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Strontium in Al–Si–Mg alloy: a review
The present article reviews the development of cast aluminium alloy with highlights on
improvement in the morphological, mechanical, tribological, and ageing properties of Sr …
improvement in the morphological, mechanical, tribological, and ageing properties of Sr …
An overview of the effects of bifilms on the structure and properties of cast alloys
J Campbell - Metallurgical and Materials Transactions B, 2006 - Springer
A short overview of the role of bifilms (double oxide films) in cast Al alloys includes control of
(1) grain size, because of the suppression of convection;(2) dendrite-arm spacing (DAS) as …
(1) grain size, because of the suppression of convection;(2) dendrite-arm spacing (DAS) as …
Entrainment defects
J Campbell - Materials science and technology, 2006 - Taylor & Francis
Most metals start their lives in the liquid state, and are subjected to various transfers
involving pouring or other types of surface turbulence. These actions entrain (fold in) the …
involving pouring or other types of surface turbulence. These actions entrain (fold in) the …
Porosity, hydrogen and bifilm content in Al alloy castings
In Al alloy castings, it is often not microstructure, but entrained defects in the form of bifilms
that dominate mechanical properties. To assess their effect, this study targets a new …
that dominate mechanical properties. To assess their effect, this study targets a new …
Degassing, hydrogen and porosity phenomena in A356
The decrease in the solubility of hydrogen in liquid aluminium with temperature has been
believed to be a major source of porosity. Therefore, degassing treatment is carried out in …
believed to be a major source of porosity. Therefore, degassing treatment is carried out in …
[HTML][HTML] Modeling and validation of hydrogen porosity formation in aluminum laser welding
Laser welding is used to weld aluminum alloy 1100 for battery cell manufacturing in the
automotive industry. However, these welds can have porosity that can decrease their …
automotive industry. However, these welds can have porosity that can decrease their …
[HTML][HTML] Improved degassing efficiency and mechanical properties of A356 aluminium alloy castings by high shear melt conditioning (HSMC) technology
The degassing of aluminium alloy melts is a crucial step in the production of high-quality
casting products, as the presence of dissolved hydrogen and oxide bi-films is detrimental to …
casting products, as the presence of dissolved hydrogen and oxide bi-films is detrimental to …
Use of bifilm index as an assessment of liquid metal quality
There is growing evidence that, in general, aluminium castings under-perform by a large
margin. This is not only because of shrinkage or gas porosity, but particularly because of the …
margin. This is not only because of shrinkage or gas porosity, but particularly because of the …
Characterization of the double oxide film content of liquid aluminum alloys by computed tomography
The entrainment of the surface oxide layer of aluminum alloy melts is currently a mostly
inevitable process during the melt handling and processing techniques of the foundry …
inevitable process during the melt handling and processing techniques of the foundry …
Critical assessment of reduced pressure test. Part 2: Quantification
The presence of bifilms in aluminium alloys has not so far been widely accepted, because
there is no single metal quality test that is capable of identifying and classifying them …
there is no single metal quality test that is capable of identifying and classifying them …