TY - JOUR
T1 - Robust mechanical properties and corrosion resistance of new low-cost hot-forged and aged β-type Ti–14Mn–(x)Zr alloys
AU - Awad, Ahmed H.
AU - El-Hofy, Hassan A.
AU - Chiba, Akihiko
AU - Gepreel, Mohamed Abdel Hady
N1 - Funding Information:
The first author acknowledges the Central Department of Missions (CDM) under the Cultural Affairs and Missions Sector at the Ministry of Higher Education (MoHE) of Egypt for funding this work (through a Ph.D. scholarship) and the Japan International Cooperation Agency (JICA) for providing the tools and facilities required to conduct this work. The authors gratefully acknowledge Eng. Yağız Akyildiz and Onatus Öngörü Teknolojileri for their help with thermodynamics calculations using Thermo-Calc software.
Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/5/25
Y1 - 2022/5/25
N2 - Low-cost β-type Ti–14Mn–(x)Zr (x = 0, 3, or 6 wt%) alloys were developed and prepared using single-electrode arc furnace, and the effects of the zirconium (Zr) content and thermomechanical treatment on the phase stability, microstructural evolution, hardness, compressive stress, and corrosion resistance of the alloys were studied. The alloy thickness was reduced by approximately 45% by hot forging at 900 °C and were then water quenched and subsequently aged at 500 or 700 °C for different times. The combination of the proper Zr content, hot forging, and aging improved the alloy hardness, strength, and ductility. The dual (α + β) structure formed in the 6Zr alloy forged and then aged at 700 °C for 60 ks resulted in a high compressive yield stress of 1127 MPa and malleability above 70%. The forged and annealed alloys exhibited superior properties to commercial Ti–6Al–4 V (lower cost, corrosion resistance, and mechanical properties). The study findings elucidate the relationship between the composition and processing properties of low-cost Ti–14Mn–(x)Zr alloys for potential biomedical applications.
AB - Low-cost β-type Ti–14Mn–(x)Zr (x = 0, 3, or 6 wt%) alloys were developed and prepared using single-electrode arc furnace, and the effects of the zirconium (Zr) content and thermomechanical treatment on the phase stability, microstructural evolution, hardness, compressive stress, and corrosion resistance of the alloys were studied. The alloy thickness was reduced by approximately 45% by hot forging at 900 °C and were then water quenched and subsequently aged at 500 or 700 °C for different times. The combination of the proper Zr content, hot forging, and aging improved the alloy hardness, strength, and ductility. The dual (α + β) structure formed in the 6Zr alloy forged and then aged at 700 °C for 60 ks resulted in a high compressive yield stress of 1127 MPa and malleability above 70%. The forged and annealed alloys exhibited superior properties to commercial Ti–6Al–4 V (lower cost, corrosion resistance, and mechanical properties). The study findings elucidate the relationship between the composition and processing properties of low-cost Ti–14Mn–(x)Zr alloys for potential biomedical applications.
KW - Aging
KW - Compressive strength
KW - Corrosion resistance
KW - Hot forging
KW - Phase stability
KW - Zr content
KW - β-Ti alloy
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U2 - 10.1016/j.jallcom.2022.164098
DO - 10.1016/j.jallcom.2022.164098
M3 - Article
AN - SCOPUS:85124183733
SN - 0925-8388
VL - 904
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
M1 - 164098
ER -