用热重法研究了试样表面粗糙度及环境介质流动性对五种铸态TiAl基合金( Ti - 50Al,Ti - 48Al,Ti - 52Al,Ti - 48Al - 1Cr及Ti - 48Al - 4Cr) 900 ℃断续氧化行为的影响.结果表明,表面粗糙度增加(▽7→▽4)时TiAl氧化加重;与静止空气介质(v=0mm.s-1)相比,空气流动(v=1mm.s-1)也使TiAl抗氧化性下降.前者因不可避免的计算误差和氧化内应力引起,后者由氧的供给量不同造成,但二者都与破裂氧化程度加重有关.
参考文献
| [1] | Rakowski J M;Pettit F S;Meier G H et al.The Effect of Nitrogen on the Oxidation of γ-TiAl[J].Scripta Metallurgica et Materialia,1995,33(06):997-1003. |
| [2] | Zheng N;Fischer W;Grübmeier et al.The Significance of Sub-surface Depletion Layer Composition for the Oxidation Behaviour of γ-Titanium Aluminides[J].Scripta Metallurgica et Materialia,1995,33(01):47-53. |
| [3] | Takasaki A;Ojima K;Taneda Y et al.High-Temperature Oxidation Process of Intermetallic Compound Ti-42 at%Al[J].Journal of Materials Science,1993,28(04):1067-1073. |
| [4] | 唐兆麟;王福会 等.高温钛合金及钛铝金属间化合物腐蚀与防护[J].稀有金属,1996,20(04):291-296. |
| [5] | Michael P. Brady;William J. Brindley;James L. Smialek .The Oxidation and Protection of Gamma Titanium Aluminides[J].JOM,1996(11):46-50. |
| [6] | 贺跃辉.化学热处理表面改性对TiAl基合金抗高温氧化性能的影响[J].材料工程,1995(05):22. |
| [7] | Quadakkers W J;Zheng N;Nickel H.Progress in the Understanding and Prevention of Corrosion[M].,1993:770-776. |
| [8] | Shida Y;Anada H .The Influence of Ternary Element Addition on the Oxidation Behaviour of TiAl Intermetallic Compound in High Temperature Air[J].Corrosion Science,1993,35(5-8):945-953. |
| [9] | Huang S C .Abstracts 95-0581[J].Materials and Corrosion,1995,46(03):R54. |
| [10] | Schütze M;Schmitz-Niederau M.Interaction of Mechanical Loading and Oxidation at 900 ℃ for TiAl[M].Gamma Titanium Aluminides,1995:83-92. |
| [11] | Mckee D W;Huang S C .Oxidation Behavior of Gamma-Titanium Aluminide Alloys[J].High-Temperature Ordered Intermetallic Alloys IV,1990,213:939-943. |
| [12] | 刘羽辉.金属材料物理性能检验标准工作手册[M].北京:技术标准出版社,1982:202-205. |
| [13] | Yoshihara M;Miura K;Kim Y W.Oxidation Behavior of Structure-Controlled TiAl[M].Gamma Titanium Aluminides,1995:93-100. |
| [14] | Sun Y;Cao C;Cao J et al.Oxidation Resistance and Mechanical Properties of Ti3Al-Nb-Mo-Si Alloys[J].Acta Metallurgica Sinica,1995,8(4-6):577-582. |
| [15] | 胡武生.微量元素对低偏析合金M17F的高温氧化性能的影响[J].腐蚀科学与防护技术,1996(02):94. |
| [16] | 沈桂琴.光学金相技术[M].北京:北京航空航天大学出版社,1992:11-24. |
| [17] | 袁长良;丁志华;武文堂.表面粗糙度及其测量[M].北京:机械工业出版社,1989:5-10. |
| [18] | 于海巢;马培德.金相工基础[M].北京:科学普及出版社,1987:327. |
| [19] | 曲恒磊;周廉;魏海荣.静止空气中TiAl断续氧化动力学[J]. |
| [20] | 曲恒磊;周廉;魏海荣.钛铝高温氧化表面分析[J]. |
| [21] | Nwobu A I P;Flower H M;West D R F.Mechanism of Oxidation of Gamma TiAl Based Alloys[M].Titanium'95:Science and Technology,1995:411-418. |
| [22] | 曲恒磊;周廉;魏海荣.氧化气氛中的氮对TiAl高温氧化行为的影响[J].金属学报,1999(suppl) |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%