| Preface to 2nd edition |
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xi | |
| Acknowledgments |
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xiii | |
| Introduction |
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xv | |
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Section A Advanced processing of ultrafine-grained and nanostructured materials |
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1 | (158) |
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1 Basics of nanostructure processing |
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3 | (30) |
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1.1 Microstructure evolution during severe plastic deformation |
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4 | (10) |
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1.2 Influence of materials type and deformation condition on grain refinement |
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14 | (13) |
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1.3 Thermostability of ultrafine-grained materials |
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27 | (3) |
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30 | (3) |
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2 Influence of deformation mechanisms on grain refinement |
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33 | (42) |
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2.1 Kinetics of fragmentation and deformation mechanisms during SPD |
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33 | (7) |
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2.2 Scale of fragments and shear bands |
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40 | (11) |
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2.3 Scale factor effect on grain refinement |
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51 | (12) |
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2.4 Strain value and its distribution at SPD |
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63 | (8) |
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71 | (4) |
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3 Processing ultrafine-grained and nanostructured materials |
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75 | (84) |
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3.1 Severe and combined techniques of plastic structure formation |
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75 | (22) |
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97 | (25) |
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3.3 Multidirectional forging |
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122 | (32) |
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154 | (5) |
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Section B Grain boundary ensembles in polycrystalline materials |
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159 | (94) |
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4 Characteristics of grain boundary ensembles |
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161 | (26) |
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4.1 Crystal geometry and structure of intercrystalline boundaries |
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161 | (10) |
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4.2 Special grain boundaries in the monoclinic lattice |
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171 | (5) |
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4.3 Description of the grain boundary misorientation distribution |
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176 | (3) |
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4.4 Computer model of a polycrystal: A calculation algorithm |
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179 | (7) |
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186 | (1) |
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5 Orientation-distributed parameters of the polycrystalline structure |
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187 | (24) |
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5.1 The distribution function of the grains with respect to crystallographic orientations: Calculation methods |
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187 | (3) |
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5.2 Relationship between the grain boundary misorientation distribution and the ODF |
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190 | (5) |
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5.3 Correlation orientation of adjacent grains: The concept of the basis spectra of misorientation of the grain boundaries |
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195 | (6) |
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5.4 Modeling the misorientation spectra of the grain boundaries in the FCC crystals with modeling ODF |
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201 | (7) |
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208 | (3) |
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6 Experimental investigations of grain boundary ensembles in polycrystals |
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211 | (42) |
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6.1 Diffraction methods of measuring misorientation |
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211 | (1) |
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6.2 Methods of measuring the misorientation of two adjacent grains |
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211 | (5) |
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6.3 The experimental measurement error |
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216 | (6) |
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6.4 Experimental spectra of the grain boundaries in FCC polycrystals |
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222 | (5) |
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6.5 Orientation distribution function in Ni-Cr alloy: Experimental and modeling GBMDs |
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227 | (8) |
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6.6 Special features of the grain boundaries in the FCC materials with a high stacking fault energy |
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235 | (15) |
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250 | (3) |
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Section C Microstructure and grain boundary ensembles in ultrafine-grained materials |
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253 | (46) |
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7 Effect of the parameters of quasihydrostatic pressure on the microstructure and grain boundary ensembles in nickel |
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255 | (18) |
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7.1 Microhardness measurements |
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256 | (4) |
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7.2 Spectrum of misorientation of grain boundaries in ultrafine-grained nickel |
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260 | (1) |
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7.3 Advanced methods of automatic measurement of the grain boundary parameters |
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261 | (2) |
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7.4 The misorientation distribution of the grain boundaries in ultrafine-grained nickel: Experiments and modeling |
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263 | (9) |
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272 | (1) |
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8 Grain boundary processes in ultrafine-grained nickel and nanonickel |
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273 | (26) |
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8.1 Grain growth kinetics in ECAP specimens |
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273 | (7) |
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8.2 Activation energy and stored enthalpy in ultrafine-grained nickel |
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280 | (7) |
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8.3 Evolution of the microstructure and texture in HPT nickel in annealing |
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287 | (3) |
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8.4 Superplasticity of nanocrystalline nickel |
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290 | (6) |
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296 | (3) |
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Section D Theory of structural superplasticity of polycrystalline materials |
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299 | (110) |
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9 Structural superplasticity of polycrystalline materials |
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301 | (16) |
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9.1 Structural levels, spatial scales, and description levels |
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301 | (3) |
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9.2 Structural superplasticity: From the combination of mechanisms to cooperative grain boundaries sliding |
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304 | (8) |
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9.3 Structural superplasticity: From meso-description to macrocharacteristics |
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312 | (3) |
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315 | (2) |
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10 Grain boundary sliding in metallic bi- and tricrystals |
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317 | (38) |
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10.1 Dislocation nature of grain boundary sliding (GBS) |
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317 | (4) |
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10.2 Formulation of the model of stimulated grain boundary sliding |
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321 | (7) |
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10.3 Formal solution and its analysis |
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328 | (3) |
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10.4 Special features of pure grain boundary sliding |
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331 | (4) |
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10.5 Local migration of the grain boundary as the mechanism of reorganization of the triple junction: Weak migration approximation |
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335 | (8) |
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10.6 Variance formulation of the system of equations for the shape of the boundary and pile-up density |
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343 | (5) |
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10.7 The power of pile-ups of grain boundary dislocations |
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348 | (4) |
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352 | (3) |
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11 Percolation mechanism of deformation processes in ultrafine-grained polycrystals |
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355 | (24) |
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11.1 Percolation mechanism of the formation of a band of cooperative grain boundary sliding |
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355 | (4) |
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11.2 Conditions of formation of CGBS bands as the condition of realization of the superplastic deformation regime |
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359 | (3) |
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11.3 Shear rate along the CGBS band |
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362 | (1) |
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11.4 Kinetics of deformation in CGBS bands |
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363 | (5) |
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11.5 Comparison of the calculated values with the experimental results |
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368 | (9) |
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377 | (2) |
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12 Duration of the stable flow stage in superplastic deformation |
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379 | (16) |
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12.1 Superplastic capacity and the rate sensitivity parameter |
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379 | (2) |
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12.2 Description of thickness differences of a flat specimen in tensile deformation |
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381 | (2) |
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12.3 Formation of thickness difference as a random process |
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383 | (3) |
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12.4 Absorption condition and the equation for limiting strain |
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386 | (5) |
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12.5 Some properties of limiting strain |
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391 | (2) |
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393 | (2) |
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13 Derivation of constitutive equations in multicomponent loading conditions |
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395 | (14) |
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13.1 From the deformation mechanism to constitutive equations |
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395 | (2) |
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13.2 Kinematics of polycrystalline continuum |
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397 | (3) |
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13.3 Strain rate tensor determined by shear along the CGBS bands |
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400 | (4) |
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13.4 Degenerate cases and variants of coaxiality of the tensors |
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404 | (3) |
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407 | (2) |
| Conclusion |
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409 | (4) |
| Index |
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413 | |
Lisainfo e-raamatute kohta