Titanium ME 372 Design File Presentation December 12, 2001 Doug Espenschied Abe Sego.

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Presentation transcript:

Titanium ME 372 Design File Presentation December 12, 2001 Doug Espenschied Abe Sego

Titanium Material Properties Production Applications Sources

Material Properties Pure Titanium S ut = MPa S y = MPa Se = 0.5 S ut E  110 GPa G  45 GPa Density: 4500 kg/m 3 Melting Point: 1668  C Titanium Alloys S ut = MPa S y = Mpa Se = S ut Common Alloy Elements –Aluminum –Copper –Manganese –Molybdenum –Tin –Vanadium –Zirconium

Production Rutile OreSpongeIngot

Production Machineabilty Can be done economically Bad stories from aircraft alloys (350+ BHN) Must consider physical properties Comparable to 316 stainless steel Beware of surface finish for fatigue life Formability Hot vs. Cold Forming Similar to stainless steel Weldability Similar to nickel alloys and stainless steels GTAW, GMAW, electron beam, laser, and friction welding

Application Ti JIS 3Ti–8 Al-6 V-2 Sn 6061 Al HT 1040 Steel Cold Rolled Stainless 316 S y (MPa) S ut (MPa) E (GPa)  (kg/m 3) HB/ HR 110 HB39 HRC95 HB170 HB85HRB

Application Advantages Strength to weight ratio Low density Exceptional corrosion resistance Excellent elevated temperature properties Low thermal expansion coefficient High melting point Shock/ballistic resistance Nontoxic, hypo allergenic Disadvantages Material Cost Production Cost Production complexity

Applications

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