ~ 11

Author(s):

P. J. Masset ◽

S. Neve ◽

H.‐E. Zschau ◽

M. Schütze

Keyword(s):

Tial Alloys ◽

Halogen Effect

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Structure of second phases in TiAl alloys containing Cr and B

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100087197 ◽

1991 ◽

Vol 49 ◽

pp. 576-577

Author(s):

Ernest L. Hall ◽

Shyh-Chin Huang

Keyword(s):

Grain Size ◽

Second Phase ◽

Structure And Properties ◽

Tial Alloys ◽

Second Phases ◽

Interstitial Elements

Addition of interstitial elements to γ-TiAl alloys is currently being explored as a method for improving the properties of these alloys. Previous work in which a number of interstitial elements were studied showed that boron was particularly effective in refining the grain size in castings, and led to enhanced strength while maintaining reasonable ductility. Other investigators have shown that B in γ-TiAl alloys tends to promote the formation of TiB2 as a second phase. In this study, the microstructure of Bcontaining TiAl alloys was examined in detail in order to describe the mechanism by which B alters the structure and properties of these alloys.

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