Effect of aluminizing on the oxidation behavior of the titranium alloy, IMI 834

被引：36
作者：
Gurrappa, I [1 ]
机构：
[1] Def Met Res Lab, Hyderabad 500058, Andhra Pradesh, India
来源：
OXIDATION OF METALS | 2001年 / 56卷 / 1-2期
关键词：
Titanium alloys; oxidation; alpha-case formation; aluminide coating; degradation mechanism;
D O I：
10.1023/A:1010343403143
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
This article presents the development of a simple and cost-effective coating to protect the titanium alloy, IMI 834, from oxidation and alpha-case formation so that the alloy can be used safely, even at relatively high operating temperatures. A surface-modification technique, pack aluminizing, was employed to coat the alloy. Cyclic-isothermal oxidation studies at 800 degreesC revealed that the plain aluminide coating obtained by pack aluminizing exhibits good oxidation resistance compared to the uncoated alloy. Based on the results obtained by different techniques, it is suggested that the plain aluminide is an economical, simple, and efficient coating for prevention of alpha-case formation and protection against oxidation of components fabricated from IMI 834.
引用
收藏
页码：73 / 87
页数：15
相关论文
共 26 条
  • [1] EFFECT OF COATINGS ON OXIDATION OF TI-6AL-2SN-4ZR-2MO FOIL
    CLARK, RK
    UNNAM, J
    WIDEMANN, KE
    [J]. OXIDATION OF METALS, 1987, 28 (5-6): : 391 - 405
  • [2] Isothermal and cyclic oxidation resistance of boron-modified and germanium-doped silicide coatings for titanium alloys
    Cockeram, B
    Rapp, RA
    [J]. OXIDATION OF METALS, 1996, 45 (5-6): : 427 - 468
  • [3] EFFECT OF NB COATING ON THE SULFIDATION OXIDATION BEHAVIOR OF TI AND TI-6AL-4V ALLOY
    DU, HL
    DATTA, PK
    BURNELLGRAY, JS
    LEWIS, DB
    [J]. JOURNAL OF MATERIALS SCIENCE, 1995, 30 (10) : 2640 - 2647
  • [4] GOWARD GW, 1986, MATER SCI TECH SER, V2, P194, DOI 10.1179/026708386790123314
  • [5] GURRAPPA I, UNPUB SCRIPT MET
  • [6] Gurrappa I, 1999, P 5 NAT CONV CORR NE, V1, P210
  • [7] An assessment of thermal spray coating technologies for high temperature corrosion protection
    Heath, GR
    Heimgartner, P
    Irons, G
    Miller, R
    Gustafsson, S
    [J]. HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 4, PTS 1 AND 2, 1997, 251-2 : 809 - 816
  • [8] Oxidation behavior and mechanical properties of yttrium-doped L12 (Al,Cr)3Ti coating on TiAl alloys
    Lee, HN
    Park, ZM
    Oh, MH
    Kim, KY
    Wee, DM
    [J]. SCRIPTA MATERIALIA, 1999, 41 (10) : 1073 - 1078
  • [9] Oxidation and protection of near-alpha titanium alloys
    Leyens, C
    Peters, M
    Kaysser, WA
    [J]. HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 4, PTS 1 AND 2, 1997, 251-2 : 769 - 776
  • [10] Intermetallic Ti-Al coatings for protection of titanium alloys: oxidation and mechanical behavior
    Leyens, C
    Peters, M
    Kaysser, WA
    [J]. SURFACE & COATINGS TECHNOLOGY, 1997, 94-5 (1-3) : 34 - 40
123