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Study on High Strength Ti-Al-V Alloy at Cryogenic Temperature

P K Mandal, Alex Joseph, Colin Siby, Jithin Devasia


The α+β type high strength titanium alloy is usually used as a structural biomaterial for the manufacturing of orthopaedic prostheses as well as surgical and dental implants. The Ti-Al-V alloy had been deliberately solution treated at 860°C for 1 h (subsequently quenched in variable mediums) just below the β transus but within the α+β region to avoid grain coarsening for single β region as well as accomplish optimum balance properties of ductility and strength. It was found that during solution treatment plus subsequently age hardening treatment at 500°C for 5 h (STA) decomposition taking place from low modulus martensite and retained β phases into high modulus α phases (70–75 GPa). Meanwhile, the aged titanium alloy was examined through light optical microscopy, SEM with EDS analysis, Vicker’s hardness measurements, tensile properties and SEM with EDS fractography analysis. The better tensile properties have been achieved after ageing treatment in CT (i.e., specially quenching in water and cryogenic temperature (CT) after solution treatment) such as hardness of 408.8.3±8.3 HV, UTS of 1132 MPa, YS of 746 MPa, El of 3.0%, RA of 4.43%, respectively. The strength can be attributed to the fine precipitates of α phase as results of decomposition of martensite, carbo-nitride and retained β phases. The main reason for better strengthening of the present CT titanium alloy is the transformation of metastable β phase into needle shape α' martensite which results in reduction of β phases in the microstructure after ageing treatment.

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Rack H J, Qazi J I. “Titanium alloys for biomedical applications”, Materials Science and Engineering: C, Vol. 26, Issue 8, September

, pp.1269-1277.

Elias C N, J.H.C. Lima J H C, Valiev R, Meyers M A. “Biomedical Applications of Titanium and its Alloys”, Biological Materials

Science, JOM, March 2008, pp. 46-49.

Kulkarni M, Mazare A, Gongadze E, Perutkova S, Kralj-Iglic V, Milosev I, Schmuki P, A Iglic, Mozetic M. “Topical Review

Titanium nanostructures for biomedical applications”, Nanotechnology, 26, 2015, pp. 1-19.

Niinomi M. “Mechanical properties of biomedical titanium alloys”, Materials Science and Engineering, A243, 1998, pp. 231-236.

Niinomi M. “Recent research and development in titanium alloys for biomedical applications and healthcare goods”, Science and

Technology of Advanced Materials, 4, 2003, pp. 445-454.

Mohammad MT, Khan ZA, Siddiquee AN.“Beta Titanium Alloys: The Lowest Elastic Modulus for Biomedical Applications: A

Review”, World Academy of Science,Engineering and Technology, InternationalJournal of Materials and Metallurgical Engineering, Vol. 8, No.: 8, 2014, pp. 822-827.

Wang K. “The use of titanium for medical applications in the USA”, Materials Science and Engineering, A213, 1996, pp. 134-137.

Fan Y, Tian W, Guo Y, Sun Z, Xu J. “Relationships among the Microstructure, Mechanical Properties, and Fatigue Behaviour in

Thin Ti6Al4V”, Advances in Materials Science and Engineering, 2016, pp. 1-9.

Carquigny S, Takadoum J, Ivannescu S. “Comparative study of nitrogen implantation effect on mechanical and tribological properties

of Ti-6Al-4V and Ti-10Zr-10Nb-5Ta alloys”, The European Physical Journal Applied Physics, 85, 2019, pp. 1-6.


TITANIUM ALLOYS”, Journal of Marine Science and Technology, Vol. 24, No. 2, 2016, pp. 99-106.

Koizumi H, Takeuchi Y, Imai H, Kawai T, Yoneyama T. “Application of titanium and titanium alloys to fixed dental prostheses”,

Journal of Prosthodontic Research, 63, 2019, pp. 266-270.

Qing L, Qingkun M, Shun G, Xinqing Z. “αˈ Type Ti-Nb-Zr alloys with ultra-low Young’s modulus and high strength”, Progress in Natural Science: Materials International, 23(6), 2013, pp. 562-565.

Lee D B, Pohrelyuk I, Yaskiv O, Lee J C. “Gas nitriding and subsequent oxidation of Ti- 6Al-4V alloys”, Nanoscale Research Letters, 7:21, 2012, pp. 1-5.

Shaikh A, Kumar S, Dawari A, Kirwari S, Patil A, Singh R. “Effect of Temperature and Cooling Rates on the α+β Morphology of Ti-

Al-4V Alloy”, Procedia Structural Integrity, 14, 2019, pp. 782-789.

Gu K, Li Z, Wang J, Zhou Y, Zhang H, Zhao B, Ji W. “The Effect of Cryogenic Treatment on the Microstructure and Properties of Ti-6Al-4V Titanium Alloy”, Materials Science Forum, Vols. 747-748, pp. 899-903.

Oh S-T, Woo K-D, Kim J-H, Kwak S-M. “The effect of Korean Journal of Metals and Materials, The effect of Al and V on Microstructure and Transformation of β Phase during Solution Treatments of Cast Ti-6Al-4V Alloy”, Korean Journal of Metals and

Materials, Vol. 55, No. 3, 150-155.

John J, Nagarajan N M. “Age hardening Treatment of Ti-6Al-4V alloy dome for Aerospace Application”, International Journal

of Innovation Science, Engineering & Technology, Vol. 2, Issue 8, August 2015, 342- 346.

Wang P, Wu L, Feng Y, Bai J, Zhang B, Song J, Guan S. “Microstructure and mechanical properties of a new developed low Young’s modulus Ti-15Zr-5Cr-2Al biomedical alloy”,

Materials Science and Engineering C, 72, 2017, pp. 536-542.

Rui T, Li H, Qi Z, Bo Z. “Cutting PropertiesAnalysis of Titanium Alloy (Ti-6Al-4V) Based on Cryogenic Cooling”, The Open Materials

Science Journal, 8, 2014, pp. 122-126.

Tan M.H.C, Baghi A D, Ghomashchi R, Xiao W. “Effect of niobium content on the microstructure and Young’s modulus of Ti-xNb-

Zr alloys for medical implants”, Journal of the Mechanical Behaviour and Biomedical Materials, 99, 2019, pp.78-85.

Reda R, Nofal A A, Hussein A-H A. “Effect of Quenchin Temperature on the Mechanical Properties of Cast Ti-6Al-4V Alloy”, Journal ofMetallurgical Engineering (ME), Vol. 2, Issue1,

January 2013, pp. 48-54.

Hu Z, Zheng H, Liu G, Wu H, Effects of Cyrogenic Treatments after Annealing of Ti- 6Al-4V Alloy Sheet on Its Formability at Room

Temperature”, Metals, 8, 295, 2018, pp. 1-16.

Motyka M, “Review Martensite Formation and Decomposition during Traditional and AM Processing of Two-Phase Titanium Alloys-An

Overview”, Metals, 11, 481, 2021, pp. 1-17.

Morita T, Hatsuoka K, Iizuka T, Kawasaki K, “Strengthening of Ti-6Al-4V Alloy by Short- Time Duplex Heat Treatment, Materials

Transactions, Vol. 46, No. 7, 2005, pp. 1681- 1686.

Fan Y, Tian W, Guo Y, Sun Z, Xu J. “Relationships among the Microstructure, Mechanical Properties, and Fatigue Behaviour in

Thin Ti6Al4V”, Advances in Materials Science and Engineering, 2016, pp. 1-9.

Ng H P, Douguet E, Bettles C J, Muddle B C, “Age-hardening behaviour of two metastable beta-titanium alloys”, Materials Science and Engineering A, 2010, pp. 1-10.

Feng Z, Yang Y, Xu Z, Shi Q. “Effect of Martensitic Transformation on Elastic Modulus Anisotrophy of Ti-6Al-4V Alloy”, Materials

Research, 21, 4, 2018, pp. 1-8.

K.X. Gu, J.J. Wang, Z. Yuan, H. Zhang, Z.Q. Li, B. Zhao. “Effect of cryogenic treatment on the plastic property of Ti-6Al-4V titanium

alloy”, Advances in Cryogenic Engineering, 42- 47, 2014, pp. 42-47.

Gupta RK, Mathew C, Ramkumar P. “Strain Hardening in Aerospace Alloys”, Frontiers in Aerospace Engineering, Vol. 4, No. 1, May2015, pp. 1-13.

Vasudevan D, Balashanmugam P. “Study on the thermal behaviour on titanium alloys (Ti-6Al-4V)”, Journal of Engg. Science and Technology, Vol. 12, No. 8, 2017, pp. 2064-

Oh S-T, Woo K-D, Kim J-H, Kwak S-M, “The effect of Al and V on Microstructure and Transformation of β Phase during Solution

Treatments of Cast Ti-6Al-4V Alloy, Korean Journal of Metals and Materials, Vol. 55, No. 3, pp. 150-155.

Omoniyi P O, Akinlabi E T, Mohammod R M. “Heat Treatments of Ti6Al4V Alloys for Industrial Applications: An Overview”,

Materials Science and Engineering, 1107, 2021, pp. 1-7.

Dumasia A, V.A. Kulkarni V A, Sonai K. “A Review on the Effect of Cryogenic Treatment on Metals”, International Research Journal of

Engineering and Technology (IRJET), Vol. 04, Issue 07, July 2017, pp. 2402-2406.

Razavykia A, Delprete C, Baldissera P. “Correlation between Microstructural Alteration, Mechanical Properties and Manufacturability

after Cryogenic Treatments: A Review”, Materials, 12, 3302, 2019, pp. 1-36.


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