The effect of M (M = Ce, Zr, Ce–Zr) on rolling microstructure and mechanical properties of FH40
Ce, Zr and Ce–Zr composite experimentl steel were prepared by vacuum induction furnace and 550 twin-roll reversible rolling mill. Optical microscope (OM), scanning electronic microscopy (SEM) and energy dispersive spectrometer (EDS) were used to observe the rolling microstructure of the experimental...
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doaj-ab4d90801e624472a3f024ea628537bd2021-05-03T04:37:57ZengDe GruyterHigh Temperature Materials and Processes2191-03242020-09-0139146647610.1515/htmp-2020-0082htmp-2020-0082The effect of M (M = Ce, Zr, Ce–Zr) on rolling microstructure and mechanical properties of FH40Xianghai Meng0Mengxing Li1Meng Wang2Zhe Wang3Yungang Li4Department of Metallurgy Engineering, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan, Hebei, 063210, ChinaDepartment of Metallurgy Engineering, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan, Hebei, 063210, ChinaDepartment of Mechanical Engineering, Tangshan Polytechnic College, Tangshan, Hebei, 63299, ChinaDepartment of Metallurgy Engineering, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan, Hebei, 063210, ChinaDepartment of Metallurgy Engineering, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan, Hebei, 063210, ChinaCe, Zr and Ce–Zr composite experimentl steel were prepared by vacuum induction furnace and 550 twin-roll reversible rolling mill. Optical microscope (OM), scanning electronic microscopy (SEM) and energy dispersive spectrometer (EDS) were used to observe the rolling microstructure of the experimental steel. The mechanical properties of the experimental steel were tested and analyzed. The effect of cerium zirconium oxide inclusions on nucleation, tensile and impact fracture mechanism of intragranular acicular ferrite (IAF) was investigated. The results show that the rolling microstructure of steel containing 0.0052% Ce and the steel under composite treatment containing 0.0053% Ce and 0.0055% Zr is refined. IAF generation can be induced by Al–Ce–O inclusion of the size of 4 µm or induced by Al–Ce–Zr–O + MnS inclusion of the size of 3 µm. The yield strength and tensile strength of the steel treated by Ce–Zr are 428 and 590 MPa, respectively, the elongation is 23.55%, the longitudinal impact energy at −60°C is 189 J, which are 31, 45, 46 J and 6.25%, respectively, higher than those of the matrix steel. The dimple of the experimental steel at the fracture surface is larger and deeper than that of the matrix steel. The small inclusions in uniform distribution contribute to the high tensile strength of the experimental steel.http://www.degruyter.com/view/j/htmp.2020.39.issue-2020/htmp-2020-0082/htmp-2020-0082.xml?format=INTshipbuilding steel platece–zr treatmentrolling microstructureinclusioniaf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xianghai Meng Mengxing Li Meng Wang Zhe Wang Yungang Li |
spellingShingle |
Xianghai Meng Mengxing Li Meng Wang Zhe Wang Yungang Li The effect of M (M = Ce, Zr, Ce–Zr) on rolling microstructure and mechanical properties of FH40 High Temperature Materials and Processes shipbuilding steel plate ce–zr treatment rolling microstructure inclusion iaf |
author_facet |
Xianghai Meng Mengxing Li Meng Wang Zhe Wang Yungang Li |
author_sort |
Xianghai Meng |
title |
The effect of M (M = Ce, Zr, Ce–Zr) on rolling microstructure and mechanical properties of FH40 |
title_short |
The effect of M (M = Ce, Zr, Ce–Zr) on rolling microstructure and mechanical properties of FH40 |
title_full |
The effect of M (M = Ce, Zr, Ce–Zr) on rolling microstructure and mechanical properties of FH40 |
title_fullStr |
The effect of M (M = Ce, Zr, Ce–Zr) on rolling microstructure and mechanical properties of FH40 |
title_full_unstemmed |
The effect of M (M = Ce, Zr, Ce–Zr) on rolling microstructure and mechanical properties of FH40 |
title_sort |
effect of m (m = ce, zr, ce–zr) on rolling microstructure and mechanical properties of fh40 |
publisher |
De Gruyter |
series |
High Temperature Materials and Processes |
issn |
2191-0324 |
publishDate |
2020-09-01 |
description |
Ce, Zr and Ce–Zr composite experimentl steel were prepared by vacuum induction furnace and 550 twin-roll reversible rolling mill. Optical microscope (OM), scanning electronic microscopy (SEM) and energy dispersive spectrometer (EDS) were used to observe the rolling microstructure of the experimental steel. The mechanical properties of the experimental steel were tested and analyzed. The effect of cerium zirconium oxide inclusions on nucleation, tensile and impact fracture mechanism of intragranular acicular ferrite (IAF) was investigated. The results show that the rolling microstructure of steel containing 0.0052% Ce and the steel under composite treatment containing 0.0053% Ce and 0.0055% Zr is refined. IAF generation can be induced by Al–Ce–O inclusion of the size of 4 µm or induced by Al–Ce–Zr–O + MnS inclusion of the size of 3 µm. The yield strength and tensile strength of the steel treated by Ce–Zr are 428 and 590 MPa, respectively, the elongation is 23.55%, the longitudinal impact energy at −60°C is 189 J, which are 31, 45, 46 J and 6.25%, respectively, higher than those of the matrix steel. The dimple of the experimental steel at the fracture surface is larger and deeper than that of the matrix steel. The small inclusions in uniform distribution contribute to the high tensile strength of the experimental steel. |
topic |
shipbuilding steel plate ce–zr treatment rolling microstructure inclusion iaf |
url |
http://www.degruyter.com/view/j/htmp.2020.39.issue-2020/htmp-2020-0082/htmp-2020-0082.xml?format=INT |
work_keys_str_mv |
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