Influence of Heat Treatment on Microstructure and Wear of Aluminium 359.0 Alloys

Saead Mohammed, Wahead, Ibrahim Huwaidah, Ahmed
unpublished
The aim of this work is to study wearing of alloy 359.0 which are (Al-9%Si) before and after heat treatment. First heat treatment is precipitation hardening ,Second Laser surface treatment ,The microstructure after precipitation process and laser application effected on the hardness and wear rate. ‫واﻟﺑ‬ ‫اﻟﻣﺟﮭرﯾﺔ‬ ‫اﻟﺑﻧﯾﺔ‬ ‫ﻋﻠﻰ‬ ‫اﻟﺣرارﯾﺔ‬ ‫اﻟﻣﻌﺎﻣﻼت‬ ‫ﺗﺄﺛﯾر‬ ‫اﻷﻟﻣﻧﯾوم‬ ‫ﻟﺳﺑﯾﻛﺔ‬ ‫ﻠﻰ‬. 359.0 ‫اﻟﺧﻼﺻﺔ‬ ‫ﺑﯾﻛﺔ‬ ‫ﻟﻠﺳ‬ ‫ﻰ‬ ‫اﻟﺑﻠ‬ ‫واص‬ ‫ﺧ‬ ‫ﺔ‬ ‫دراﺳ‬ ‫ث‬ ‫اﻟﺑﺣ‬ ‫ﻣن‬ ‫ﺗﺿ‬ 359.0 ‫ﻰ‬ ‫ﻋﻠ‬ ‫ﺔ‬ ‫اﻟﺣﺎوﯾ‬
more » ... ﻋﻠ‬ ‫ﺔ‬ ‫اﻟﺣﺎوﯾ‬ ‫وم‬ ‫اﻷﻟﻣﻧﯾ‬ ‫ﺑﺎﺋك‬ ‫ﺳ‬ ‫ن‬ ‫ﻣ‬ ‫ﻲ‬ ‫وھ‬ 9%Si ‫اﻟﺣرارﯾﺔ‬ ‫اﻟﻣﻌﺎﻣﻼت‬ ‫اﺟراء‬ ‫وﺑﻌد‬ ‫ﻗﺑل‬ ، ‫راء‬ ‫اﺟ‬ ‫ﺎ‬ ‫اوﻟﮭﻣ‬ ‫ورﯾن‬ ‫ﻣﺣ‬ ‫ث‬ ‫اﻟﺑﺣ‬ ‫ﻣن‬ ‫ﺗﺿ‬ ‫ﻼد‬ ‫اﻷﺻ‬ ‫ﺔ‬ ‫ﻋﻣﻠﯾ‬ ‫ﯾب‬ ‫ﺑﺎﻟﺗرﺳ‬ ، ‫ﺎﻧﻲ‬ ‫اﻟﺛ‬ ‫ور‬ ‫واﻟﻣﺣ‬ ‫ﻌﺔ‬ ‫ﺑﺎﺷ‬ ‫طﺣﻲ‬ ‫اﻟﺳ‬ ‫ﻼد‬ ‫اﻻﺻ‬ ‫ﺔ‬ ‫ﻋﻣﻠﯾ‬ ‫راء‬ ‫اﺟ‬ ،‫زر‬ ‫اﻟﻠﯾ‬ ‫ﺎﺋﺞ‬ ‫اﻟﻧﺗ‬ ‫رت‬ ‫اظﮭ‬ ‫ان‬ ‫ﺑﻌد‬ ‫اﻟﻧﺎﺗﺟﺔ‬ ‫اﻟﻣﺟﮭرﯾﺔ‬ ‫اﻟﺑﻧﯾﺔ‬ ‫طﺑﯾﻌﺔ‬ ‫ﺄﺛﯾرا‬ ‫ﺗ‬ ‫ؤﺛر‬ ‫ﺗ‬ ‫ﺑﺎﻟﻠﻠﯾزر‬ ‫اﻟﺳطﺟﯾﺔ‬ ‫واﻟﻣﻌﺎﻣﻠﺔ‬ ‫ﺑﺎﻟﺗرﺳﯾب‬ ‫اﻷﺻﻼد‬ ‫ﻋﻣﻠﯾﺔ‬ ‫اﻟﺑﻠﻰ‬ ‫وﻣﻌدل‬ ‫اﻟﺻﻼدة‬ ‫ﻋﻠﻰ‬ ‫ﻛﺑﯾرا‬. ‫اﻟﻜﻠﻤﺎت‬ ‫اﻟﺪاﻟﺔ‬ : ‫اﻟﺑﻠﻰ‬ ، ‫ﺑﺎﻟﺗرﺳﯾب‬ ‫اﻷﺻﻼد‬ ، ‫اﻟﻠﯾزر‬ ، ‫اﻟﺻﻼدة‬ ‫اﻟﻣﻘدﻣﺔ‬ ‫ﺳﺑﺎﺋك‬ ‫ﺗﻌد‬) Al-Si (‫ﺑﺔ‬ ‫ﻧﺳ‬ ‫ﻰ‬ ‫ﻋﻠ‬ ‫اﻟﺣﺎوﯾﺔ‬) 4-13 %(‫ﻠﯾﻛون‬ ‫ﺳ‬ ‫ﺑوﺑﺔ‬ ‫اﻟﻣﺻ‬ ‫وم‬ ‫اﻷﻟﻣﻧﯾ‬ ‫ﺑﺎﺋك‬ ‫ﺳ‬ ‫م‬ ‫اھ‬ ‫ن‬ ‫ﻣ‬ ‫ﻛو‬ ‫ﻣﻣﺗﺎزة‬ ‫ﺻب‬ ‫ﺧواص‬ ‫ذات‬ ‫ﻧﮭﺎ‬ ] 1 .[ ‫ﺔ‬ ‫ﻋﺎﻟﯾ‬ ‫ﺔ‬ ‫ﻣﻘﺎوﻣ‬ ‫وذات‬ ‫ﻗﻠﯾل‬ ‫واﻧﻛﻣﺎش‬ ‫ﻋﺎﻟﯾﺔ‬ ‫ﺑﺳﯾوﻟﺔ‬ ‫ﺗﺗﻣﯾز‬ ‫اﻧﮭﺎ‬ ‫إذ‬ ‫دة‬ ‫ﺟﯾ‬ ‫ﺎم‬ ‫ﻟﺣ‬ ‫ﺔ‬ ‫وﻗﺎﺑﻠﯾ‬ ‫ﺎوي‬ ‫ﻛﯾﻣﯾ‬ ‫ل‬ ‫ﺗﺂﻛ‬ ‫ﺔ‬ ‫ﺑﻣﻘﺎوﻣ‬ ‫ﺎ‬ ‫اﯾﺿ‬ ‫ز‬ ‫وﺗﺗﻣﯾ‬ ‫ﺎﺧن‬ ‫اﻟﺳ‬ ‫ﻰ‬ ‫ﻋﻠ‬ ‫زق‬ ‫ﻟﻠﺗﻣ‬ ] 2 .[ ‫ون‬ ‫ﯾﻛ‬ ‫ا‬ ‫ﺗ‬ ‫ﻟ‬ ‫ب‬ ‫رﻛﯾ‬ ‫ﺳ‬ ‫ن‬ ‫ﻋ‬ ‫ة‬ ‫ﺎر‬ ‫ﻋﺑ‬ ‫ﺑﺎﺋك‬ ‫اﻟﺳ‬ ‫ذه‬ ‫ﻟﮭ‬ ‫دﻗﯾق‬ ‫اﻟ‬ ‫ري‬ ‫اﻟﻣﺟﮭ‬ ‫ن‬ ‫وﯾﻣﻛ‬ ‫ن‬ ‫اﻟﺧﺷ‬ ‫ك‬ ‫اﻟﯾوﺗﻛﺗﯾ‬ ‫ن‬ ‫ﻣ‬ ‫س‬ ‫ﺎ‬ ‫اﺳ‬ ‫ﻲ‬ ‫ﻓ‬ ‫ﻲ‬ ‫اوﻟ‬ ‫ﻠﯾﻛون‬ ‫وﯾر‬ ‫اﻟﺗﺣ‬ ‫ﺔ‬ ‫ﺑﻌﻣﻠﯾ‬ ‫رة‬ ‫ﻛﺑﯾ‬ ‫ﺑﺻورة‬ ‫اﻟﺳﻠﯾﻛون‬ ‫ﺑﻧﯾﺔ‬ ‫ﺗﺣﺳﯾن‬) Modification (‫ﺎﻓﺔ‬ ‫ﺑﺎﺿ‬ ‫ﺗم‬ ‫ﺗ‬ ‫ﻲ‬ ‫واﻟﺗ‬ ‫ر‬ ‫ﻋﻧﺎﺻ‬ ‫ﻣﺛل‬ Na,Sr,Sb ‫اﻟﺳﺑ‬ ‫ﻣﻧﺻﮭر‬ ‫اﻟﻰ‬ ً ‫ﺗﻣﺎﻣﺎ‬ ‫اﻟﺻب‬ ‫وﻗﺑل‬ ‫ﯾﻛﺔ‬ [3,4,5]. ‫اﻟ‬ ‫ﺎﺋل‬ ‫اﻟوﺳ‬ ‫ن‬ ‫ﻣ‬ ‫زر‬ ‫اﻟﻠﯾ‬ ‫ﯾﻌد‬ ‫ﺔ‬ ‫ﻣﮭﻣ‬ ‫ﺗ‬ ‫ﺗم‬ ‫ﯾ‬ ‫اذ‬ ‫طﺣﻲ‬ ‫اﻟﺳ‬ ‫ﻠﯾد‬ ‫اﻟﺗﺻ‬ ‫ﺔ‬ ‫ﻋﻣﻠﯾ‬ ‫ﻲ‬ ‫ﻓ‬ ‫ﺔ‬ ‫واﻟﻔﻌﺎﻟ‬ ‫ﺔ‬ ‫ﺑدﻗ‬ ‫ﺔ‬ ‫اﻟطﺎﻗ‬ ‫ﻠﯾط‬ ‫ﺳ‬ ‫ﻓﻘط‬ ‫ﻣﻌﺎﻣﻠﺗﮭﺎ‬ ‫اﻟﻣراد‬ ‫اﻟﻣﻧطﻘﺔ‬ ‫وﻓﻲ‬ ‫اﻟﺳطﺢ‬ ‫ﻋﻠﻰ‬ ] 6 .[ ‫ﯾﺔ‬ ‫ھﻧدﺳ‬ ‫زاء‬ ‫اﺟ‬ ‫ن‬ ‫ﻣ‬ ‫ددة‬ ‫ﻣﺣ‬ ‫ﻊ‬ ‫ﻣواﻗ‬ ‫ﺔ‬ ‫ﻣﻌﺎﻣﻠ‬ ‫ﺗم‬ ‫ﺗ‬ ‫اذ‬ ‫ﺻﻠدا‬ ‫ﺳطﺣﮭﺎ‬ ‫ﯾﻛون‬ ‫ان‬ ‫ﯾﺟب‬ ‫اﻟﺗﻲ‬ ‫اﻟﻣﻛﺎﺋن‬ ‫اﺟزاء‬ ‫ﻣﺛل‬ ‫اﻟﻛﺎﻣﻠﺔ‬ ‫ﺑﮭﯾﺋﺗﮭﺎ‬ ‫ﻣﻌﺎﻣﻠﺗﮭﺎ‬ ‫اﻟﺿروري‬ ‫ﻣن‬ ‫ﻟﯾس‬ PDF created with pdfFactory Pro trial version www.pdffactory.com
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