Compression and Hardness Tests - Compression and Hardness...

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  Compression and Hardness TestsKevin HatcherLindsey FasulesOctober 14, 2003
PurposePerform both compression and hardness tests on specified materialsExamine relationships between the tensile, compressive, and hardness properties of materialsCompare the magnitudes of these properties for different materials
Materials and EquipmentMaterialsCylindrical specimens1045 Steel (compression test)4340 Steel (hardness test)PMMA7075 AluminumCast Iron EquipmentInstron Model 4400 loading frameBrinell Hardness Testing Machine – Wilson Model JRockwell Testing – Wilson Model 523Vickers Hardness Testing – Leitz Mini-load
Experimental Procedure of Compression TestsAverage diameter of each specimenInsert specimen into testing machine and attach extensometerCheck safety shield is in working orderLoad specimen until failure or maximum compressive strength of machineMake observations
Procedures for the Hardness Test

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