Spheroidizing – Metallurgical Processes - AZoM.com
网页Spheroidizing is a form of heat treatment for iron-based alloys, commonly carbon steels, in order to convert them into ductile and machinable alloys. It is conducted at temperatures that are slightly below the eutectoid temperature (temperature at which the solution is a solid solution rather than liquid), followed by a slow cooling process.
What is Spheroidization? - Material Welding
网页2021年6月9日 · Spheroidization or also called softening refers to the microstructural changes in steel when it is subjected to a high-temperature range of 850 °F to 1400 °F or 440 °C to 760 °C. At this temperature range, the carbide present in the CS and C-1/2Mo becomes unsteady & pile up as a spheroidal shape …
Spheroidizing in Steels: Processes, Mechanisms, Kinetic and ...
网页2021年6月27日 · This article reviews the processes, mechanisms, kinetics and microstructure that are achieved with the spheroidized treatment in steels, which are intended to soften the initial structure for its...
Spheroidization: The Impact of Precursor Morphology on …
网页2024年6月7日 · Spheroidization of precursors avoids the inhomogeneous distribution of LiOH and inhibits the preferential lithiation on particle surface, which can fundamentally solve the inhomogeneous phase transition of cathodes material. This strategy improves the cycling stability of the cathode material.
网页Spheroidization is conventionally achieved by prolonged annealing at temperatures that depend on the type of steel and the desired mechanical properties. The process consists of transforming the biphasic pearlite
A review on ICP powder plasma spheroidization process …
网页2022年2月1日 · Plasma spheroidization process has shown an excellent capability in enhancing particle geometries of powders from a variety of materials, particle size distributions, and arbitrary initial particle geometries.
Mechanisms of pearlite spheroidization: Insights from 3D …
网页2018年12月1日 · We found that the spheroidization of the plates, with aspect ratio < 25, is entirely governed by the recession of edges and corners towards the center, also known as termination-migration. When aspect ratio > 30, the mechanism of spheroidization is significantly altered due to nucleation and growth of discontinuities. In …
Effect of Various Spheroidizing Methods on Microstructure
网页2021年10月22日 · In this paper, spheroidizing heat treatment is applied by different methods to improve the hardness, impact toughness, and machinability–wear performance of high-carbon PM steels in relatively shorter periods. The results obtained from the study will make significant contributions to the literature on the subject.
Chapter 7: Spheroidization and Graphitization - ASM Digital Library
网页This chapter discusses the spheroidization of normalized and annealed steels by heating at subcritical temperatures. It explains how lamellar pearlite and proeutectoid cementite transform when heated and how deformation prior to heating affects both the mechanism and kinetics of spheroidization.
Dynamic Spheroidization Mechanism and Its Orientation …
网页2023年8月22日 · The dynamic spheroidization mechanism and its orientation dependence in Ti-6Al-2Mo-2V-1Fe alloys during subtransus hot deformation were studied in this work. For this purpose, hot compression tests were carried out at temperatures of 780–880 °C, with strain rates of 0.001–0.1 s −1.