high angle grain boundaries
A multiscale constitutive model for intergranular stress corrosion cracking in type 304 austenitic stainless steel
... at grain boundaries which is accompanied by the depletion of chromium in the vicinity of these regions and therefore susceptibility to IGSCC ...the boundaries [8]. Grain boundary structure has ...
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The Effects of Anodization Treatment on the Microstructure and Fatigue Behavior of 7075 T73 Aluminum Alloy
... The fatigue behaviors of 7075-T73 alloy with / without anodization / sealing treatment were investigated in this study. The microstructure of different samples was analyzed by electron microscopy. As the experiments, the ...
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Microstructural Evolution and Hardness of Dissimilar Lap Joints of ODS/Stainless Steel by Friction Stir Welding
... fine-equiaxed grain structure with high angle grain boundaries in the ...large grain structure (>200 ...low angle grain boundary structures present in this ...and ...
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Development of High Ductility and Adequate Strength in Pure Titanium Recycled from Chips by Multi Pass Equal Channel Angular Pressing
... low angle grain boundaries (with misorienta- tion <15) were substantially presented within coarse grains which were enclosed by high angle grain boundaries ...by ...
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Effects of Electric Field Treatment on Corrosion Behavior of a Ni Cr W Mo Superalloy
... angle grain boundaries and the annealing twins occurred by the formation and growth of the annealing twins during the electric field treatment, as well as the improvement of exhaustion of Cr and Mo ...
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Evaluation of Grain Refinement and Mechanical Property on Friction Stir Welded Inconel 600
... as high angle grain boundaries were distributed more than 85% in fraction, with equiaxed grains, and the grain refinement was accelerated from average grain size of 19 mm in the ...
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The Control of Oxidation Induced Intergranular Embrittlement by Grain Boundary Engineering in Rapidly Solidified Ni Fe Alloy Ribbons
... at high temperatures in the case that extremely deep penetration of oxidation along grain boundaries can take place inside the ...at high temperatures. Excellent high-temperature ...
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Atomistic and First Principles Studies of Pb Segregation to Al Grain Boundaries and its Influence on Thermal Stability and Mechanical Behavior
... tilt boundaries, with and without Pb substitution on the grain ...of grain orientation and grain size become ...of grain orientation and grain size on deformation can be easily ...
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Grain boundary relaxation and its effect on plasticity in nanocrystalline Fe
... volume-averaged grain size and root mean square 共rms兲 stain were determined by the Warren-Averbach analysis. 23 To pre- pare samples for hardness and strain-rate sensitivity mea- surements, the powder was ...
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Direct observation of precipitation along twin boundaries and dissolution in a magnesium alloy annealing at high temperature
... twin boundaries and matrix were largely free from precipitates after cold ...twin boundaries became decorated by precip- itates, ...twin boundaries coarsened, ...
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Effect of Element Addition and Heat Treatment Process on the Properties of High Manganese Steel
... of high Manganese steel was not much ...with grain fine which dispersed in the matrix with the formation of these dispersed carbide particles will contribute to increasing the alloy's abrasion ...of ...
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Structure and Configuration of Boundary Dislocations on Low Angle Tilt Grain Boundaries in Alumina
... low angle grain boundaries in ceramics were composed of dissociated dislocations, where individual dislocation is divided into partial dislocations with very narrow separation distance, forming a ...
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Effect of Aluminium on Mechanical Properties of low strength low alloy Welds
... austenite grain boundaries or intra granular ...the grain boundaries and had a lath-like ...low angle boundaries showed low impact toughness ...as high as ...
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Effects of Grain Boundary Misorientation on Radiation Induced Solute Segregation in Proton Irradiated 304 Stainless Steels
... near grain boundaries, Cr will be further depleted at grain boundaries after ...from grain boundary where the concentration gradient flux exceeds the inverse-Kirkendall flux, Cr will move ...
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Morphological and Electrochemical Properties of Crystalline Praseodymium Oxide Nanorods
... its high-K dielectric with an effective dielectric constant of around 30 and very low leakage currents ...as high electrical conductive materials [2], a semiconduct- ing oxide for dielectric materials [3], ...
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Microstructure and properties of Mg-Nd-Zn-Zr alloys
... along grain boundaries, as shown in ...for grain amalgamating during the heat treatment, which is carried out for a long period of ...a grain growth from 120 m to 175 m after the heat ...
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Incremental ECAP as a method to produce ultrafine grained aluminium plates
... Abstract. In this work, we propose a new approach to produce ultrafine grained plates using a modified ECAP method, namely incremental ECAP. Unlike conventional ECAP, incremental ECAP works in small steps in which ...
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Contribution of energetically reactive surface features to the dissolution of CeO2 and ThO2 analogues for spent nuclear fuel microstructures
... with high misorientation angle grain boundaries retreating more rapidly than those with low misorientation angles, which may be due to the accommodation of defects in the grain boundary ...
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Location and distribution of micro-inclusions in the EDML and NEEM ice cores using optical microscopy and in situ Raman spectroscopy
... a grain-size-reducing effect (Du- rand et ...deformed grain into subgrain boundaries, which are lower energy states of dislocation assemblages (Hirth and Lothe, 1982; Hondoh, ...Subgrain ...
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Mechanical Properties of Fine Grained, Sintered Molybdenum Alloys with Dispersed Particles Developed by Mechanical Alloying
... smaller grain size than ...smaller grain size than M/S specimens. As the final grain size is determined by the pinning effects of dispersed particles formed during HIP or SPS, the observed difference in ...
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