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7075 aluminium alloy (AA7075) is an aluminium alloy with zinc as the primary alloying element. It has excellent mechanical properties and exhibits good ductility, high strength, toughness, and good resistance to fatigue.
7055: High-Strength Plate and Extrusion Alloy Microstructure characterization of 7055-T6, 6061-T6511 and 7A52-T6 Al alloys subjected to ballistic impact against heavy tungsten alloy projectile Grain size prediction and investigation of 7055 aluminum alloy inoculated by Al–5Ti–1B master alloy,Journal of Alloys and Compounds - X-MOL
7068 alloy is a 7000 series aluminium-zinc alloy registered with the US Aluminium Association and produced to AMS 4331 (chemical composition and mechanical properties) and AMS 2772 (heat treatment). 7068 alloy ‘A’ and ‘B’ tensile data and fatigue properties have been ratified for inclusion in MIL Handbook 5 / MMPDS.
Representative curves of applied stress vs number of cycles for steel (showing an endurance limit) and aluminium (showing no such limit).. The fatigue limit or endurance limit is the stress level below which an infinite number of loading cycles can be applied to a material without causing fatigue failure. [1]
The combination of high strength and fracture toughness properties and corrosion resistance makes 7065 suitable as a replacement for 7010, 7050, 7075, 7475 and other alloys for critical intermediate thickness applications. [3] Spar, rib, and integrally machined structural parts for new, derivative, or retrofit aircraft. [3]
The Aluminum / aluminum 7049 alloy is a forging aluminum alloy. It has a high stress, ... Tensile Strength, Ultimate [2] 517 MPa 6: Fatigue strength [3] 160 to 170 MPa 7:
Within the branch of materials science known as material failure theory, the Goodman relation (also called a Goodman diagram, a Goodman-Haigh diagram, a Haigh diagram or a Haigh-Soderberg diagram) is an equation used to quantify the interaction of mean and alternating stresses on the fatigue life of a material. [1]
Like most other highly alloyed alloys, 7022 is a high strength alloy, with yield strength of 370 MPa. Designed to be resistant to stress corrosion cracking, it has decent corrosion and oxidation resistance comparable to 7075 aluminium alloy [1] but worse than 7039 aluminium alloy. Good machinability, thermal conductivity and dimensional ...