Oxidation behavior of STA β-21S alloy and variants [Ti-xNb-yMo-5.6Al-0.5Si at%; x + y=9.5]

被引：5

作者：

Ferreira, L. M. ^{[1
]}

Chaia, N. ^{[1
,2
]}

Coelho, G. C. ^{[1
]}

Nunes, C. A. ^{[1
]}

机构：

[1] Univ Sao Paulo, Escola Engn Lorena, Lorena, SP, Brazil

[2] Univ Alfenas, Inst Ciencia & Tecnol, Pocos De Caldas, MG, Brazil

来源：

CORROSION SCIENCE | 2022年 / 203卷

基金：

巴西圣保罗研究基金会;

关键词：

Titanium alloys; beta-21S; High temperature; Oxidation; Hardness profiles; HIGH-TEMPERATURE OXIDATION; TITANIUM-ALLOYS; ALPHA-TITANIUM; NIOBIUM; OXYGEN; PRECIPITATION; DIFFUSION; COATINGS; AIR; NB;

D O I：

10.1016/j.corsci.2022.110342

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A correlation between the Nb/Mo contents in the beta-21S alloy and the oxidation behavior at high temperatures was investigated. Five alloys were oxidized pseudo-isothermally at 700, 750 and 800 degrees C under static lab air for long periods. The kinetics of mass change versus time follow a parabolic law. Oxygen dissolution in the substrate represent the main part of the mass uptake. The increase of the Nb content in the alloys induces the formation of TiN and the reduction of the TiO2 scale. The results showed also that microstructural changes associated with the increase in temperature strongly affect the oxidation behavior.

引用

页数：10

共 41 条

[1]

Bania P. J., 1990, PROC TECHNICAL PROGR

[2] NEXT GENERATION TITANIUM-ALLOYS FOR ELEVATED-TEMPERATURE SERVICE [J].

BANIA, PJ .

ISIJ INTERNATIONAL, 1991, 31 (08) :840-847

[3]

BANIA PJ, 1994, JOM-J MIN MET MAT S, V46, P16, DOI 10.1007/BF03220742

[4] Influence of oxygen ingress on fine scale precipitation of α-Ti during oxidation of Beta21S β-Ti alloy [J].

Behera, A. ;

Nag, S. ;

Mahdak, K. ;

Mohseni, H. ;

Tiley, J. ;

Banerjee, R. .

JOURNAL OF MATERIALS SCIENCE, 2013, 48 (19) :6700-6706

[5] Study of titanium alloy Ti6242S oxidation behaviour in air at 560 °C: Effect of oxygen dissolution on lattice parameters [J].

Berthaud, M. ;

Popa, I. ;

Chassagnon, R. ;

Heintz, O. ;

Lavkova, J. ;

Chevalier, S. .

CORROSION SCIENCE, 2020, 164

[6]

Birks N, 2006, INTRODUCTION TO THE HIGH-TEMPERATURE OXIDATION OF METALS, 2ND EDITION, P1, DOI 10.1017/CBO9781139163903

[7] Protective aluminide coating by pack cementation for Beta 21-S titanium alloy [J].

Chaia, N. ;

Cossu, C. M. F. A. ;

Ferreira, L. M. ;

Parrisch, C. J. ;

Cotton, J. D. ;

Coelho, G. C. ;

Nunes, C. A. .

CORROSION SCIENCE, 2019, 160

[8] State of the Art in Beta Titanium Alloys for Airframe Applications [J].

Cotton, James D. ;

Briggs, Robert D. ;

Boyer, Rodney R. ;

Tamirisakandala, Sesh ;

Russo, Patrick ;

Shchetnikov, Nikolay ;

Fanning, John C. .

JOM, 2015, 67 (06) :1281-1303

[9] Short- and long-term oxidation behaviour of an advanced Ti2AlNb alloy [J].

Dade, M. ;

Esin, V. A. ;

Naze, L. ;

Sallot, P. .

CORROSION SCIENCE, 2019, 148 :379-387

[10] AIR OXIDATION BEHAVIOR OF TI-6AL-4V ALLOY BETWEEN 650-DEGREES-C AND 850-DEGREES-C [J].

DU, HL ;

DATTA, PK ;

LEWIS, DB ;

BURNELLGRAY, JS .

CORROSION SCIENCE, 1994, 36 (04) :631-642

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