A Study of Progressive Milling Technology on Surface Topography and Fatigue Properties of the High Strength Aluminum Alloy 7475-T7351

Author(s):  
Miroslav Piska ◽  
Petra Ohnistova ◽  
Jana Hornikova ◽  
Charles Hervoches
2012 ◽  
Vol 184-185 ◽  
pp. 1030-1033 ◽  
Author(s):  
Shang Lei Yang ◽  
Qin Lin Lin ◽  
Chao Xu ◽  
Jia Hui Pan

The tensile properties and fatigue properties were tested, and the fatigue fracture and damage behaviore of Al-5Zn-2Mg high strength aluminum alloy was investigated by means of optical microscope (OM) and scanning electron microscope (SEM). The results show that the grain of the Al-5Zn-2Mg high strength aluminum alloy is elongated after rolling deformation. The tensile strength of the Al-5Zn-2Mg aluminum alloy is 470MPa. The fatigue life is 6.4×104 cycle in R=0.1, f=99Hz, and σmax=210MPa. The average rate is 0.08μm per cycle from micro crack formed to 8mm of fatigue crack length. The fatigue crack forms in the surface. There are the fatigue striations in the fatigue crack propagation area. The crack velocity is about 2μm per cycle in propagation area. The damaged microstructure with the fatigue loading is loose, that indicates the micro cracks progressively emerge.


2019 ◽  
Vol 6 (10) ◽  
pp. 1065f8
Author(s):  
X Meng ◽  
S L Yang ◽  
J X Gu ◽  
Q Xiong ◽  
C F Duan ◽  
...  

2014 ◽  
Vol 561 ◽  
pp. 28-32 ◽  
Author(s):  
P.H. Tsai ◽  
J.B. Li ◽  
Y.Z. Chang ◽  
H.C. Lin ◽  
J.S.C. Jang ◽  
...  

Alloy Digest ◽  
1962 ◽  
Vol 11 (11) ◽  

Abstract IMPALCO 770 is a heat treatable, high strength aluminum alloy available in bar form for machining applications. It is recommended for highly stressed structural parts. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fracture toughness and fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Al-120. Producer or source: Imperial Aluminium Company Ltd.


Alloy Digest ◽  
1954 ◽  
Vol 3 (5) ◽  

Abstract Reynolds R301 is a composite material, constituted of a core of high strength aluminum alloy, clad with a corrosion-resistant aluminum alloy. This datasheet provides information on composition, physical properties, elasticity, tensile properties, and compressive, shear, and bearing strength as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Al-16. Producer or source: Reynolds Metals Company.


2007 ◽  
Vol 55 (6) ◽  
pp. 1975-1984 ◽  
Author(s):  
Y. Xue ◽  
H. El Kadiri ◽  
M.F. Horstemeyer ◽  
J.B. Jordon ◽  
H. Weiland

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