Qz6-F02 - ENSC 3313, Fall Zflfli i T' Quiz 6 Name Answer...

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Unformatted text preview: ENSC 3313, Fall Zflfli i T' Quiz 6 Name Answer MI 4 Questions onlv, 1 point each F1 in the Ail—{1r system, assign *‘reasnnahlysimplfl chemical Fownnlae tn the [L E, g, anti 1‘] phases. ‘6 IIII‘BHII: Pimenlnqu chromium . I . 10 21: M in W N 70 50 '30 l3: I2.5 ate Cr; -~ filial—.1n IHDU amt El 5:5 {1-50 [31'] "' Inkliin swear :I ~ 40 33"!) CT] "" AlaCl‘: “our T| ~ 156 afo Ct. r» AlCrg ' new State the compositions of a) the first rim liquid formed anti h} the last remaining w" solid when an Al 6i} wfo Ct alloyr is "W heated slowly to lfiflo‘t. - “'“' a] Melting begins at av |352°fi; eoo ‘ -' drawing a twpmture ‘” Hi lfillilltilfllli‘I horizontal to the liquidusi I get 500 I i” I IMF E: a: Ilil . _ b} Melting is complete at w :5: . i l 1525 “C. Drawing a m, temperature horizontal to the see .. swim I get ~ it We Cr- m IEIIIIiIIiIiIIIIIIIi 4oo '- ' “'IIIIIIIIIIIi-illlfi ' 300 i Remnant-w”? N to eo so no so eo To so so or LAN". Weight Palomino: Ghmmiun'r In the Al-Cl‘ system, iuzleni'it'},r the regions- ihat I have labeled A. B. C, and D. A is between L and tr, henee L + “r. H is between B and Eg,he1'iee E: + E}. C is between $1 anti ii, henee (.3; -+- i]. D is between C; and 7], hence Q; + :1. In a 1.43 wfo C stccl, state the composition of the T phase (austenite) present at equilibrium at a] EMT, h} NET, 1:] lflflflfll, and d) MIDWC. Ammo puma worm _ a} In or I carhide zone; no T present. a h} in T - carbide zone: T - UT? wf'o C c} In single phase T zone: T = H] We C d} In T + liquid zone: T ~ {LR wfo C does this ferrite-peai-lite micrcstmcture correspond to [x Sflfl)? What C content. approximately, I estimate W3 pearlite. I have no pcarlite at {1% C and IUU‘JKF} pearlite at ~ U.8% C. Hence TEE pcarlite at ~ (11% C. State [approximately] 2 alloy; compositions containing lfl'lv‘u of the T (austenitel phase at equilibrium at some. The zones are or + T and T + carbide. The compositions we need are son. of the way,r from the T boundary {on each side}, hence as £2334 Meg and ~ 6.1 wfo C. ...
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This note was uploaded on 01/10/2012 for the course ENSC 3313 taught by Professor Staff during the Fall '11 term at Oklahoma State.

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Qz6-F02 - ENSC 3313, Fall Zflfli i T' Quiz 6 Name Answer...

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