Grain Boundary Chemistry and Intergranular Fracture PDF Download
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Author: G. Was
Publisher: Trans Tech Publications Ltd
ISBN: 3035704414
Category : Technology & Engineering
Languages : en
Pages : 374
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Book Description
Materials Science Forum Vol. 46
Author: G. Was
Publisher: Trans Tech Publications Ltd
ISBN: 3035704414
Category : Technology & Engineering
Languages : en
Pages : 374
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Book Description
Materials Science Forum Vol. 46
Author: R. M. Latanision
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Book Description
In this discussion the influence of grain boundary segregates and their interaction with the environment will be discussed with particular reference to hydrogen-induced intergranular embrittlement. Many of the elements which are found segregated at grain boundaries (i.e., the metalloid elements) are catalyst poisons for the hydrogen evolution reaction in electrolytes and, hence, stimulate hydrogen absorption. The use of glassy metal alloys (transition metal-metalloid type) as grain boundary analogs in studying hydrogen absorption and permeation is explored. Likewise, permeation experiments which distinguish between lattice, grain boundary and dislocation transport mechanisms will be discussed. (Author).
Author: Gary Steven Was
Publisher:
ISBN:
Category : Crystallography
Languages : en
Pages : 380
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Book Description
Materials Science Forum Vol. 46.
Author: Alexander Ziegler
Publisher:
ISBN:
Category :
Languages : en
Pages : 350
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Book Description
Author: Pavel Lejcek
Publisher: Springer Science & Business Media
ISBN: 3642125050
Category : Technology & Engineering
Languages : en
Pages : 249
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Book Description
Grain boundaries are important structural components of polycrystalline materials used in the vast majority of technical applications. Because grain boundaries form a continuous network throughout such materials, their properties may limit their practical use. One of the serious phenomena which evoke these limitations is the grain boundary segregation of impurities. It results in the loss of grain boundary cohesion and consequently, in brittle fracture of the materials. The current book deals with fundamentals of grain boundary segregation in metallic materials and its relationship to the grain boundary structure, classification and other materials properties.
Author: A. Kumar
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
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Book Description
Author:
Publisher:
ISBN:
Category : Grain boundaries
Languages : en
Pages : 0
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Book Description
Author: R.M. Latanision
Publisher: Springer Science & Business Media
ISBN: 9400936656
Category : Technology & Engineering
Languages : en
Pages : 726
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Book Description
For many years it has been recognized that engineering materials that are-tough and ductile can be rendered susceptible to premature fracture through their reaction with the environment. Over 100 years ago, Reynolds associated hydrogen with detrimental effects on the ductility of iron. The "season cracking" of brass has been a known problem for dec ades, but the mechanisms for this stress-corrosion process are only today being elucidated. In more recent times, the mechanical properties of most engineering materials have been shown to be adversely affected by hydrogen embrittlement or stress-corrosion cracking. Early studies of environmental effects on crack growth attempted to identify a unified theory to explain the crack growth behavior of groups of materials in a variety of environments. It is currently understood that there are numerous stress-corrosion processes some of which may be common to several materials, but that the crack growth behavior of a given material is dependent on microstructure, microchemistry, mechanics, surface chemistry, and solution chemistry. Although the mechanism by which various chemical species in the environment may cause cracks to propagate in some materials but not in others is very complex, the net result of all environmentally induced fracture is the reduction in the force and energy associated with the tensile or shear separation of atoms at the crack tip.
Author: Pacific Northwest Laboratory
Publisher:
ISBN:
Category : Grain boundaries
Languages : en
Pages :
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Book Description
Author: John R Low (Jr)
Publisher:
ISBN:
Category :
Languages : en
Pages : 37
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Book Description
The report discusses two investigations of temper embrittlement in low alloy quenched and tempered steel. Part I deals with additive effects of phosphorus and antimony as embrittling impurities in this type of grain-boundary embrittlement. Part II describes efforts to develop a method of determining the degree of segregation of alloys and impurities to grain-boundaries during temper embrittlement. The method under study involves neutron activation analysis of the etchant from etched intergranular fracture surfaces. (Author).
