书名:超细晶材料的晶界和超塑性(影印版)
作者:[西]A•日尔亚耶夫责编:许雅莹
I S B N:978-7-5603-6393-6定价:220元
出版日期:2017-10-01开本:16
所属丛书:页数:312
图书分类:A.材料科学与工程类中图分类: TG金属学与金属工艺

【内容简介】

本书讨论了多晶体材料中超塑性和晶界滑动的问题,探讨了晶界形成和演化的微观结构,分析了经过剧烈塑性变形的材料的晶界、纹理和系综的变化,同时考察了晶界在晶粒间界扩散、弛豫和晶粒生长过程中的作用。

本书适合从事超塑性研究的相关人员使用,也可供高等院校相关专业的师生参考。

  

【目  录】

1

STRUCTURAL SUPERPLASTICITY OF POLYCRYSTALLINE MATERIALS

1.1.Structural levelsspatial scales and description levels

1.2 Structural superplasticityfrom the combination of mechanisms to cooperative grain boundaries sliding

1.3.Structural superplasticityfrom mesodescription to macrochafacteristics

References

2

CHARACTERISTICS OF GRAIN BOUNDARY ENESEMBLES

2.1.Crystal geometry and structure of intercrystalline boundaries

2.1.1.Methods for describing the structure of the grain boundaries

2.1.2.Analytical representation of the basis of the coincident—site lattice for cubic Lattices

2.2.Special grain boundaries in the monoclinic lattice

2.3.Description of the grain boundary misorientation distributionGBMD

2.4.Computer model of a polycrystala calculation algorithm

References

3

ORIENTATION—DISTRIBUTED PARAMETERS OF

THE POLYCRYSTALLINE STRUCTURE

3.1.The distribution function of the grains with respect to crystallographic orientationscalculation methods

3.2.Relationship between the grain boundary misorientation distribution and the ODF

3.3.Correlation orientation of adjacent grainsthe concept of the basis spectra of misorientation of the grain boundaries

3.4.Modelling the misorientation spectra of the grain boundaries in the FCC crystals with modelling ODF

4

EXPERIMENTAL INVESTIGATIONS OF GRAIN BOUNDARY

ENSEMBLES IN POLYCRYSTALS

4.1.Diffraction methods of measuring misorientation

4.1.1.Methods of measuring the misorientation of two adjacent grains

4.1.2.The experimental measurement error

4.2 Experimental spectra of the grain boundaries in FCC polycrystals

4.3.Orientation distribution function in NiCr alloyexperimental and modelling GBMDs

4.3.1.Orientation distribution function in Ni—Cr alloy and stainless steels

4.3.2.Modelling spectra of the misorientation of the grain boundaries in NiCr alloy and AISI stainless steelscomparison with the experimental results

4.4.Special features of the grain boundaries in the FCC materials with a high stacking fault energy

4.4.1.Rolling and annealing texture of aluminium

4.4.2.Grain boundary ensembles in aluminiumexperiments and modelling

References

5

GRAIN BOUNDARY SLIDING IN METALLIC BI—AND TRICRYSTALS

5.1.Dislocation nature of grain boundary sliding GBS

5.2.Formulation of the model of stimulated grain boundary sliding

5.3.Formal solution and its analysis

5.4.Special features of pure grain boundary sliding

5.5.Local migration of the grain boundary as the mechanism of reorganisation of the triple junction weak migration

approximation

5.6.Variance formulation of the system of equations for the shape of the boundary and pile—up density

5.7.The power of pile—ups of grain boundary dislocations

References

6

PERCOLATION MECHANISM OF DEFORMATION PROCESSES IN

ULTRAFINE—GRAINED POLVCRVSTALS

6.1.Pcrcolation mechanism of the formation of a band of cooperative grain boundary sliding

6.2.Conditions of formation of CGBS bands as the condition of realisation of the superplastic deformation regime

6.3.Shear rate along the CGBS band

6.4.Kinetics of deformation in CGBS bands

6.5.Comparison of the calculated values with the expcrimental

results

Refercnces

7

PERCOLATION PROCESSES IN A NETWORK OF GRAIN

BOUNDARIES IN ULTRAFINE—GRAINED MATERIALS

7.1.Effect of grain boundaries on oxidation and diffusion processes in polycrystalline oxide films

7.2.Highresolution electron microscopy of zirconium oxidegrain clusterssurrounded only by special boundaries

7.3.Effect of the statistics of the grain boundaries on diffusion in zirconium oxide

7.4.Special Features of oxidation kinetics under the effect of stresses at the metaloxide boundary

7.5.Texture and spectrum of misorientation of the grain boundaries in an NiO film on100and 111substratesmodelling and experiments

References

8

MICROSTRUCTURE AND GRAIN BOUNDARY ENSEMBLES IN

ULTRAFINE—GRAINED MATERIALS

8.1.Methods of producing ultrafine—grained and nanostructured materials by severe plastic deformation

8.2 Effect of the parameters of quasi—hydrostatic pressure on the microstructure and grain boundary ensembles in nickel

8.3.Spectrum of misorientation of grain boundaries in ultrafine—grained nickel

8.4.Advanced methods of automatic mcasurement of the grain boundary parameters

8.5.The misorientation distribution of the grain boundaries in ultrafinegrained nickelexperiments and modelling

References

9

GRAIN BOUNDARY PROCESSES IN ULTRAFINE—GRAINED NICKEL

AND NANONICKEL

9.1.Grain growth kinetics in ECAP specimens

9.2.Activation energy and stored enthalpy in ultrafine—grained nickel

9.3.Evolution of the microstructure and texture in HPT nickel in annealing

9.4.Superplasticity of nanocrystalline nickel

References

10

DURATION OF THE STABLE FLOW STAGE IN SUPERPLASTIC

DEFORMATION

10.1.Superplastic capacity and the rate sensitivity parameter

10.2.Description of thickness differences of a flat specimen in tensile deformation

10.3.Formation of thickness difference as a random process

10.4.Absorption condition and the equation for limiting strain

10.5.Some properties of limiting strain

References

11

DERIVATION OF CONSTITUTIVE EQUATIONS IN MULTICOMPONENT

LOADING CONDITIONS

11.1.From the deformation mechanism to constitutive equations

11.2.Kinematics ofpolycrystalline continuum

11.3.Strain rate tensor determined by shear along the CGBS bands

11.4.Degenerate cases and variants of coaxiality of the tensors

References

CONCLUSION

INDEX


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