Effect of Repeated Austenitisation and Cooling on the Microstructure, Hardness and Tensile Behaviour of 0.16 wt % Carbon Steel

• Autorzy: Subhani A. R. , Mondal D. K.

Identyfikatory

DOI

10.24425/123787

• Języki publikacji: EN

Abstrakty

EN

Repeated austenitisation and furnace cooling of homogenised 0.16 wt. % carbon steels result in ferrite grain sizes between 27 μm and 24 μm. Similarly, repeated austenitisation and normal-air cooling produces ferrite grain sizes between 17 μm and 12 μm; while repeated austenitisation and forced-air cooling produces a minimum grain size of 9.5 μm. Furnace cooling decomposes the austenite eutectoidally to lamellar pearlite; while normal-air cooling and forced-air cooling after austenitisation cause degen eration of pearlite regions producing grain boundary network as well as cluster of cementite and other carbides. Forced-air cooled samp les provide the highest YS (364 MPa) and UTS (520 MPa); while furnace cooling provides the lowest (290 MPa and 464 MPa) leaving the normal-air cool performance in between. Hardness values depict the role of individual ferrite and pearlite content and the extent of pearlite degeneration occurring after each cyclic treatment.

Słowa kluczowe

EN

ferrite grain size; pearlite degeneration; hardness; tensile behaviour

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2018
• Tom: Vol. 63, iss. 3
• Strony: 1141--1152
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr., wzory

Twórcy

autor

Subhani A. R.

• Research Scholar, Metallurgical and Materials Engineering Department, National Institute of Technology, Durgapur, India

autor

Mondal D. K.

• Metallurgical and Materials Engineering Department, National Institute of Technology, Durgapur, India

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).