Relation between Fine Ferrite-Pearlite Microstructure Produced by Controlled Rolling and Cooling and the Subsequent Rapid Spheroidization of Medium Carbon Steel
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چکیده
منابع مشابه
Three Dimensional Optical Microstructure Analysis of Ferrite and Pearlite Phases in a Medium Carbon Steel
This work presents a three dimensional microstructural analysis of medium carbon steels, based on serial sectioning using optical microscopy. The microstructural phases considered here are ferrite and pearlite. Typically conventional 2D microscopy is used to analyze these phases, with eddy current or ultrasonic methods as alternatives. Medium carbon steel samples were heat treated in a furnace ...
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An extremely fine, fully pearlitic structure with an interlamellar spacing 30–50 nm has been obtained during continuous cooling transformation at a rate as low as 0.1 C s, of the steel that is normally used to produce nanostructured bainite. The solutes cobalt and aluminium have been added to accelerate the rate of reaction and reduce the interlamellar spacing by increasing the free energy of t...
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examining the relationship between fear of negative evaluation and communication strategies by iranian efl learners
the purpose of the present study was to investigate the relationship between fear of negative evaluation (fne) and communication strategies (css) among iranian efl learners. it was aimed to examine the differences in the use of communication strategies between speakers with high or low degree of fear of negative evaluation. the current study was a case study consisting of 10 english learners at...
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ژورنال
عنوان ژورنال: Tetsu-to-Hagane
سال: 1990
ISSN: 0021-1575,1883-2954
DOI: 10.2355/tetsutohagane1955.76.1_73