WebMay 1, 2010 · ``Introduction to Grains, Phases, and Interfaces—an Interpretation of Microstructure,'' Trans. AIME, 1948, vol. 175, pp. 15-51, by C.S. Smith WebThe effect of precipitates on austenite grain growth behavior in a Nb-V microalloyed steel was investigated. The precipitates were identified by selected area electron diffraction (SAED) and energy dispersive spectrometer (EDS) analysis. Because of pinning effect of NbC and/or VC on austenite grain boundaries, grains grew slowly at 850oC-1000oC.
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WebAug 17, 1998 · Abnormal grain growth in 0.75‐μm‐thick aluminum alloy thin films has been studied using x‐ray diffractometry, plan‐view and cross‐sectional transmission electron microscopy, scanning transmission electron microscopy, and energy dispersive x‐ray analysis. Transmission electron microscopy was used with preannealed samples as well … WebThis work has studied the influence of different Ti and N compositions on hot deformation strength by determining the peak stress of flow curves and the activation energy (dynamic recrystallisation). It has also assessed their influence on static recrystallisation by means of the statically recrystallised fraction versus time and the activation energy. derham close creech st michael
Grains, Phases, and Interfaces an Interpretation of …
WebFeb 1, 1970 · The surface energies of solid molybdenum, niobium, tantalum, and tungsten at 1500 °C have been determined using the multi-phase equilibration technique. The values obtained were 2050, 2550, 2680 and 2830 erg/cm 2, respectively. The grain boundary energy/surface energy ratios for the four metals varied from 0.28 to 0.38 with … WebSmith, C S Publication Date: Tue Jun 01 00:00:00 EDT 1948 Research Org.: Originating Research Org. not identified OSTI Identifier: 4436389 NSA Number: NSA-01-000484 Resource Type: Journal Article Journal Name: Metals Technology Additional Journal Information: Journal Volume: Vol: 15, No. 4; Other Information: AIME Technical … WebMar 1, 1983 · The observed effects of the current pulses include: (a) a reduction in the temperature for the onset of recrystalllzation, (b) a reduc- tion in the volume fraction of annealing twins and (c) an enhancement of the rate of grain growth. Experimental Copper (99.9%) wires were cold worked at room temperature to ~50% reduction in thickness by ... chronic prostatitis treatment uk