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Author: A. Kumar
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
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Author: A. Kumar
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
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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: 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:
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Category : Grain boundaries
Languages : en
Pages : 0
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Author: Tej Raj Singh Goel
Publisher:
ISBN:
Category :
Languages : en
Pages : 240
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Author: John R Low (Jr)
Publisher:
ISBN:
Category :
Languages : en
Pages : 37
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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).
Author: Harris L. Marcus
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
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Book Description
The results of this program are: The first direct experimental evidence for the phenomena of metastable grain boundary segregation and a model for its relation to the influence of environments on fracture behavior; The influence of grain boundary segregation on the grain boundary fracture of carburized steels; The segregation of As to the transgranular fracture surface of steels and how it related to the lowering of the fracture resistance of these steels; An electrochemical method of charging samples with both hydrogen and hydrogen recombination poisons to subsequently induce grain boundary failure in the Auger electron spectroscopy fracture studies of iron and nickel alloys; The application of X ray photoelectron spectroscopy to determine changes in electronic structure that can be related to the nature of the local bonding in the segregated region of iron intermetallic compounds.
Author: Aaron P. Stebner
Publisher: Springer
ISBN: 3319769685
Category : Technology & Engineering
Languages : en
Pages : 277
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Book Description
This collection is organized around the central theme of “Martensite by Design.” Contributions include design, microstructure, properties, advanced processing and manufacturing, performance, phase transformations, and characterization.
Author:
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Category :
Languages : en
Pages :
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Trace elements and impurities often segregate strongly to grain boundaries in metals and alloys. Concentrations of these elements at grain boundaries are often 103 to 105 times as great as their overall concentration in the alloy. Because of such segregation, certain trace elements can exert a disproportionate influence on material properties. One frequently observed consequence of trace element segregation to grain boundaries is the occurrence of grain boundary failure and low ductility. Less well known are incidences of improved ductility and inhibition of grain boundary fracture resulting from trace element segregation to grain boundaries in certain systems. An overview of trace element segregation and intergranular failure in a variety of alloy systems as well as preliminary results from studies on Al 3% Li will be presented.
Author:
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ISBN:
Category : Grain boundaries
Languages : en
Pages : 886
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