TY - JOUR
T1 - Preparation of strong and ductile pure titanium via two-step rapid sintering of TiH2 powder
AU - Sharma, Bhupendra
AU - Vajpai, Sanjay Kumar
AU - Ameyama, Kei
N1 - Funding Information:
This research was supported by the Grant-in-Aid for Scientific Research on Innovative area, Bulk Nanostructured Metals through MEXT, Japan (contract No. 22102004 ). These supports are gratefully appreciated.
Publisher Copyright:
© 2016 Elsevier B.V. All rights reserved.
PY - 2016/10/25
Y1 - 2016/10/25
N2 - The present work demonstrates the feasibility of preparing bulk-Ti, with high strength and good ductility, via spark plasma sintering of TiH2 powders. The microstructure and mechanical properties of bulk titanium prepared under two different processing conditions, i.e. (i) Simultaneous dehydrogenation and sintering under one-step spark plasma sintering (SPS), and (ii) dehydrogenation in vacuum followed by Spark Plasma Sintering i.e. two-step SPS, are presented and discussed. The one-step sintering process, i.e. process (i), resulted in Ti specimens with very high tensile strength, but poor ductility. On the other hand, two-step sintering process, i.e. process (ii), resulted in bulk Ti with high strength and high ductility.
AB - The present work demonstrates the feasibility of preparing bulk-Ti, with high strength and good ductility, via spark plasma sintering of TiH2 powders. The microstructure and mechanical properties of bulk titanium prepared under two different processing conditions, i.e. (i) Simultaneous dehydrogenation and sintering under one-step spark plasma sintering (SPS), and (ii) dehydrogenation in vacuum followed by Spark Plasma Sintering i.e. two-step SPS, are presented and discussed. The one-step sintering process, i.e. process (i), resulted in Ti specimens with very high tensile strength, but poor ductility. On the other hand, two-step sintering process, i.e. process (ii), resulted in bulk Ti with high strength and high ductility.
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U2 - 10.1016/j.jallcom.2016.05.020
DO - 10.1016/j.jallcom.2016.05.020
M3 - Letter
AN - SCOPUS:84969132616
VL - 683
SP - 51
EP - 55
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
ER -