000 02740nam a2200253 a 4500
001 vtls000075653
003 KUKTEM
005 20251114204554.0
008 131018t2012 my da f m 000 0 eng d
020 _aTHE0007406(Local)
039 9 _a201905151158
_bfawwaz
_c201311251655
_dnabilah
_y201310181520
_znabilah
040 _aUMP
090 _aTN672 .B46 2012 rs Bc.
100 0 _aBenjunior Bindamin
245 1 0 _aEffect of precipitate hardening treatment on microstructure and mechanical properties of cast aluminum silicon alloy (A356) /
_cBenjunior Bindamin
260 _aKuantan, Pahang :
_bUMP,
_c2012
300 _axvi, 57 p. :
_bill. ;
_c30 cm. +
_e1 CD-ROM
502 _aProject paper (Bachelor of Mechanical Engineering (Manufacturing Engineering)) -- Universiti Malaysia Pahang – 2012
504 _aBibliography : p. 55
520 3 _aThe main objective of this work was to study the influence of the precipitate hardening treatment of the A356 aluminum silicon sand cast alloy. The experiment process was separated into three parts which was foundry laboratory, material laboratory, and inspection. In the foundry laboratory, the cast alloys was prepared by sand casting process and was melted in a diesel furnace. In the material laboratory, the casting was then treated with precipitate hardening treatment and followed by machining. The inspection was done to observe microstructure, tensile properties and hardness properties. The effect of the solution heat treatment and artificial aging holding time on the microstructure, tensile properties, and hardness properties of the alloy was analyzed. Three specimens were heat treated with a solution treatment at a same temperature of 540°C, was quenched in room temperature water followed by artificial aging at a same temperature of 170°C. The different parameters were holding times which were solution at 2 hours and aging 2 hours, solution at 2 hours and aging 6 hours, solution 6 hours and aging 6 hours. The microstructure were investigated and tested by optical microscope, tension test and Rockwell hardness test respectively. The result found was at 2 hours solution of 540 °C homogenization and saturation of magnesium and silicon in Į(Al) phase, spheroid of eutectic Si phase occurred. After solution treatment, 2 hours artificial aging at 170 °C produced hardening precipitates. Samples treated at 6 hours solution and 6 hours artificial aging achieved even higher tensile strength and hardness. The increased of holding time for solution and artificial aging increased precipitate hardening.
650 0 _aPrecipitation hardening
650 0 _aAluminum
999 _aVIRTUA40
_c4326
_d4332
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*6501*9992