S5alloys - Low alloy steels  Poor impact resistance...

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Unformatted text preview:  Low alloy steels  Poor impact resistance at low Temp  Alloys  nonferrous  brass, bronze, Al, Ni, ti   Ferrous  cast iron ( C>2.1 ) & steels ( C<1.4 )   low carbon( C<.25 )  no heat treatments (cold), ductility ( 25% ), tensile strength ( 450 mpa )  medium ( .25-.5 )  Hot and cold work, ductility ( 20% ), TS ( 650 Mpa )  high ( .6-1.4 )  Hot and cold work, ductility( 10% ), TS( 1Gpa )  Fe2O+3CO  2Fe+3CO2: Iron-C system  Non Ferrous: aluminum and aluminum alloys  Non magnetic, high strength to weight ration, resistance to corrosion, electrical/thermal conductivity  Use of containers, transportation, electrical applications, airplanes, busses  Brass (Cu and zinc), Bronze (copper and tin) for conductors  Nickel and Nickel alloys for strength, toughness, food handling chemical processing equipment  magnetic  Steel Classification: AISI, SAE, ASTM  1020: low carbon, 1060 is medium and 1080 is high carbon  Low alloy steels is <8% and high is >8%  Manganese & Nickel: promotes austenitic structure, hardness, dissolves in iron  Silicon: increases hardens, toughness...
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This note was uploaded on 09/25/2010 for the course MATE 210 taught by Professor Gary during the Spring '10 term at Aarhus Universitet.

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S5alloys - Low alloy steels  Poor impact resistance...

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