Low Frequency Electromagnetic Casting of Al Alloys

In the Low Frequency Electromagnetic Casting process the mold is surrounded by a coil powered by an alternating current to endue an electromagnetic field. One of the biggest advantages of using the LFEC process in comparison to conventional casting processes is a distinct improvement in the microstructure with LFEC ingots producing a very fine equiaxed grain structure. Continue reading

Dissimilar Welding of Stainless Steel to Other Metals

The main challenges of welding dissimilar relate to the range of different properties displayed by the different materials and how these effect the finished nature of the joint itself. There is still much to learn about welding dissimilar materials but improving the related techniques in this complex technological subject can lead to great gains across many industry sectors. Continue reading

Magnesium Alloy Strip Casting

Magnesium alloys are well known for light weighting specifically in transportation and mobile electronics but have production restrictions relating to formability and therefore are primarily die casted. Magnesium alloy strip casting combines casting and hot rolling into a single step process meaning good results can be gained whilst saving on equipment, running and energy costs.

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Critical Crack Tip Opening Displacement (CTOD) Testing: Part Two

Crack tip opening displacement is widely used and quite specific in that it is the only standardized test that covers all fracture behaviors that occur between the extremes associated with the stress intensity factor K and J-integral tests. This articles covers a range of conclusions from papers focusing on CTOD testing of a range of well-known and important steels such as HSLA. Continue reading