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1 Finally the mechanism of powder spheroidization was analysed.
2 The amount of carbon and silicon affects spheroidization of graphite.
3 This paper researched the refining and spheroidization mechanics of the semi-solid grains of AZ91D magnesium alloys by SIMA.
4 Recrystallization is the necessary condition for spheroidization of the deformed texture.
5 The influence of alloying and spheroidization process on microstructure and mechanical properties of UHCS is investigated.
6 With the rising soaking temperature,(www.Sentencedict.com) the grain spheroidization accelerates and the average dimension of grains diminishes at the same soaking time.
7 Pearlite spheroidization is irregular changing of metallographical image and has the features of fractal, so it can be described by technique of fractal.
8 The electron structure criterion of the behaviors of graphitization and spheroidization of elements are given out.
9 That is, all factors favorite in both forming spherical nuclei and growing in all directions in the iron melt can be regarded as factors promoting graphite spheroidization.
10 It is found that raising the temperature and prolonging soaking time of spheroidizing heat treatment promoting the spheroidization of carbides.
11 The results show that both shape and number of residual carbides are two key parameters affecting the spheroidization.
12 The simulation results reflect the microscopic process such as grain contact,(sentencedict.com) sintering neck growth and pore spheroidization.
13 With high content of Al, the carbide growth tendency of UHCS was decreased during spheroidization, which avail to restrain the growth of matrix.
14 It is a basic demand for evaluating the microstructure and performance to determine the graphite size and its spheroidization rate in nodular cast iron.
15 The recrystallization of semisolid AZ91D alloy made by the stress induced melt activated process(SIMA) and its role to the spheroidization of the alloy are studied.
16 It has become a normal practice to estimate coker drum's service life by the extent of spheroidization of 20g steel in delayed coker operating at high temperatures.
17 Through the study on both the internal structure and the nucleus shape in low carbon ductile iron, influencing regularity of the nucleus shape on the graphite spheroidization has been discussed.
18 The results show that the uneven distribution banded carbide due to abnormal spheroidization is one of important factors causing the quality problems of the valves after electric upsetting.
19 It is shown that the size of carbide will be decreased and rate of spheroidization will e increased with decreased of pearlite piece of original structure.
20 Increasing the semisolid isothermal heat treatment temperature can promote solute diffusion and quicken grain spheroidization speed.
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