Atomistics of Fracture.pdf

Atomistics of Fracture PDF

It is now more than 100 years since certain detrimental effects on the ductility of iron were first associated with the presence of hydrogen. Not only is hydrogen embrittlement still a major industri al problem, but it is safe to say that in a mechanistic sense we still do not know what hydrogen (but not nitrogen or oxygen, for example) does on an atomic scale to induce this degradation. The same applies to other examples of environmentally-induced fracture: what is it about the ubiquitous chloride ion that induces premature catastrophic fracture (stress corrosion cracking) of ordinarily ductile austenitic stainless steels? Why, moreover, are halide ions troublesome but the nitrate or sulfate anions not deleterious to such stainless steels? Likewise, why are some solid metals embrit tled catastrophically by same liquid metals (liquid metal embrit tlement) - copper and aluminum, for example, are embrittled by liquid mercury. In short, despite all that we may know about the materials science and mechanics of fracture on a macroscopic scale, we know little about the atomistics of fracture in the absence of environmental interactions and even less when embrittlement phe nomena such as those described above are involved. On the other hand, it is interesting to note that physical chemists and surface chemists also have interests in the same kinds of interactions that occur on an atomic scale when metals such as nickel or platinum are used, for example, as catalysts for chemical reactions.

We use large-scale, fully three-dimensional atomistic simulations to study individual ... Atomistic studies of fracture are also part of the research training group ... Atomistic simulation shows that the reduced plane model in this paper can not only reveal the physical nature of crack initiation clearly but also give the critical time ...

3.11 MB DATEIGRÖSSE
1461335027 ISBN
Englisch SPRACHE
Atomistics of Fracture.pdf

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Sofia Voigt

Buy Atomistics of Fracture (Nato Conference Series) 1983 by R.M. Latanison, J.R. Pickens (ISBN: 9780306410291) from Amazon's Book Store. Everyday low prices and free delivery on eligible orders.

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Noel Schulze

Dynamic fracture-. Silicon. Atomistic model. Tensile testing on atomic scale ... Christian Thaulow – Atomistic- and Multiscale Material Modeling and Testing. 14 Jun 2016 ... Using fully atomistic models, we uncover molecular-scale plastic deformation and fracture processes initiated at the organic-inorganic interface.

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Jason Lehmann

Amazon.com: Atomistics of Fracture (Nato … In short, despite all that we may know about the materials science and mechanics of fracture on a macroscopic scale, we know little about the atomistics of fracture in the absence of environmental interactions and even less when embrittlement phe­ nomena such as those described above are involved. On the other hand, it is interesting to note

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Jessica Kohmann

16.11.2018 · Atomistic modeling of fracture is intended to illuminate the complex response of atoms in the very high stressed region just ahead of a sharp crack. Accurate modeling of the atomic scale fracture is crucial for describing the intrinsic nature of a material (intrinsic ductility/brittleness), chemical effects in the crack-tip vicinity, the crack