Austenitic Grain-Size of Steel | Metallurgy Inherently fine grained steel resists coarsening up to its grain coarsening temperature and then, abruptly increases rapidly its austenite grain size, so that at sufficiently high temperature, its austenite grains may be even larger than that of inherently coarse grained steel. These coarse grains do not get refined in subsequent slow cooling ...
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The formation of ultra-fine grained steels is an area of intense research around the world. There are a number of methods to produce grain sizes of approximately 1 m, ranging from extreme thermal and deformation cycles to more typical thermomechanical processes. Related searches fine grained steel or coarse grained steel
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Comparison of electrochemical behavior between coarse-grained fine grained steel or coarse grained steel In this study, the electrochemical behavior of coarse-grained and fine-grained AISI 430 ferritic stainless steel in 0.1 M HNO 3 solution was investigated. Potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) measurements showed that grain refinement operation offer better conditions for forming the passive films.
The so-called "fine-graine" steel increases its size on heating above Ac 3 but the temperature at which the grain size becomes relatively coarse is definitely higher than that at which a "coarse-grained" steel develops a similar size. The fine-grained steels are "killed" with silicon together with a slight excess of aluminium which forms fine grained steel or coarse grained steel Austenitic Grain-Size of Steel | Metallurgy Inherently fine grained steel resists coarsening up to its grain coarsening temperature and then, abruptly increases rapidly its austenite grain size, so that at sufficiently high temperature, its austenite grains may be even larger than that of inherently coarse grained steel. These coarse grains do not get refined in subsequent slow cooling fine grained steel or coarse grained steel Grain Size and Its Influence on Materials Properties The effect of grain size is greatest on properties that are related to the early stages of deforma-tion. Thus, for example, yield stress is more dependent on grain size than ten-sile strength [2, 3]. Fine-grain steels do not harden quite as deeply and have less tendency to crack than coarse-grain steels of similar analysis. Also, fine-grain fine grained steel or coarse grained steel
Fine grain steels have excellent weldability and they can be welded by all standard methods. Steels susceptibility to cold cracking can be estimated on the basis of its chemical composition. Particularly suitable for this is the carbon equivalent (CET).
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