منابع مشابه
Solubility of carbon in tetragonal ferrite in equilibrium with austenite
There are precise observations which indicate the reluctance of excess carbon within bainite or martensite to partition into adjacent austenite in spite of prolonged heat treatment at temperatures where carbon is mobile. To explain this, we report the first calculations of the solubility of carbon in tetragonal ferrite that is in equilibrium with austenite. It is found that the solubility is dr...
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The solubility of CdF2 in the mixed solvent (water(1)+ethanol(2)) with mass fraction, W1 = 0.9,was determined by using solvent evaporating method in the presence of various concentrations(0.100, 0.200, 0.300, 0.400, 0.500, 0.600, 0.800 and 1.500 mo1.1)) of NaCI at 25°C. The values ofsolubility and solubility product constant of CdF2 in the mixed solvent were evaluated at zero ionicstrength upon...
متن کاملDiffusion of carbon in substitutionally alloyed austenite
where k and h are the Boltzmann and Planck constants, respectively, W is the number of octahedral interstices around a single such interstice, ~F* is an activation free energy, r m is an activity coefficient and), is the distance betwe-en (002) austenite planes. <1'= 1exp(-wy/kT); Wy is the nearest neighbour carbon-carbon interaction energy in austenite. () is the ratio of the number of carbon ...
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In this research, variant selection of martensite transformed from ultrafine-grained (UFG) austenite fabricated by accumulative roll bonding (ARB) process and subsequent annealing was investigated with respect tomorphology of parentaustenitic phase. The results show that the original shape of austenite grain is very effective factor in determiningthe preferred variants of martensite transformed...
متن کاملOctacalcium Phosphate Solubility Product from 4 to 37-Degree-C
Octacalcium phosphate (OCP) is proving to be an important intermediary in the formation of tooth and bone mineral and various pathological calcifications. Before this mineral can form, its solubility product must be exceeded. Thus, a knowledge of its precise values under various conditions is required for a basic understanding of calcification processes. The methodology suitable for measuring t...
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ژورنال
عنوان ژورنال: ISIJ International
سال: 1998
ISSN: 0915-1559
DOI: 10.2355/isijinternational.38.991