品牌:鎂鋁 | 規(guī)格:7075-T651 | 材質(zhì):鋁合金 |
7075-T651由美鋁公司在1943年推出,在航空航天工業(yè),7075-T651至今一直是7xxx系列合金的主力力量。這是第一次成功的在AL-Zn-Mg-Cu系高強(qiáng)度合金中使用加入了鉻合金,使之形成了良好的抗應(yīng)力腐蝕開(kāi)裂的板材產(chǎn)品,其效益影響深刻。雖然其他7xxx合金至今也已開(kāi)發(fā)與改進(jìn)了特定的屬性,7075仍然是一個(gè)很好的平衡航空航天應(yīng)用所需的性能基線。
7075合金薄板和中厚板產(chǎn)品應(yīng)用遍及航空航天結(jié)構(gòu)當(dāng)中,其中,適中的韌性和腐蝕性的高強(qiáng)度結(jié)合是材料所具有的。
Alloy7075sheet and plate products have application throughout aircraft and aerospace structureswhere a combination of high strength with moderate toughness and corrosion resistance are required.
化學(xué)成分范圍:
Si | 0.40 | Zn . . . | 5.1-6.1 |
Fe . . . | 0.50 | Ti . . . | 0.20 |
Cu . . . | 1.2-2.0 | Others, each . . . | 0.05 |
Mn . . . | 0.30 | Others, total . . . | 0.15 |
Mg . . . | 2.1-2.9 | Balance, Aluminum | |
Cr . . . | 0.18-0.28 |
Note: Value maximum if range not shown
機(jī)械性能:
Temper | Thickness in.(mm) | TENSILESTRENGTH Ksi(Mpa) | YIEID STRENGTH Ksi(Mpa) | ELONGATION % |
0 | 0.015-2.00 | 40 (max) | 21 (max) | 9-10 |
Sheet & plate T6 | (0.38-50.80) 0.008-0.249 | (276) 74-78 | (145) 63-69 |
5-8 |
Sheet T651 | (0.203-6.32) 0.250-4.000 | (510-538) 78-67 | (434-476) 67-54 |
9-3 |
Plate T76 | (6.35-101.60) 0.125-0.249 | (538-462) 73 | (462-372) 62 |
8 |
Sheet T7651 | (3.18-6.32) 0.250-1.000 | (503) 72-71 | (427) 61-60 |
8-6 |
Plate T73 | (6.35-25.40) 0.040-0.249 | (496-490) 67 | (421-414) 56 |
8 |
Sheet T7351 | (1.02-6.32) 0.250-4.000 | (462) 69-61 | (386) 57-48 |
7-6 |
Plate | (6.35-101.60) | (476-421) | (393-331) |
7075所有的值都是低的橫向機(jī)械性能除非另有說(shuō)明(ALLOY7075All values are minimum long transverse mechanical properties except where noted)
合金7075-T6典型的斷裂韌性值(TYPICAL FRACTURE TOUGHNESS VALUES Alloy7075Plate)
7075 | T651 T7351 | 26 (28.6) 30 (32.0) | 22(24.2) 26 (28.6) |
合金7075規(guī)范:
PLATE |
Temper T651 T7651 Specification QQ-A-250/13 QQ-A-250/24 MIL-HDBK-5 Approved |
BARE SHEET ALCLAD SHEET
|
Specification QQ-A-250/12,24 QQ-A-250/13,25,26 MIL-HDBK-5 Approved Approved |