TY - GEN
T1 - New Ti-alloys with superior specific strength
AU - Gepreel, Mohamed Abdel Hady
AU - Niinomi, Mitsuo
PY - 2013/1/1
Y1 - 2013/1/1
N2 - In this study, new ultra-high strength Ti-alloys composing low cost common metals (i.e., Fe, Mn, Al, and Sn) are developed. In the present new alloys, the beta-phase was the predominant phase in the annealed condition and showed moderate tensile strength (UTS) in the range of 800 ÷ 950 MPa where the fracture strain was below 4 %. After sever cold rolling followed by aging treatments, the UTS of the alloys were greatly increased and achieved values higher than 1900 MPa where the elongation was less than 1 %. Further increase in the ductility of the alloys is possible with the proper heat treatments on the expense of the strength. The ultra-high strength of the present new Ti-alloys make them competitive to high specific strength alloys because of its good cold workability and low cost.
AB - In this study, new ultra-high strength Ti-alloys composing low cost common metals (i.e., Fe, Mn, Al, and Sn) are developed. In the present new alloys, the beta-phase was the predominant phase in the annealed condition and showed moderate tensile strength (UTS) in the range of 800 ÷ 950 MPa where the fracture strain was below 4 %. After sever cold rolling followed by aging treatments, the UTS of the alloys were greatly increased and achieved values higher than 1900 MPa where the elongation was less than 1 %. Further increase in the ductility of the alloys is possible with the proper heat treatments on the expense of the strength. The ultra-high strength of the present new Ti-alloys make them competitive to high specific strength alloys because of its good cold workability and low cost.
KW - High strength
KW - Low cost
KW - Thermomechanical treatments
KW - Ti-alloys
UR - http://www.scopus.com/inward/record.url?scp=84923253963&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84923253963&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84923253963
T3 - METAL 2013 - 22nd International Conference on Metallurgy and Materials, Conference Proceedings
SP - 1319
EP - 1322
BT - METAL 2013 - 22nd International Conference on Metallurgy and Materials, Conference Proceedings
PB - TANGER Ltd.
T2 - 22nd International Conference on Metallurgy and Materials, METAL 2013
Y2 - 15 May 2013 through 17 May 2013
ER -