Week9Ch11

Week9Ch11 - Chapter 11: Metal Alloys Applications and...

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Chapter 11: Metal Alloys pplications and Processing Applications and Processing 1 1 Introduction SUES TO ADDRESS 11.1 Introduction ISSUES TO ADDRESS. .. How are metal alloys classified and how are they used? • What are some of the common fabrication techniques? What are some of the common fabrication techniques? How do properties vary throughout a piece of material that has been quenched, for example? How can properties be modified by post heat treatment? Chapter 11 - 1
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Taxonomy of Metals Adapted from Metal Alloys errous onferrous Fig. 11.1, Callister 7e . Steels Ferrous Nonferrous Cast Irons Cu Al Mg Ti <1.4wt%C 3-4.5wt%C Steels <1.4wt%C Cast Irons 3-4.5wt%C 1600 δ T (°C) microstructure: ferrite, graphite cementite Adapted from Fig. 9.24, Callister 7e . (Fig. 9.24 adapted from Binary Alloy Phase Diagrams , 2nd ed., Vol. 1, T.B. Massalski (Ed.-in-Chief), 1400 1200 000 L γ austenite γ + L L +Fe 3 C Eutectic: .30 1148°C ASM International, Materials Park, OH, 1990.) Fe 3 C cementite 1000 800 600 γ +Fe 3 C α ferrite α +Fe C Eutectoid: 0.76 4.30 727°C Chapter 11 - 2 400 0 123456 6 . 7 3 (Fe) C o , wt% C
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11.1 Ferrous alloys Iron containing – Steels - cast irons Nomenclature AISI & SAE 10xx Plain Carbon Steels 1xx lain Carbon Steels (resulfurized for machinability) 11xx Plain Carbon Steels (resulfurized for machinability) 12xx Plain Carbon Steels (Resulfurized and rephosphorized) 13xx Mn (1.6-1.9%) 0xx o (0 20 0 30%) 40xx Mo (0.20 ~ 0.30%) 43xx Ni (1.65 - 2.00%), Cr (0.4 - 0.90%), Mo (0.2 - 0.3%) 44xx Mo (0.5%) where xx is wt% C x 100 example: 1060 steel – plain carbon steel with 0.60 wt% C Chapter 11 - 3 Stainless Steel -- >11% Cr
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Steel Alloy Designation System (American Iron and Steel Institute-Society of Automotive Engineering) AISI-SAE Designation ype and Description http://www.engineershandbook.com/Tables/carbonsteelalloys.htm Number Type and Description Carbon steels 10xx Plain Carbon (Mn. 1.00% max.) 11xx Resulfurized 12xx Resulfurized and rephosphorized 15xx Plain Carbon (max. Mn. range 1.00-1.65%) Manganese steels 13xx Mn 1.75 ickel steels Nickel steels 23xx Ni 3.50 25xx Ni 5.00 Nickel-chromium steels 31xx Ni 1.25; Cr 0.65, 0.80 32xx Ni 1.75; Cr 1.07 33xx Ni 3.50; Cr 1.50, 1.57 34xx Ni 3.00; Cr 0.77 Molybdenum steels 40xx Mo 0.20, 0.25 44xx Mo 0.40, 0.52 Chromium-molybdenum steels 41xx Cr 0.50, 0.80, 0.95; Mo 0.12, 0.20, 0.25, 0.30 ickel romium olybdenum steels Chapter 11 - 4 Nickel-chromium-molybdenum steels 43xx Ni 1.82; Cr 0.50, 0.80; Mo 0.25 43BVxx Ni 1.82; Cr 0.50; Mo 0.12, 0.25; V 0.03 min. 47xx Ni 1.05; Cr 0.45; Mo 0.20, 0.35
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81xx Ni 0.30; Cr 0.40; Mo 0.12 86xx Ni 0.55; Cr 0.50; Mo 0.20 87xx Ni 0.55; Cr 0.50; Mo 0.25 88xx Ni 0.55; Cr 0.50; Mo 0.35 93xx Ni 3.25; Cr 1.20; Mo 0.12 94xx Ni 0.45; Cr 0.40; Mo 0.12 97xx Ni 1.00; Cr 0.20; Mo 0.20 98xx Ni 1.00; Cr 0.80; Mo 0.25 Nickel-molybdenum steels 46xx Ni 0.85, 1.82; Mo 0.20, 0.25 48xx Ni 3.50; Mo 0.25 Chromium steels 0xx r027 040 050 065 50xx Cr 0.27, 0.40, 0.50, 0.65 51xx Cr 0.80, 0.87, 0.92, 0.95, 1.00, 1.05 50xxx Cr 0.50; C 1.00 min. 51xxx Cr 1.02; C 1.00 min. 52xxx Cr 1.45; C 1.00 min. Chromium-vanadium steels 61xx Cr 0.60, 0.80, 0.95; V 0.10, 0.15 Tungsten-chromium steels 72xx W 1.75; Cr 0.75 Silicon-manganese steels 92xx Si 1.40, 2.00; Mn 0.65, 0.82, 0.85; Cr 0.00, 0.65 High-strength low-alloy steels 9xx Various SAE grades oron steels Chapter 11 - 5 Boron steels xxBxx B denotes boron steels Leaded steels xxLxx L denotes leaded steels
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Steels Stee s Low Alloy High Alloy low carbon Med carbon high carbon <0.25wt%C 0.25-0.6wt%C 0.6-1.4wt%C plain HSLA plain heat eatable plain tool austenitic tainless Name Example 1010 4310 1040 4340
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This note was uploaded on 09/21/2010 for the course EGN 3365 taught by Professor Jiuhuachen during the Spring '09 term at FIU.

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Week9Ch11 - Chapter 11: Metal Alloys Applications and...

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