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Microstructure and tensile properties of low cost titanium alloys at different cooling rate

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Abstract

Titanium and titanium alloys have several advantages, but the cost of titanium alloys is very expensive compared with the traditional metal materials. This article introduces two new low-cost titanium alloys Ti-2.1Cr-1.3Fe (TCF alloy) and Ti-3Al-2.1Cr-1.3Fe (TACF alloy). In this study, we used Cr-Fe master alloy as one of the raw materials to develop the two new alloys. We introduce the microstructure and tensile properties of the two new alloys from β solution treated with different cooling methods. Optical microscopy (OM), X-ray diffractometry (XRD), and transmission electron microscopy (TEM) were employed to analyze the phase constitution, and scanning electron microscopy (SEM) was used to observe the fracture surfaces. The results indicate that the microstructures consist of β grain boundary and α′ martensite after water quenching (WQ), β matrix and α phase after air cooling (AC) and furnace cooling (FC), respectively. Also, the microstructure is the typical basketweave structures after FC. Of course, athermal ω is also observed by TEM after WQ. The strength increases with decreasing cooling rates and the plasticity is reversed. Because of the athermal ω, the strength and ductility are highest and lowest when the cooling method is WQ. The strength of TACF alloy is higher than the TCF alloy, but the plasticity is lower. The fracture surfaces are almost entirely covered with dimples under the cooling methods of AC and FC. Also, we observe an intergranular fracture area that is generated by athermal ω, although some dimples are observed after WQ.

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References

  1. Luo J., and Li M.Q., Modeling of grain size in isothermal compression of Ti-6Al-4V alloy using fuzzy neural network, Rare Met., 2011, 30(6): 555.

    Article  CAS  Google Scholar 

  2. Liu R., Hui S.X., Ye W.J., Xiong B.Q., Yu Y., and Fu Y.Y., Dynamic fracture of TA15ELI alloy studied by instrumented impact test, Rare Met., 2010, 29(6): 608.

    Article  Google Scholar 

  3. Yu Y., Hui S.X., Ye W.J., and Xiong B.Q., Mechanical properties and microstructure of an α+β titanium alloy with high strength and fracture toughness, Rare Met., 2009, 28(4): 346.

    Article  CAS  Google Scholar 

  4. Fujii H., Takahashi K., and Yamashita Y., Application of Titanium and its alloys for automobile parts, Shinnittetsu Giho., 2003, (88): 70.

  5. Hartman A. D., Gerdemann S. J., and Hansen J. S., Producing lower-cost titanium for automotive applications, JOM, 1998, 50(9): 16.

    Article  CAS  Google Scholar 

  6. Faller K., and (Sam) Froes F.H., The use of titanium in family automobiles: current trends, JOM, 2001, 53(2): 27.

    Article  CAS  Google Scholar 

  7. Esteban P.G., Ruiz-Navas E.M., and Bolzon L., Low-cost titanium alloys? Iron may hold the answers, Met. Pow. Rep., 2008, 63(4): 24.

    Article  Google Scholar 

  8. Kawabe Y., Research activities on cost effective metallurgy of titanium alloys in Japan, [in] Proc. of 9th World Conference on Titanium, Russia, 1999: 1275.

  9. Li Z., and Sun J.K., Development and applications of low cost titanium alloys, Rare Met. Mater. Eng., 2008, 37(s3): 973.

    Google Scholar 

  10. Bhattacharjee A., Ghosal P., Gogia A.K., Bhargava S., and Kamat S.V., Room temperature plastic flow behaviour of Ti-6.8Mo-4.5Fe-1.5Al and Ti-10V-4.5Fe-1.5Al: effect of grain size and strain rate, Mater. Sci. Eng., A, 2007, 452–453: 219.

    Google Scholar 

  11. Seagle S.R., The state of the USA titanium industry in 1995, Mater. Sci. Eng., A, 1996, 213(1–2): 1.

    Google Scholar 

  12. Ogawa M., Research and developement of low cost titanium alloys, J. Jpn. Inst. Light Met., 2005, 55(11): 549.

    Article  CAS  Google Scholar 

  13. Zhao Y.Q., Li Y.L., Wu H., Zhu K.Y., and Liu C.L., Research on low cost titanium alloys, Chin. J. Rare Met., 2004, 28(1): 66.

    CAS  Google Scholar 

  14. Gunawarman B., Niinomi M., Akahori T., Souma T., Ikeda M., Toda H., and Terashima K., Fatigue characteristics of low cost β titanium alloys for healthcare and medical applications, Mater. Trans. JIM., 2005, 46(7): 1570.

    Article  CAS  Google Scholar 

  15. Gunawarman B., Niinomi M., Akahori T., Souma T., Ikeda M., and Toda H., Mechanical properties and microstructures of low cost β titanium alloys for healthcare applications, Mater. Sci. Eng., C, 2005, 25(3): 304.

    Article  Google Scholar 

  16. Zeng W.D., and Zhou Y.G., Influence of cooling rate on microstructure and mechanical properties of beta processed TC11 alloy, Acta Metal. Sin., 2002, 38(12): 1273.

    CAS  Google Scholar 

  17. Ikeda M., Komatsu S., Ueda M., and Suzuki A., The effect of cooling rate from solution treatment temperature on phase constitution and tensile properties of Ti-4.3Fe-7.1Cr-3.0Al alloy, Mater. Trans. JIM., 2004, 45(5): 1566.

    Article  CAS  Google Scholar 

  18. Xin S.W., Zhao Y.Q., and Zeng W.D., Mechanism of V and Cr on mechanical properties of Ti40 burn resistant titanium alloy, Chin. J. Nonferrous Met., 2008, 18(7): 1216.

    CAS  Google Scholar 

  19. Ng H.P., Douguet E., Bettles C.J., and Muddle B.C., Age-hardening behaviour of two metastable beta-titanium alloys, Mater. Sci. Eng., A, 2010, 527(27): 7017.

    Google Scholar 

  20. Lou G.T., Sun J.K., Yang X.D., Chen L.P., Wang B., and Chen C.H., Effects of Al and Mo on mechanical properties of cast titanium alloys, Dev. Appl. Mater., 2003, 18(4): 32.

    CAS  Google Scholar 

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Authors and Affiliations

  1. State Key Laboratory for Fabrication & Processing of Nonferrous Metals, General Research Institute for Nonferrous Metals, Beijing, 100088, China

    Guo Wang, Songxiao Hui, Wenjun Ye, Xujun Mi, Yongling Wang & Wenjing Zhang

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  1. Guo Wang
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  2. Songxiao Hui
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  3. Wenjun Ye
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  4. Xujun Mi
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  5. Yongling Wang
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  6. Wenjing Zhang
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Correspondence to Songxiao Hui.

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Wang, G., Hui, S., Ye, W. et al. Microstructure and tensile properties of low cost titanium alloys at different cooling rate. Rare Met. 31, 531–536 (2012). https://doi.org/10.1007/s12598-012-0552-1

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  • DOI: https://doi.org/10.1007/s12598-012-0552-1

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