Nanostructured metals and alloys: Processing, by S H Whang

By S H Whang

Nanostructured metals and alloys have greater tensile power, fatigue power and ductility and are compatible to be used in functions the place power or strength-to-weight ratios are very important. half one in all this crucial ebook experiences processing suggestions for bulk nanostructured metals and alloys. components and 3 talk about microstructure and mechanical homes, when half 4 outlines functions of this new category of fabric.

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Nanostructured metals and alloys: Processing, microstructure, mechanical properties and applications

Nanostructured metals and alloys have more suitable tensile power, fatigue power and ductility and are appropriate to be used in purposes the place power or strength-to-weight ratios are very important. half one in all this significant publication reports processing suggestions for bulk nanostructured metals and alloys. components and 3 speak about microstructure and mechanical houses, when half 4 outlines functions of this new category of fabric.

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G. Fig. 71,78 4. Nano-sized particles – second-phase precipitations. 15 UFG structure of the alloy Al 6061 after ECAP with parallel channels (4 passes). 19,79 Thus, the UFG metals and alloys processed by SPD techniques and, in particular, ECAP are characterized by a number of nanostructural elements that considerably influence their properties, as will be shown below. That is why these materials are referred to as the class of ‘bulk nanostructured materials’, and this definition is presently accepted by the international community (www.

58 It is logical to assume that higher diffusion flux as a component of CGBS in nanostructured metallic materials would assist GB sliding while lack of intragranular dislocation activity in nanostructured © Woodhead Publishing Limited, 2011 Introduction xxxi metallic materials (NMM) may negatively influence the grain boundary sliding. But, the fundamental classical mechanisms for SP and creep appear to remain in NMM. Understanding of SP and creep mechanisms must start with an understanding of the GB sliding mechanisms in NMM.

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