Characterization of a Ti-48Al-2Nb-2Cr alloy synthesized from mixed gas atomized and mechanically alloyed powders

O. N. Senkov; N. Srisukhumbowornchai; M. L. Ovecoglu; N. Hoo; C. M. Ward-Close; P. Goodwin; P. Tsakiropoulos; F. H. Froes

Characterization of a Ti-48Al-2Nb-2Cr alloy synthesized from mixed gas atomized and mechanically alloyed powders

O. N. Senkov^*, N. Srisukhumbowornchai, M. L. Ovecoglu, N. Hoo, C. M. Ward-Close, P. Goodwin, P. Tsakiropoulos, F. H. Froes

^*Corresponding author for this work

University of Idaho

Research output: Contribution to conference › Paper › peer-review

2 Citations (Scopus)

Abstract

Gamma TiAl based compacts were synthesized by hot isostatic pressing (HIP'ing) a mixture of mechanically alloyed and pre-alloyed gas atomized Ti-48Al-2Nb-2Cr powders at 850°C under 206 MPa pressure for 2 hours. Three different microstructures were produced in HIP'd compacts consisting of (a) homogeneous nanocrystalline or microcrystalline structures, when 100% mechanically alloyed or gas atomized powder respectively were used, and (b) a bimodal structure consisting of a mixture of nano-sized and micron-sized grains, when the compacts were HIP'd from a blend of the gas atomized and mechanically alloyed powders. The microstructures were studied by XRD, SEM, and TEM techniques.

Original language	English
Pages	271-277
Number of pages	7
Publication status	Published - 1997
Externally published	Yes
Event	Proceedings of the 1997 TMS Annual Meeting - Orlando, FL, USA Duration: 10 Feb 1997 → 13 Feb 1997

Conference

Conference	Proceedings of the 1997 TMS Annual Meeting
City	Orlando, FL, USA
Period	10/02/97 → 13/02/97

Cite this

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title = "Characterization of a Ti-48Al-2Nb-2Cr alloy synthesized from mixed gas atomized and mechanically alloyed powders",

abstract = "Gamma TiAl based compacts were synthesized by hot isostatic pressing (HIP'ing) a mixture of mechanically alloyed and pre-alloyed gas atomized Ti-48Al-2Nb-2Cr powders at 850°C under 206 MPa pressure for 2 hours. Three different microstructures were produced in HIP'd compacts consisting of (a) homogeneous nanocrystalline or microcrystalline structures, when 100% mechanically alloyed or gas atomized powder respectively were used, and (b) a bimodal structure consisting of a mixture of nano-sized and micron-sized grains, when the compacts were HIP'd from a blend of the gas atomized and mechanically alloyed powders. The microstructures were studied by XRD, SEM, and TEM techniques.",

author = "Senkov, {O. N.} and N. Srisukhumbowornchai and Ovecoglu, {M. L.} and N. Hoo and Ward-Close, {C. M.} and P. Goodwin and P. Tsakiropoulos and Froes, {F. H.}",

year = "1997",

language = "English",

pages = "271--277",

note = "Proceedings of the 1997 TMS Annual Meeting ; Conference date: 10-02-1997 Through 13-02-1997",

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TY - CONF

T1 - Characterization of a Ti-48Al-2Nb-2Cr alloy synthesized from mixed gas atomized and mechanically alloyed powders

AU - Senkov, O. N.

AU - Srisukhumbowornchai, N.

AU - Ovecoglu, M. L.

AU - Hoo, N.

AU - Ward-Close, C. M.

AU - Goodwin, P.

AU - Tsakiropoulos, P.

AU - Froes, F. H.

PY - 1997

Y1 - 1997

N2 - Gamma TiAl based compacts were synthesized by hot isostatic pressing (HIP'ing) a mixture of mechanically alloyed and pre-alloyed gas atomized Ti-48Al-2Nb-2Cr powders at 850°C under 206 MPa pressure for 2 hours. Three different microstructures were produced in HIP'd compacts consisting of (a) homogeneous nanocrystalline or microcrystalline structures, when 100% mechanically alloyed or gas atomized powder respectively were used, and (b) a bimodal structure consisting of a mixture of nano-sized and micron-sized grains, when the compacts were HIP'd from a blend of the gas atomized and mechanically alloyed powders. The microstructures were studied by XRD, SEM, and TEM techniques.

AB - Gamma TiAl based compacts were synthesized by hot isostatic pressing (HIP'ing) a mixture of mechanically alloyed and pre-alloyed gas atomized Ti-48Al-2Nb-2Cr powders at 850°C under 206 MPa pressure for 2 hours. Three different microstructures were produced in HIP'd compacts consisting of (a) homogeneous nanocrystalline or microcrystalline structures, when 100% mechanically alloyed or gas atomized powder respectively were used, and (b) a bimodal structure consisting of a mixture of nano-sized and micron-sized grains, when the compacts were HIP'd from a blend of the gas atomized and mechanically alloyed powders. The microstructures were studied by XRD, SEM, and TEM techniques.

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M3 - Paper

AN - SCOPUS:0031372050

SP - 271

EP - 277

T2 - Proceedings of the 1997 TMS Annual Meeting

Y2 - 10 February 1997 through 13 February 1997

ER -

Characterization of a Ti-48Al-2Nb-2Cr alloy synthesized from mixed gas atomized and mechanically alloyed powders

Abstract

Conference

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