LEADER 05252nam 2200613Ia 450 001 9910840538203321 005 20230829003144.0 010 $a1-280-85422-7 010 $a9786610854226 010 $a3-527-60795-1 010 $a3-527-60714-5 035 $a(CKB)1000000000377580 035 $a(EBL)482152 035 $a(OCoLC)658579236 035 $a(SSID)ssj0000170930 035 $a(PQKBManifestationID)11177895 035 $a(PQKBTitleCode)TC0000170930 035 $a(PQKBWorkID)10235915 035 $a(PQKB)10489169 035 $a(MiAaPQ)EBC482152 035 $a(EXLCZ)991000000000377580 100 $a20050708d2006 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aHigh temperature strain of metals and alloys$b[electronic resource] $ephysical fundamentals /$fValim Levitin 210 $aWeinheim ;$aChichester $cWiley-VCH$d2006 215 $a1 online resource (181 p.) 300 $aDescription based upon print version of record. 311 $a3-527-31338-9 320 $aIncludes bibliographical references and index. 327 $aHigh Temperature Strain of Metals and Alloys; Contents; Introduction; 1 Macroscopic Characteristics of Strain of Metallic Materials at High Temperatures; 2 The Experimental Equipment and the in situ X-ray Investigation Technique; 2.1 Experimental Installation; 2.2 Measurement Procedure; 2.3 Measurements of Structural Parameters; 2.4 Diffraction Electron Microscopy; 2.5 Amplitude of Atomic Vibrations; 2.6 Materials under Investigation; 2.7 Summary; 3 Structural Parameters in High-Temperature Deformed Metals; 3.1 Evolution of Structural Parameters; 3.2 Dislocation Structure 327 $a3.3 Distances between Dislocations in Sub-boundaries3.4 Sub-boundaries as Dislocation Sources and Obstacles; 3.5 Dislocations inside Subgrains; 3.6 Vacancy Loops and Helicoids; 3.7 Total Combination of Structural Peculiarities of High-temperature Deformation; 3.8 Summary; 4 Physical Mechanism and Structural Model of Strain at High Temperatures; 4.1 Physical Model and Theory; 4.2 Velocity of Dislocations; 4.3 Dislocation Density; 4.4 Rate of the Steady-State Creep; 4.5 Effect of Alloying: Relationship between Creep Rate and Mean-Square Atomic Amplitudes 327 $a4.6 Formation of Jogs. Low-Angle Sub-boundaries in f.c.c. and b.c.c. Crystal Lattices4.7 Significance of the Stacking Faults Energy; 4.8 Stability of Dislocation Sub-boundaries; 4.9 Scope of Application of the Theory; 4.10 Summary; 5 Simulation of the Evolution of Parameters during Deformation; 5.1 Parameters of the Physical Model; 5.2 Equations; 5.2.1 Strain Rate; 5.2.2 Change in the Dislocation Density; 5.2.3 The Dislocation Slip Velocity; 5.2.4 The Dislocation Climb Velocity; 5.2.5 The Dislocation Spacing in Sub-boundaries; 5.2.6 Variation of the Subgrain Size 327 $a5.2.7 System of Differential Equations5.3 Results of Simulation: Changes in the Structural Parameters; 5.4 Density of Dislocations during Stationary Creep; 5.5 Summary; 6 High-temperature Deformation of Superalloys; 6.1 ? ? Phase in Superalloys; 6.2 Changes in the Matrix of Alloys during Strain; 6.3 Interaction of Dislocations and Particles of the Hardening Phase; 6.4 Dependence of Creep Rate on Stress. The Average Length of the Activated Dislocation Segments; 6.5 Mechanism of Strain and the Creep Rate Equation; 6.6 Composition of the ? ? Phase and Mean-square Amplitudes of Atomic Vibrations 327 $a6.7 Influence of the Particle Size and Concentration6.8 The Prediction of Properties on the Basis of Integrated Databases; 6.9 Summary; 7 Single Crystals of Superalloys; 7.1 Effect of Orientation on Properties; 7.2 Deformation of Single-crystal Superalloys at Lower Temperatures and Higher Stress; 7.3 Deformation of Single-crystal Superalloys at Higher Temperatures and Lower Stress; 7.4 On the Composition of Superalloys; 7.5 Rafting; 7.6 Effect of Composition and Temperature on ?/? ? Misfit; 7.7 Other Creep Equations; 7.8 Summary; 8 High-temperature Deformation of Some Refractory Metals 327 $a8.1 The Creep Behavior 330 $aCreep and fatigue are the most prevalent causes of rupture in superalloys, which are important materials for industrial usage, e.g. in engines and turbine blades in aerospace or in energy producing industries. As temperature increases, atom mobility becomes appreciable, affecting a number of metal and alloy properties. It is thus vital to find new characterization methods that allow an understanding of the fundamental physics of creep in these materials as well as in pure metals.Here, the author shows how new in situ X-ray investigations and transmission electron microscope studies lead to 606 $aMetals$xEffect of high temperatures on 606 $aAlloys$xThermal properties 615 0$aMetals$xEffect of high temperatures on. 615 0$aAlloys$xThermal properties. 676 $a620.1617 676 $a669.83 700 $aLevitin$b Valim$01613926 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910840538203321 996 $aHigh temperature strain of metals and alloys$94139607 997 $aUNINA