weldsA multiwall carbon nanotube (MWCNT)-reinforced aluminum matrix composite was fabricated by ultrasonic metal welding. The composite microstructure was investigated using a scanning electron microscope, transmission electron microscopy, energy-dispersive X-ray spectrum, and X-ray diffraction. The ...
Improving Strength of Stainless Steel/Aluminum Alloy Friction Welds by Modifying Faying Surface Design 来自 国家科技图书文献中心 喜欢 0 阅读量: 97 作者:M Ashfaq,N Sajja,HK Rafi,KP Rao 摘要: Conventionally in friction welding, the rubbing or faying ends of the base material rods are square ...
In the realm of engineering, high-strength aluminum alloys hold a prominent position, offering a unique blend of lightweight properties and impressive mechanical strength. However, these alloys come with a caveat - the risk of weld cracking. Understanding the nuances of weld cracking and implementing...
Cracking from a fine equiaxed zone (FQZ), often just tens of microns across, plagues the welding of 7000 series aluminum alloys. Using a multiscale correlative methodology, from the millimeter scale to the nanoscale, we shed light on the strengtheni
The effects of the various small, intermediate, and large precipitates on the fracture toughness and fatigue properties of aluminum alloys based on the 2024 and 7075 compositions were studied. Different concentrations and sizes of the precipitates were obtained by systematic variations in the chemical ...
In this study, friction welding with aluminum was carried out. The welding process is carried out with variations in the frictional rotation speed of 2300 rpm and 3100 rpm, at a pressure of 100 psi and a time duration of 30 seconds. Tensile tests are carried out on the welding results. ...
, fine-grained microstructures are acquired, thereby considerably increasing the tensile strength over that of conventional fusion welding joints, and even comparable to that of friction stir welding joints. This work has important engineering application value in welding of high-strength aluminum alloys....
1)high strength aluminum alloy高强铝合金 1.Effect of heat input on microstructure and mechanical properties of thehigh strength aluminum alloywelds;焊接热输入对高强铝合金接头组织和性能的影响 2.Effects of shielding gas on microstructure and number of gas pore inhigh strength aluminum alloys weld;保护...
The present work represents the effect of strain energy density (SED) on the low cycle fatigue (LCF) behavior of aluminum alloy 2024. For this, strain-controlled fully reversed LCF tests were conducted on aluminum alloy 2024 at the strain amplitude range
The solidification cracking susceptibility of the 7000 series Al-Zn-Mg high strength aluminum alloy has been studied. The cracking behaviour of the specimens were evaluated by a Tig-a-Ma-Jig Varestraint test process under various augmented strain conditions. It has been experimentally observed that ...