AMS 4045 Aluminum Alloy 7075 T6 T651 Pepa Pepa
ʻO nā papa alumini Alloy 7075 ka lālā koʻikoʻi o ka moʻo 7xxx a ke hoʻomau nei ʻo ia i ke kumu ma waena o nā ʻāpana ikaika kiʻekiʻe loa i loaʻa. ʻO Zinc ka mea hoʻohui mua e hāʻawi iā ia i ka ikaika e like me ke kila. Loaʻa i ka Temper T651 ka ikaika luhi maikaʻi, ka machinability kūpono, ka hoʻoheheʻe kūʻē a me nā helu kūʻē i ka corrosion. ʻO Alloy 7075 i loko o ka huhū T7x51 he ʻoi aku ka maikaʻi o ka pale ʻana i ka corrosion a hoʻololi i ka alloy 2xxx i nā noi koʻikoʻi.
ʻO 7075 alumini alumini kekahi o nā alumini alumini ikaika loa i loaʻa, i mea waiwai i nā kūlana koʻikoʻi. ʻO kona ikaika kiʻekiʻe (> 500 MPa) a me kona haʻahaʻa haʻahaʻa e kūpono i nā mea no nā noi e like me nā ʻāpana mokulele a i ʻole nā ʻāpana i pili i ka lole kaumaha. ʻOiai ʻoi aku ka liʻiliʻi o ka corrosion ma mua o nā alloys ʻē aʻe (e like me 5083 alumini alumini, ʻoi loa ke kūpaʻa i ka corrosion), ʻoi aku kona ikaika ma mua o ka hōʻoia ʻana i nā haʻahaʻa.
ʻO ke kūpaʻa koʻikoʻi o ka corrosion koʻikoʻi o ka T73 a me ka T7351 tempers e hana i ka alloy 7075 i hoʻololi kūpono no 2024, 2014 a me 2017 i ka nui o nā noi koʻikoʻi. ʻO ka T6 a me ka T651 tempers he machinability kūpono. Hoʻohana nui ʻia ʻo Alloy 7075 e nā mokulele a me nā ʻoihana ordnance ma muli o kona ikaika kiʻekiʻe.
| Ka Hui Kimia WT(%) | |||||||||
| Silika | hao | keleawe | Magnesium | Manganese | Chromium | Zinc | Titanium | ʻO nā mea ʻē aʻe | Aluminum |
| 0.4 | 0.5 | 1.2~2 | 2.1~2.9 | 0.3 | 0.18~0.28 | 5.1~5.6 | 0.2 | 0.05 | Kaulike |
| Mea Mechanical ma'amau | ||||
| Ka huhū | mānoanoa (mm) | Ikaika U'i (Mpa) | Ka ikaika hua (Mpa) | ʻO ka elongation (%) |
| T6 | 1~3.2 | 540 | 470 | 8 |
| T6 | 3.2~6.3 | 540 | 475 | 8 |
| T651 | 6.3~12.5 | 540 | 460 | 9 |
| T651 | 25~50 | 530 | 460 | --- |
| T651 | 60~80 | 495 | 420 | --- |
| T651 | 90~100 | 460 | 370 | --- |
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