Illustration of Fracture Mechanism in High Temperature for TiAl Alloys

Abstract:

For the shorting of fracture mechanism from the point of high temperature condition, so a new method of illustration, which is carried out under the condition of high temperature, for fracture mechanism will be adopted in this paper. And a more accuracy and more understandability result can be got by this new method. Besides, the performance of TiAl alloys can be improved by making grains refined to decrease the slip plane spacing, which can be got from the mechanics analysis.

• Periodical: Applied Mechanics and Materials (Volumes 457-458)
• Pages: 19-22
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.457-458.19
• Online since: October 2013
• Authors: Guo Tao Zhang, Zhi Yuan Rui, Rui Cheng Feng, Yan Rui Zuo, Chang Feng Yan
• Keywords: Fracture Mechanism, High-Temperature, Mechanics Analysis, TiAl Alloys

References

[1] Zhang Deming, Chen Guiqing, Han Jiecai, Meng Songhe, Review on studies of gamma TiAl-based high-temperature structural materials, Journal of the Chinese Rare Earth Society, A23(2005)163-167.

[2] Bauer,V. , Christ, H-J, Thermomechanical fatigue behavior of a third generationγ-TiAl intermetallic alloy, Intermetallics, 17(2009)370-377.

DOI: 10.1016/j.intermet.2008.11.013

[3] Wang Lei, Mitsuo Niinomi, Shiro Takahashi, Masao Hagiwara, Relationship between fracture toughness and microstructure of Ti-6Al-2Sn-4Zr-2Mo alloy reinforced with TiB particles, Materials Science and Engineering, A263(1999)319-325.

DOI: 10.1016/s0921-5093(98)01163-0

[4] Xiao Shulong, Xu Lijuan, Yu Hongbao, Chen Yuyong, Effect of Y addition on microstructure and mechanical properties of TiAl-based alloys prepared by SPS, Rare Metal Materials and Engineering, 42(2013)0023-0027.

DOI: 10.1016/s1875-5372(13)60031-4

[5] R. Bohn, T. Klassen, R. Bormann, Room temperature mechanical behavior of silicon-doped TiAl alloys with grain in the nano- and submicron-range, Acta Materialia, 49(2001)299-311.

DOI: 10.1016/s1359-6454(00)00312-8

[6] Zhang Junhong, Research on the superplasticity of TiAl-based alloy, Central South University, (2003).

[7] K.U. Snowden, The grain-boundary sliding component in high-temperature fatigue, Journal of Materials Science, 15(1980)795-796.

DOI: 10.1007/bf00551751

[8] Wu Qisheng, Material physical properties(In Chinese), East China University of Science and Technology Press, Shanghai, (2010).

[9] I. Le May, Principles of mechanical metallurgy, Elsevier, New York, (1981).

[10] Mao Weimin, Zhu Jingchuan, Li Jian, Long Yi, Fan Quncheng, The structure and properties of metallic materials(In Chinese), Tsinhua University Press, Beijing, (2008).

[11] Fan Jimei, Wan Guangmin, The dislocation theory and its application in metal cutting(In Chinese), Shanghai Jiao Tong University Press, Shanghai, (1991).

[12] Y. Koizumi, T. Nakano, Y. Umakoshi, Dislocation dipoles in cyclically deformed Ti3Al single crystals, Intermetallics, 8(2000)179-186.

DOI: 10.1016/s0966-9795(99)00090-4

[13] D. Mclean, The grain boundary in metal, Science Press, (1965).

[14] L.S. Metlov, M.M. Myshlyaev, A.V. Khomenko, I.A. Lyashenko, A model of grain boundary sliding during deformation, Metlov et al., 38(2012)972-974.

DOI: 10.1134/s1063785012110107