ME 2733 NOTES 3

ME 2733 NOTES 3 - 22-141 EU SHEETS 224-12 ml BHEETS 22-1 4-1 200 5{EEITS 122"@fixair if M 00000 a i I “fl'wvfi i c o o o WWWA/w 43 W 33W

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Unformatted text preview: 22-141 EU SHEETS 224-12 ml: BHEETS 22-1 4-1 200 5! {EEITS 122'." . @fixair if M 00000 a i . I . “fl'wvfi i ; c o o o WWWA/w ; 43% W 33W Wm I fi E I Egg-M Lambmmi :' 5;; Email 4T1 i‘? (exam; FCC, 21113 Army? hf P (000:) irrio7 Hxaif c, Ixis, =F 6C1. ' m HCP and F41: w W? pm”; - v LOUlSlrftNa STATE UNIVERSITY Mechanical Engineering Department Professor Meletis ME 21:33 Spring 2on4 Quiz #1 Name: State or circle the correct answers 1. In general, metals with high melting point have:@ high elastic modulus; (b) high thermal expansion eoeffieient;((_c’})high energy o vacancyr formation; (d) shallow potential wells. C Lt - H Mu 2. a random T5at.% u 253t.% nu sue (sjjexiriirits FCC sutuetute; (b) exhibits simple cubic structure; (c) has 2 atoms per uni cell;has 1 atom per lattice point. 3. Titanium exhibits HCP structure and thus has a) 1 sturu per unit cell; {59 a closed _ packed structure; (e) 1 atom per lattice point; 2 atoms per lattice point. 4. Bonding in NaCl @ requires transfer of electrons; {b} is directional; (c) is covalent; {d} involves sharing of electrons. 5. Metallic bonding (a) is directional; involves delocalized electrons; (c) is a Van der Waals bond; (d) is a hydrogen bond. 6. Dislocations are: {a} simple cubic structures; {b} point defects;@ line defects;@ described by the Burgers vector. ' 7. forms a substitutionai solid solution with complete solubilitj.F with {a} Ag; {b} A1; Pt; [d] Cr. 8. Gold has FCC crystal structure and its second x-ray diffraction peak is (a) (11(1); (b) (111);{e}(211);[2oo). ' 9. gentify the indices of the directions shown below: a : if; to Exit .2) (3-3 E :: Ill)? I'JEG i T3 to. Identify the indices of the planes shown below: jai- z i‘ d 2 ‘ y; Vs "it? - '- //J 5- ri " -._._—.—l_r.'\l..l. - T I 1 in “is i 'a. 33.. "'3 a a ' ...
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This note was uploaded on 01/22/2012 for the course ME 2733 taught by Professor Meng during the Fall '10 term at LSU.

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ME 2733 NOTES 3 - 22-141 EU SHEETS 224-12 ml BHEETS 22-1 4-1 200 5{EEITS 122"@fixair if M 00000 a i I “fl'wvfi i c o o o WWWA/w 43 W 33W

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