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Rare Metals

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Microstructure and property of laser additive manufactured alloy Ti–6Al–2V–1.5Mo–0.5Zr–0.3Si after aged at different temperatures

  • Guo-Chao Li
  • Xu ChengEmail author
  • Hua-Ming Wang
Article
  • 27 Downloads

Abstract

The solid solution and aging treatment for conventional manufacturing processes might not be suitable for laser additive manufactured titanium alloys due to the different lamellar microstructures. In this study, the influence of aging temperatures (600, 700 and 800 °C) on microstructure and mechanical properties of titanium alloy Ti–6Al–2V–1.5Mo–0.5Zr–0.3Si was investigated. The results indicate that after solid solution treatment at 970 °C followed by water quenching, the alloy mainly consists of coarsening lamellar α phase in martensite α′ matrix. Aging at 600 °C will not change the size of primary lamellar α phase but lead to huge amount of secondary α phases (αs) generating with very fine microstructure. By increasing the aging temperature, the number of αs decreases but with coarsened microstructures. When aged at 800 °C, the width of the αs phase reaches 350 nm, almost 7 times wider than that aged at 600 °C. The changing size of αs obviously influences the property of the alloy. The fine αs leads to high strength and microhardness but low plasticity, and specimen aged at 700 °C with suitable αs size has the best comprehensive properties.

Keywords

α + β titanium alloy Laser additive manufacturing Solid solution and aging treatment Microstructure Room temperature tensile property 

Notes

Acknowledgements

This study was financially supported by the Beijing Municipal Science and Technology Project (No. Z171100000817002), the Young Elite Scientist Sponsorship Program by CAST and the National Key Research and Development Program of China (No. 2016YFB1100401).

References

  1. [1]
    Leyens C, Peter M. Titanium and Titanium Alloys. Weinheim: Die Deutsche Bibliothek; 2006. 18.Google Scholar
  2. [2]
    Lutjering G, Willams JC. Titanium. 2nd ed. Berlin: Springer; 2007. 13.Google Scholar
  3. [3]
    Zhang XY, Zhao YQ, Bai CG. Titanium Alloy and Application. Beijng: Chemical Industry Press; 2005. 287.Google Scholar
  4. [4]
    Singh P, Pungotra H, Kalsi NS. On the characteristics of titanium alloys for the aircraft applications. Mater Today. 2017;4(8):8971.CrossRefGoogle Scholar
  5. [5]
    Roger RR. An overview on the use of titanium in the aerospace industry. Mater Sci Eng A. 1996;213(1–2):103.Google Scholar
  6. [6]
    Banerjee D, Williams JC. Perspectives on titanium science and technology. Acta Mater. 2013;61(3):844.CrossRefGoogle Scholar
  7. [7]
    Moiseyev VN. Titanium Alloys: Russian Aircraft and Aerospace Applications. Encycl Aerosp Eng. 2005. 149.Google Scholar
  8. [8]
    Li J, Wang HM. Aging response of laser melting deposited Ti–6Al–2Zr–1Mo–1V alloy. Mater Sci Eng A. 2013;560:193.CrossRefGoogle Scholar
  9. [9]
    Huaming W. Materials’ fundamental issues of laser additive manufacturing for high-performance large metallic components. CJA. 2014;35(10):2699.Google Scholar
  10. [10]
    Herderick ED. Additive manufacturing in the minerals, metals, and materials community: past, present, and exciting future. JOM. 2016;68(3):721.CrossRefGoogle Scholar
  11. [11]
    Hao Y-L, Li S-J, Yang R. Biomedical titanium alloys and their additive manufacturing. Rare Met. 2016;35(9):661.CrossRefGoogle Scholar
  12. [12]
    Hu LF, Li J, Lv YH. Corrosion behavior of laser-clad coatings fabricated on Ti6Al4V with different contents of TaC addition. Rare Met. 2017.  https://doi.org/10.1007/s12598-017-0973-y.CrossRefGoogle Scholar
  13. [13]
    Eyers DR, Potter AT. Industrial additive manufacturing: a manufacturing systems perspective. Comput Ind. 2017;92–93:208.CrossRefGoogle Scholar
  14. [14]
    Tian XJ, Zhang SQ, Li A, Wang HM. Effect of annealing temperature on the notch impact toughness of a laser melting deposited titanium alloy Ti–4Al–1.5Mn. Mater Sci Eng A. 2010;527(7-8):1821.CrossRefGoogle Scholar
  15. [15]
    Li C, Chen J, Li W, Ren YJ, He JJ, Song ZX. Effect of heat treatment variations on the microstructure evolution and mechanical properties in a β metastable Ti alloy. J Alloys Compd. 2016;684:466.CrossRefGoogle Scholar
  16. [16]
    Keist JS, Palmer TA. Role of geometry on properties of additively manufactured Ti–6Al–4V structures fabricated using laser based directed energy deposition. Mater Des. 2016;106:482.CrossRefGoogle Scholar
  17. [17]
    Sieniawski J. Titanium Alloys-Advances in Properties Control. Rijeka: InTech; 2013. 45.CrossRefGoogle Scholar
  18. [18]
    Luo J, Ye P, Li MQ, Liu LY. Effect of the alpha grain size on the deformation behavior during isothermal compression of Ti–6Al–4V alloy. Mater Des. 2015;88:32.CrossRefGoogle Scholar
  19. [19]
    Mikler CV, Chaudhary V, Borkar T, Soni V, Jaeger D, Chen X, Contieri R, Ramanujan RV, Banerjee R. Laser additive manufacturing of magnetic materials. JOM. 2017;69(3):532.CrossRefGoogle Scholar
  20. [20]
    Kelly SM. Microstructural evolution in laser-deposited multilayer Ti–6Al–4V builds part 1: microstructural characterization. Metall Mater Trans A. 2004;35(6):1861.CrossRefGoogle Scholar
  21. [21]
    Sridharan N, Chaudhary A, Nandwana P, Babu SS. Texture evolution during laser direct metal deposition of Ti–6Al–4V. JOM. 2016;68(3):772.CrossRefGoogle Scholar
  22. [22]
    Lu Y, Tang HB, Fang YL, Liu D, Wang HM. Microstructure evolution of sub-critical annealed laser deposited Ti–6Al–4V alloy. Mater Des. 2012;37:56.CrossRefGoogle Scholar
  23. [23]
    Beese AM, Carroll BE. Review of mechanical properties of Ti–6Al–4V made by laser-based additive manufacturing using powder feedstock. JOM. 2016;68(3):724.CrossRefGoogle Scholar
  24. [24]
    Marshall GJ, Young WJ, Thompson SM, Shamsaei N, Daniewicz SR, Shao S. Understanding the microstructure formation of Ti–6Al–4V during direct laser deposition via in-situ thermal monitoring. JOM. 2016;68(3):778.CrossRefGoogle Scholar
  25. [25]
    Zhu Y, Liu D, Tian X, Tang H, Wang H. Characterization of microstructure and mechanical properties of laser melting deposited Ti–6.5Al–3.5Mo–1.5Zr–0.3Si titanium alloy. Mater Des. 2014;56:445.CrossRefGoogle Scholar
  26. [26]
    Liu CM, Wang HM, Tian XJ, Tang HB, Liu D. Microstructure and tensile properties of laser melting deposited Ti–5Al–5Mo–5V–1Cr–1Fe near β titanium alloy. Mater Sci Eng A. 2013;586:323.CrossRefGoogle Scholar
  27. [27]
    Liu C, Yu L, Zhang A, Tian X, Liu D, Ma S. Beta heat treatment of laser melting deposited high strength near β titanium alloy. Mater Sci Eng A. 2016;673:185.CrossRefGoogle Scholar
  28. [28]
    Li GC, Li J, Tian XJ, Cheng X, He B, Wang HM. Microstructure and properties of a novel titanium alloy Ti–6Al–2V–1.5Mo–0.5Zr–0.3Si manufactured by laser additive manufacturing. Mater Sci Eng A. 2017;684:233.CrossRefGoogle Scholar
  29. [29]
    Imayev VM, Gaisin RA, Gaisina ER, Imayev RM. Microstructure, processing and mechanical properties of a titanium alloy Ti–20Zr–6.5Al–3.3Mo–0.3Si–0.1B. Mater Sci Eng A. 2017;696:137.CrossRefGoogle Scholar
  30. [30]
    China Materials Engineering Canon. Nonferrous Metal Material Engineering. Beijing: Chemical Industry Press; 2006. 85.Google Scholar
  31. [31]
    Zhong QP, Zhao ZH. Crack. Beijing: Higher Education Press; 2014. 12.Google Scholar

Copyright information

© Journal Publishing Center of University of Science and Technology, Beijing and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.National Engineering Laboratory of Additive Manufacturing for Large Metallic Components and Engineering Research Center of Ministry of Education on Laser Direct Manufacturing for Large Metallic Components, School of Materials Science and EngineeringBeihang UniversityBeijingChina

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