Unit 2 engineering materials

... UNIVERSITY OF INDUSTRY Rear window 18 Side window 19 Aerial 17 20 Wing mirror 16 Badge Number plate 21 27 22 Door handle 26 Door 23 25 Rear light 24 Boot Rear bumper Exhaust pipe HOCHIMINH UNIVERSITY ... Bonnet Sunroof Petrol cap/flap 15 Logo Wheel trim 14 Headlight Front bumper 10 Indicator Wing 11 13 12 Wheel arch Sill HOCHIMINH UNIVERSITY OF INDUSTRY Tire Practice 1b Aerial ['eəri...

Ngày tải lên: 15/03/2014, 15:20

... 1994 J Li, J W Mayer, Y Shacham-Diamand, E G Colgan, Appl Phys Lett 60 29 83(19 92) D Adams, and T L Alford, Materials Science and Engineering: Reports 40, 20 7 (20 03) T Iijima, H Ono, N Ninomiya, ... a particle of mass M1 and initial energy E0 and a target atom of mass M2 After the collision the projectile and target atoms have energies of E1 and E2, respectively 2. 2 .2...

Ngày tải lên: 08/08/2014, 17:20

... used in the design calculations; that * Design for Manufacture and Design for Assembly 12 Materials Selection in Mechanical Design Fig 2. 4 The design flow chart, showing how design tools and materials ... and shape selection in mechanical design: the interaction between 14 Materials Selection in Mechanical Design and the greater the interactions It...

Ngày tải lên: 11/08/2014, 02:21

... 50 17 0 6 20 18 09 17 65 15 70 17 50 16 80 14 03 456 4 82 460 460 500 78 60 40 40 12 30 12 12 12 12 10 18 0.5–0.9 0.5 0.5 >10 0 30 10 0 30 10 0 13 56 11 90 1 12 0 385 397 12 1 85 17 20 19 >10 0 >10 0 >10 0 1 728 16 00 ... 16 00 15 50 450 420 450 89 22 11 13 14 12 0 .1 0.5 0 .1 0.45 0 .1 0 .25 0 .1 0.35 0 .1 0 .17 0. 01 0 .15 45 45 10 –50 30–40 20 –70 5–30 933 9...

Ngày tải lên: 11/08/2014, 02:22

... range (°C) Typical uses 62 Sn + 38 Pb 183 50 Sn + 50 Pb 183 21 2 35 Sn + 65 Pb Sn + 1.5 Ag + 93.5 Pb 42 Ag + 19 Cu + 16 Zn + 25 Cd 38 Ag + 20 Cu + 22 Zn + 20 Cd 183 24 4 29 6–301 Joints in copper ... Answers: eutectic at 650°C: L(31% Sb) = α( 12% Sb) + β( 32% Sb) eutectic at 520 °C: L(77% Sb) = Cu2Sb + δ(98% Sb) eutectoid at 420 °C: β( 42% Sb) = ε(38% Sb) + Cu2Sb 3.4 A copper-antimony...

Ngày tải lên: 11/08/2014, 02:22

... = 1 .22 kJ kg−1 (or 22 J mol−1) kg of water at 27 2 K thus has 1 .22 kJ of free work available to make it turn into ice The reverse is true at 27 4 K, of course, where each kg of ice has 1 .22 kJ ... per unit area Conservation of volume gives 4 πr = πr + πr 3 (5 .30 ) Combining eqns (5 .29 ) and (5 .30 ) gives ∆A = 4π γ [(r + r ) 2/ 3 − (r + r )] 2 (5 .31 ) For r1/r2 in the range to...

Ngày tải lên: 11/08/2014, 02:22

... = 910 2 αβ (9 14 + 27 3) 2 αβ = × 29 7 ∆ H (9 14 − 910) ∆H (8 .4) But at 900°C the critical radius is r* = 900 2 αβ (9 14 + 27 3) 2 αβ = × 85 ∆ H (9 14 − 900) ∆H (8.5) Thus (r*10 /r*00) = (29 7/85) ... volume of the nucleus For ഛ θ ഛ 90° these are: = 2 r 2( 1 − cos θ ); (7 .4) catalyst–solid area = π r 2( 1 − cos2 θ ); (7.5) solid–liquid area nucleus volume = 2 r 3   1 − cos...

Ngày tải lên: 11/08/2014, 02:22

... (°C) 2. 7 1.7 4 .5 (7.9) 71 45 120 (21 0) 25 –600 70 27 0 170– 128 0 (22 0–1600) 26 25 27 27 3.1 4.0 2. 4 1.8 1 .5 2. 1 1.1 0. 75 9 22 0 41–160 38 28 0 28 20 0 150 25 0 150 25 0 400–600 (400–600) * See Chapter 25 ... Alloy wt% Mg sy(MPa) (annealed condition) 50 05 5 050 50 52 54 54 50 83 54 56 0.8 1 .5 2. 5 2. 7 4 .5 5.1 40 55 90 120 supersaturated 1 45 160 as i...

Ngày tải lên: 11/08/2014, 02:22

... Mo Ni 0.30 0.40 0. 36 0.40 0.41 0.40 0.40 0.80 0 .60 0.70 0 .60 0.85 0 .65 0 .60 0.50 1 .20 1.50 1 .20 0.50 0.75 0 .65 0 .20 0.30 0 .25 0.15 0 .25 0 .25 0.55 0.55 1.50 1.50 1.50 0.55 0.85 2. 55 [Hint: there ... Mn 0 .25 to 0 .66 %, Si թ 0.50%, Cr 1.88 to 2. 62 % , Mo 0.85 to 1.15%; σ TS 515 to 69 0 MPa; σy ը 310 MPa The carbon equivalent for the maximum composition figures given is CE = 0....

Ngày tải lên: 11/08/2014, 02:22

... 84 28 0 – 1.0 (1400) 800 22 0 – 10 40 40 10 10 – 3–5 – 4– 12 – 23 23 (1 470 ) 3110 – 21 73 – 28 43 – – – 510 79 5 1 422 6 27 670 71 0 70 25 .6 84 17 1.5 20 25 40 40 0 .2 0 .2 – – – – 1.8 – – – 0.9 – – 27 3 (25 0) ... (MPa) 74 65 1000 120 0 50 55 70 350 45 3. 52 3.9 3 .2 3 .2 5.6 3 .2 1050 380 410 310 20 0 300 5000 3000 20 00 120 0 20 00 20 00 – 300–400 20 0–500 300–...

Ngày tải lên: 11/08/2014, 02:22

... Press, 197 9 W E C Creyke, I E J Sainsbury, and R Morrell, Design with Non-ductile Materials, Applied Science Publishers, 19 82 D W Richardson, Modern Ceramic Engineering, Marcel Dekker, 19 82 Problems ... near 120 0°C The final microstructure shows particles of filler surrounded by particles of mullite (the reaction product of SiO2 and Al2O3 in the clay) all bonded together by the glass...

Ngày tải lên: 11/08/2014, 02:22

... – 420 1500 1900 0 .2 0 .2 0 .25 54– 72 80–95 0.6–1.0 0.5 – 380 340 – 400 – 440 420 – 440 370 –550 1700 20 00 120 0 24 00 1500 –1700 0 .2 0.5 0 .2 0 .24 0. 12 0 .24 55–90 50 100 26 –60 – – – 22 0 171 20 0 ... coefficient (MK −1) 1 2 2–5 27 0 300 355 390 22 50 21 00 0.35 0. 52 160 –190 150 –300 3.5 – 25 3 – 310 395 1900 105 0 0 .2 0 .25 100 –300 70 100 2. 4 370 350 370 370 1350 –...

Ngày tải lên: 11/08/2014, 02:22

... (MPa m1 /2 ) E/r E1 /2/ r E1/3/r sy /r 1.5 2. 0 1.4 189 48 76 1050 124 0 124 0 32 45 42 60 – 126 24 54 3.5 6 .2 3.8 1.8 3.0 700 620 886 7.8 2. 8 20 7 71 1000 500 100 28 27 25 1.8 3.0 0.76 1.5 128 179 Composites: ... Type2 Cellulose fibres Glass (E-glass) Kevlar Matrices Epoxies Polyesters Density r (Mg m−3 ) Modulus E(GPa) Strength sf (MPa) 1.95 1.75 1.61 2. 56 1.45 390 25 0 60 76 1...

Ngày tải lên: 11/08/2014, 02:22

... cheaper Table 26 .4 Specific strength of structural materials Material E r sy r KIC r Woods Al-alloy Mild steel Concrete 20 –30 25 26 15 120 –170 179 30 1– 12 8–16 18 0.08 28 6 Engineering Materials Further ... area is 27 0 Engineering Materials Fig 25 .6 Fibres toughen by pulling out of the fracture surface, absorbing energy as the crack opens Gc = π dσ sm Vf m 4Vf l2 × =...

Ngày tải lên: 11/08/2014, 02:22