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The Basics of Nonferrous Metallurgy

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Manganese Bronze Alloys

Bronze alloys exhibit very good toughness, strength, corrosion resistance, electrical conductivity, and thermal conductivity.
As one of the oldest alloyed materials a range of applications exist to take advantage of the various positive characteristics such as high load bearings, bushings and hydraulic cylinder parts.

Master Alloys for Aluminum Alloys: Part One

One of the most important goals of aluminum alloy production by casting is the refinement of grain size, because coarse grain size immediately reflects in lower property levels. In the case of fixed melting and casting conditions, this goal is usually achieved by different modification methods. These methods are conventionally based on the introduction of a small amount of special master alloys into a slightly overheated melt.

Master Alloys for Aluminum Alloys: Part Two

The article summarizes common additions are used for aluminum alloys, the engineering practice has acquired the following main addition methods for them, and recommendations, which should be kept in mind for selection of the master alloys and performing the aluminum alloy modification and grain refinement.

Mechanical Properties of Twin Roll Casted Magnesium Alloys

Overall magnesium alloys are an attractive prospect for material selection where light-weighting requirements, for example in vehicles, are demanding and stringent to make components lighter without comprising safety.
Twin roll casting provides a processing option to widen the potential application of magnesium alloys in sheet form whilst at the same time retaining the mechanical properties required for such diverse use.

Melting and Alloying Aluminum Alloys

Production of high quality semi-finished products and castings based on aluminum depends on quality of raw materials, especially master-alloys and alloying elements. Master-alloy could be considered as an alloying element and the process and the technology of their production should be carefully controlled. Even though master-alloys are for very long time used for the production of aluminum alloys there isn't enough data on them. Therefore a systematic approach is needed to this issue, which includes analysis of theoretical background and practical ways of alloys and master-alloys production.

Metallurgical Factors Affecting High Strength Aluminum Alloy Production

With the advent of linear elastic fracture mechanics, the detailed effects of processing and microstructure on toughness can be evaluated. The effect of microstructure on plane stress and plane strain fracture toughness is considered in detail together with strength, fatigue behavior and corrosion resistance.