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CONTEMPORARY ISSUES IN ECONOMY & TECHNOLOGY

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Influence of distance of deformed surface on properties of heat and mechanichal hardened aluminum alloy ASTM 2011

Precipitation-hardened aluminium alloys can be further strengthened by heat treatment as well as by cold deformation. Plastic deformation is performed during the heat treatment phase, after annealing and quenching but before artificial aging. Deformation is performed between presure plates of a hydraulic press. The aim of this experiment is to determine the influence of distance from a deformed surface of a specimen on the properties of material (hardness) after treatment. A cylindrical specimen is chosen, and is cut lengthwise after treatment. The profile of hardness is determined between two deformed surfaces. A central composite plan of the experiment is used, and the results are statistically processed by Desin-Expert software. Alternate variables in the experiment are the temperature of aging, the duration of aging, and the distance from the deformed surface. Response value of the experiment is the hardness after completion of the aging process.

Author(s):

Zoran Kurelić    
Sveučilišni odjel za stručne studije u Splitu
Croatia

Igor Gabrić    
Sveučilišni odjel za stručne studije u Splitu
Croatia

Ivan Vrljičak    
Sveučilišni odjel za stručne studije u Splitu
Croatia

 

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