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

2. Titanium Material Properties Production Applications Sources

3. Material Properties Pure Titanium S ut = 270-750 MPa S y = 165-485 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 = 350-1200 MPa S y = 200-1170 Mpa Se = 0.4-0.65 S ut Common Alloy Elements –Aluminum –Copper –Manganese –Molybdenum –Tin –Vanadium –Zirconium

4. Production Rutile OreSpongeIngot

5. 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

6. Application Ti JIS 3Ti–8 Al-6 V-2 Sn 6061 Al HT 1040 Steel Cold Rolled Stainless 316 S y (MPa) 345+1069276490276 S ut (MPa) 480- 620 1138310586721 E (GPa) 104.3113.871.7206.8189.6  (kg/m 3) 4510440028007800 HB/ HR 110 HB39 HRC95 HB170 HB85HRB

7. 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

8. Applications

9. WWW Commercial Sites http://www.titanium.com http://www.rti-intl.com http://www.fusheng.com http://www.supraalloys.com http://www.toho-titanium.co.jp Academic Sites http://www.tech.plymouth.ac.uk/sme/desnotes/titanium.ht mhttp://www.tech.plymouth.ac.uk/sme/desnotes/titanium.ht m http://www.ulib.org/webRoot/Books/National_Academy_P ress_Books/titanium/titan001.htmhttp://www.ulib.org/webRoot/Books/National_Academy_P ress_Books/titanium/titan001.htm