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Showing 1 to 4 of 4 for “"Grain refiner"”.
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Development of Niobium Boron grain retainer for aluminium silicon alloys
Aluminium castings with a large grain structure have poor mechanical properties which are primarily due to casting defects as opposed to fine grain structure. The grain refinement practice using chemical addition is well established for wrought alloys, however in the case of casting alloys, the …
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Understanding the effect of aluminium on the microstructure on low level nitrogen steel
Aluminium has been used as a de-oxidant and grain refiner element for more than 100 years, however, the use of aluminium as a deliberate alloying addition in steels has attracted increased attention recently as a possible replacement for Si in Transformation Induced Plasticity (TRIP) steels. …
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Enhanced heterogeneous nucleation on oxides in Al alloys by intensive melt shearing
… structural and functional applications. A grain refined as-cast microstructure is generally highly desirable for either subsequent processing ability or mechanical properties of the finished components. In this thesis, the grain refined microstructures in Al alloys have been achieved by …
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Solidification behaviour of magnesium alloys
… In order to improve the mechanical properties, grain refinement of the microstructures of magnesium alloys has been studied for many years. However, an effective and efficient grain refiner or refinement technique hasn’t been achieved yet, especially for those with aluminium contained. In this …