Microstructural Control in an Aluminum Core Alloy for Brazing Sheet Applications

Flow stress and microstructural evolution of the horizontal continuous casting Al–0.96Mn–0.38Si–0.18Fe alloy during hot compression

“…Hausch et al [28] investigated recrystallization and precipitation in Al-Mn-Si alloys. It has been found that gray Al 6 (Mn,Fe) particles tend to precipitate during low-temperature homogenization, while black a-Al 12 (Mn,Fe) 3 Si particles tend to precipitate at high temperature. Increasing the temperature or 7.…”

“…extending the duration of the homogenization treatment causes some of the gray Al 6 (Mn,Fe) particles to redissolve and transform into a-Al 12 (Mn,Fe) 3 Si particles. The low-temperature condition tends to be characterized by the precipitation of the nuclei of unstable gray Al 6 (Mn,Fe) particles, because the speed of movement of the Mn atoms is too slow to aggregate.…”

“…The characteristic properties of aluminum, high strength stiffness to weight ratio, good formability, good corrosion resistance, and recycling potential make it the ideal candidate to replace heavier materials (steel or copper) in the car to respond to the weight reduction demand within the automotive industry. One of the increasing applications of Al alloys in vehicles is heat exchangers (with tube and fin components) such as radiators, evaporators, engine cooling and air conditioning systems [1][2][3]. The 3000 series alloys, based on the Al-Mn system, are processed into sheet and extruded products which are widely used for heat exchangers due to the combination of strength, formability, brazeability, and corrosion resistance.…”

An Investigation on Corrosion Behavior of a Multi-layer Modified Aluminum Brazing Sheet

“…Besides, a band of dense precipitates (BDP) [11,12]is formed in the interface between the clad and core materials, as a consequence of the diffusion of Si and Cu elements during brazing. And it is said that the existence of BDP will affect the corrosion behavior of the brazed material [13], however, there is no definitive mechanism about the effect above.…”

Computational and Experimental Studies on the Inhibitive Effects of <i>Newbouldia laevis</i> Extract and Magnetic Fields on Copper Corrosion in Aqueous Acidic Media

“…The need to mitigate or control the degradation of copper metals exposed to aggressive conditions has been a subject of study and has attracted many researchers and various inhibitors have been under investigation. These include inorganic inhibitors [2], organic inhibitors of azole derivatives [3][4][5][6][7][8][9][10], amine [11][12][13][14], amino acid [15 -16] and green organic inhibitors [17][18]. The inhibitive actions of the various organic molecules and compounds are favoured by the various organic heteroatoms of nitrogen, sulphur, phospurous, and oxygen in molecules and multiple of bonds or aromatic rings in their structures [1,19,20].…”