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Journal of Iron and Steel Research International

Erschienen in:

06.06.2019 | Original Paper

Effect of cooling rate on microstructure, hardness, and residual stress of 0.28C–0.22Ti wear-resistant steel

verfasst von: Chen Dong, Hui-bin Wu, Xi-tao Wang

Erschienen in: Journal of Iron and Steel Research International | Ausgabe 8/2019

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Abstract

The microstructure, hardness, and residual stress of 0.28C–0.22Ti wear-resistant steel produced with cooling rates varying from 80.0 to 0.3 °C/s were determined using a dilatometer, scanning electron microscope, Vickers hardness tester, and nanoindentation tester. The results showed that the hardness of martensite decreased at a rate of approximately 0.935 HV/s with carbon diffusion time (the cooldown time required to transition from A_r3, 635–100 °C). The range of the residual stress caused by the hard particles decreased with decreasing cooling rate, from − 400–300 MPa (cooling rate 40 °C/s) to − 200–100 MPa (cooling rate 0.5 °C/s), proving that the TiC particles significantly contributed to the residual stress in the high-titanium steels.

Vorheriger Artikel Hot working process optimization of Fe–20Mn–19Cr–0.5C–0.6N steel by activation energy, power dissipation and microstructural evolution

Nächster Artikel Austenite grain growth and its effect on splitting fracture property of a V–N microalloyed medium carbon steel connecting rod

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Titel: Effect of cooling rate on microstructure, hardness, and residual stress of 0.28C–0.22Ti wear-resistant steel
verfasst von: Chen Dong
Hui-bin Wu
Xi-tao Wang
Publikationsdatum: 06.06.2019
Verlag: Springer Singapore
Erschienen in: Journal of Iron and Steel Research International / Ausgabe 8/2019
Print ISSN: 1006-706X
Elektronische ISSN: 2210-3988
DOI: https://doi.org/10.1007/s42243-019-00283-1

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