Non ferrous alloys

1. NON FERROUS ALLOYS Prof. TUSHAR A ANEYRAO SVPCET, Nagpur

2. Prof. Tushar A Aneyrao SVPCET, Nagpur

9. Mg alloys for automotive Prof. Tushar A Aneyrao SVPCET, Nagpur

62. Beta stabilizer Prof. Tushar A Aneyrao SVPCET, Nagpur

65. Ti alloy  Alpha stabilizers: C, O, N and Al  Beta Stabilizers: Cr, Fe, Pd, Co, Mn, H, V, Mo, Ta, Nb  Alpha alloys: Ti-5Al-2.5Sn, Ti-4al-1Mo  Beta alloys: Beta 21S (13%Mo),  Alpha + Beta alloys: Ti-6Al-4V,  ELI: extra low level Interstitials Prof. Tushar A Aneyrao SVPCET, Nagpur

74. TixAl Prof. Tushar A Aneyrao SVPCET, Nagpur

90. 20 • Particles impede dislocations. • Ex: Al-Cu system • Procedure: --Pt A: solution heat treat (get a solid solution) --Pt B: quench to room temp. --Pt C: reheat to nucleate small q crystals within a crystals. • Other precipitation systems: • Cu-Be • Cu-Sn • Mg-Al Adapted from Fig. 11.22, Callister 6e. (Fig. 11.22 adapted from J.L. Murray, International Metals Review 30, p.5, 1985.) Adapted from Fig. 11.20, Callister 6e. PRECIPITATION HARDENING Prof. Tushar A Aneyrao SVPCET, Nagpur

91. 21 • 2014 Al Alloy: • TS peaks with precipitation time. • Increasing T accelerates process. • %EL reaches minimum with precipitation time. Adapted from Fig. 11.25 (a) and (b), Callister 6e. (Fig. 11.25 adapted from Metals Handbook: Properties and Selection: Nonferrous Alloys and Pure Metals, Vol. 2, 9th ed., H. Baker (Managing Ed.), American Society for Metals, 1979. p. 41.) PRECIPITATE EFFECT ON TS, %EL Prof. Tushar A Aneyrao SVPCET, Nagpur

92. 24 • Hard precipitates are difficult to shear. Ex: Ceramics in metals (SiC in Iron or Aluminum). • Result: y ~ 1 S PRECIPITATION STRENGTHENING Prof. Tushar A Aneyrao SVPCET, Nagpur

93. 26 • Internal wing structure on Boeing 767 • Aluminum is strengthened with precipitates formed by alloying. Adapted from Fig. 11.24, Callister 6e. (Fig. 11.24 is courtesy of G.H. Narayanan and A.G. Miller, Boeing Commercial Airplane Company.) Adapted from Fig. 11.0, Callister 5e. (Fig. 11.0 is courtesy of G.H. Narayanan and A.G. Miller, Boeing Commercial Airplane Company.) 1.5mm APPLICATION: PRECIPITATION STRENGTHENING Prof. Tushar A Aneyrao SVPCET, Nagpur

Non ferrous alloys

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Non ferrous alloys