WebNov 26, 2024 · The grain size of the SZ was fine and uniform owing to the complete dynamic recrystallization induced by severe deformation and high temperature. Further, the grain size of the AS-SZ was obviously larger than that of the RS-SZ, while the grain size distribution of RS-SZ was relatively uniform. WebJul 18, 2013 · Oxygen free high conductivity (OFHC) and electrolytic tough pitch (ETP) copper specimens of different grain sizes (10–800 μm) were tested at various constant …
Effect of initial grain size on dynamic recrystallization in …
WebWhile not attempting to be a review of palaeopiezometers, this chapter will present evidence for a ‘universal relation’ between deformation stress and the steady-state recrystallized grain size resulting from stress-induced … WebJan 14, 2024 · 2.2.3 Grain size evaluation for dynamic recrystallization If ε a (strain at a pass) is greater than the critical strain ε c, dynamic recrystallization is favored, leading to grain size governed by equation: d MDRX = 2.6 x 10 4 Z − 0.23 E11 Time for 50% completion of recrystallization (dynamic) is t 0.5 MDRX = 1.1 x Z − 0.8 exp 230000 RT … sons of italy murrells inlet
Supersolvus Recrystallization and Grain Growth Kinetics for the …
WebOf particular importance is dynamic recrystallization (DRX) resulting in the desired grain size directly during plastic deformation [11,12,13,14,15]. The main regularities of DRX have been fairly clarified in a number of papers [16,17,18,19,20]. The DRX grain size decreases with a decrease in deformation temperature and/or an increase in strain ... WebFeb 6, 2024 · The processing-grain size map showed that the DRX grain size decreased with the increase in Z, also revealing various characteristics ranging from a grain growth, grain refinement, to a bimodal distribution of ultrafine grains and partially recrystallized grains. The effect of twinning on the grain refinement was also evident at high Z conditions. WebJan 27, 2024 · In this paper, the powder metallurgy (P/M) Ni-based superalloy FGH4096 with an incomplete dynamic recrystallization structure was treated by a solution treatment at different temperatures, cooling methods, and holding times. The size, morphology, and distribution of grains and γ′ precipitates were characterized by an optical microscope … sons of italy lock haven