Volume 09 - Metallography and Microstructures Part 13 potx

... low-carbon steel. Specimens were rough polished on 1- m diamond and finish polished for 4 h on 0. 1- m Al 2 O 3 suspended in a 2 :1 mixture of propylene glycol and water. Fig. 57: using a 40-g ... on 1- m diamond on a synthetic suede short-nap cloth. Fig. 51: results of polishing on 1- m diamond on cotton drill. All specimens were abraded on a fixed-abrasive lap before pol...

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... 1.0000 1.000 0-0 . 631 0 2 0.79 43 0. 631 0-0 .39 81 3 0. 631 0 0 .39 8 1-0 .2512 4 0.5012 0.251 2-0 .1585 5 0 .39 81 0.158 5-0 .1000 6 0 .31 62 0.100 0-0 .0 631 7 0.2512 0.0 63 1-0 . 039 8 8 0.1995 0. 039 8-0 .0251 9 0.1581 ... mm 2 , (N A ) i 1 0.0 63 1-0 .0501 1.000 0-0 . 631 0 104 2 0.050 1-0 . 039 8 0. 631 0-0 .39 81 161 3 0. 039 8-0 . 0...

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... (1255 °F), and held 48 h. Structure is spheroidized carbide particles and lamellar pearlite in a ferrite matrix. Picral. 1000ì Fig. 203 Hot-rolled alloy steel bar (1.2C-0.5Cr-0.9Mo- 0.2V), ... 101, 102, 103, and 1 04 in the section "Atlas of Microstructures for Carbon and Alloy Steels" in this article. Carbon and Alloy Steels: Metallographic Techniques and Mic...

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... martensite-bainite. 4% nital. 50 0ì. (L.L. Bright) Fig. 44 Low-alloy cast steel (0.28C-0 .55 Mn-1.3Si-1.00Ni-1.5Cr- 0.4OMo), normalized at 9 25 °C (1700 °F), hardened by water quench from 900 °C (1 650 ... Composition Application AI-7 Macroetch 50 mL HCl and 50 mL H 2 O Dip at 7 0-8 0 °C (16 0- 1 75 °F) Nital General-purpose etch for iron and steels 2-1 0 mL HNO 3 and...

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... Precipitation-hardenable grades 63 0 (1 7-4 PH) 0.07 15.5 0-1 7.50 3. 0-5 .0 1.0 1.0 0.040 0.030 3. 0-3 .5Cu, 0.1 5-0 .45Nb + Ta 63 1 (1 7-7 PH) 0 .09 16. 0 0-1 8.00 6. 5-7 .75 1.0 1.0 0.040 0.030 0.7 5-1 .50Al 63 3 ... (AM-350) 0.0 7- 0.11 16. 0 0-1 7.00 4.0 0-5 .00 0. 5-1 .25 0.5 0.040 0.030 2. 5-3 .25Mo, 0.0 7-0 .13N 63 4 (AM355) 0.1 0-...

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... Fig. 76 Fig. 77 Fig. 78 Different etchants used to delineate the structure of solution-annealed and aged alloy X -7 5 0. Fig. 76 : etched using Marble's reagent. Fig. 77 : etched ... 1 978 , p 56 1-5 68 71 . A. Raman, The μ Phases, Z. Metallkd., Vol 57, April 1966, p 30 1-3 05 72 . H.J. Beattie and F.L. Ver Snyder, A New Complex Phase in a High-Temperature...

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... Al-6.2Cu-0.30Mn-0.15Ti ER4043 Al-5.2Si ER5356 Al-0.12Mn-5.0Mg-0.12Cr-0.13Ti 5456 Al-0.8Mn-5.1Mg-0.12Cr R-SG70A Al-7Si-0.30Mg 4047 (BAlSi-4) Al-12Si 4245 Al-10Si-4Cu-10Zn 4343 (BAlSi-2) Al-7.5Si ... (A132) Al-12.0Si-0.8Cu-1.2Mg-2.5Ni 354 (354) Al-9.0Si-1.8Cu-0.5Mg 355 (355) Al-1.3Cu-5.0Si-0.5Mg 356 (356) Al-7.0Si-0.3Mg A356 (A356) Al-7.0Si-0.3Mg-0.2Fe max A357 (A357) Al-7.0Si-0.5Mg...

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... Grades of vacuum hot-pressed beryllium Chemical composition S-65B S-200F I-220A I-400

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... structure showing typical banding. ASTM grain size 7. Etchant: ASTM 163. 250ì Fig. 4 C -1 03 niobium alloy (Nb-10Hf-1Ti-0.5Zr), 6.4-mm (0.2 5- in.) thick plate, cold worked and annealed. The microstructure ... 1. 4-1 .5 9-1 0 Nickel 270 1. 5-1 .8 1 0-1 2 Duranickel 301 1.2 5-1 .5 8-1 0 37 mL H 3 PO 4 (conc), 56 mL glycerol, 7 mL H 2 O Monel 400 0. 9-1 6-...

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... 0.2 0-0 .35 0.3 5-0 .75 0.3 5-0 .65 0.1 5-0 .25 8720 0.1 8-0 .23 0.7 0-0 .90 0.035 max 0.040 max 0.2 0-0 .35 0.4 0-0 .70 0.4 0-0 .60 0.2 0-0 .30 8822H 0.1 9-0 .25 0.7 0-1 .05 ... 4320 0.1 7-0 .22 0.4 5-0 .65 0.035 max 0.040 max 0.2 0-0 .35 1.6 5-2 -0 0 0.4 0-0 .60 0.2 0-0 .30 4620 0.1 7-0 ....

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... copper for high-density electrical applications; 90Cu-10Sn bronzes for bearings and structural parts; brasses with 10, 20, and 30% Zn; and nickel silver (Cu-18Zn-18Ni). The brasses and nickel silvers ... polishing using a 250-rpm, 200-mm (8-in.) diam lap, 1- m Al 2 O 3 on a synthetic suede, short-nap cloth, and moderate hand pressure will remove 0.4 μm/min. A smaller specimen,...

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... the 600-grit paper in grinding and on the percentage of tungsten in the specimen, rapid rough polishing can begin with 1 5- or 9- m diamond paste and can proceed in steps through 6- and 3- m pastes. ... examples are copper-tungsten and copper-graphite mixtures as well as silver- graphite, silver-cadmium oxide, and silver-nickel combinations. These materials often are exa...

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... structure of α-aluminum seen in a melt-spun Al- 12Mn alloy. Small particles of another phase decorate the cell walls. Electropolished at -3 0 °C (- 20 °F) in 950 mL methanol, 50 mL HClO 4 , and 15 mL ... and the matrix. Some of these variables are interdependent; all of them can be measured. Examples of the matrix- plus-dispersed-phase structure are rod-shaped particles embedded in...

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... α-fcc ε-orthorhombic Lamellar pearlite Fe-C 0.80 C 723 1333 γ-fcc(interstitial C) α-bcc Fe 3 C-orthorhombic Lamellar pearlite Fe-N 2.35 N 590 1094 γ-fcc (interstitial N) α-bcc γ'-fcc ... structure (b) Silver-aluminum 2 3-2 8 600 1110 bcc → hcp 4 1-4 2 30 0-4 50 57 0-8 40 bcc → fcc Silver-cadmium 50 300 570 bcc → hcp Silver-zinc 3 7-4 0 25 0-3 50 48 0-6 6...

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... shape, and orientation with all (c) Approximate percentage of <100> component: Al, Pb, Co-10Fe, Cu-8Al (< 10%); Au (15%); Ni, 4Mo-79Ni-17Fe, Cu, Cu-2Al, Cu-4Al, Co- 35Ni(2 5-3 5%); Co-40Ni ... intersections of mechanical twins, such as Neumann bands in body-centered cubic crystals; the distorted twin-band boundaries; and the regions of shear bands. Limited recrystallizatio...

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