INFLUENCE OF RARE-EARTH ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HIGH MANGANESE STEEL UNDER IMPACT LOAD

In this paper, the influence of rare earth (RE) on the microstructure and mechanical properties of austenitic high manganese steel (HMnS) Mn15Cr2V were investigated. The results showed that the microstructure, hardness and impact strength of RE modification sample is finer and better than non-modifi...

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Main Authors: Duong Nam Nguyen, Duong Nguyen Nguyen, Mai Khanh Pham
Format: Article
Language:English
Published: SciCell s.r.o. 2019-09-01
Series:Acta Metallurgica Slovaca
Subjects:
Online Access:https://journals.scicell.org/index.php/AMS/article/view/124
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author Duong Nam Nguyen
Duong Nguyen Nguyen
Mai Khanh Pham
author_facet Duong Nam Nguyen
Duong Nguyen Nguyen
Mai Khanh Pham
author_sort Duong Nam Nguyen
collection DOAJ
description In this paper, the influence of rare earth (RE) on the microstructure and mechanical properties of austenitic high manganese steel (HMnS) Mn15Cr2V were investigated. The results showed that the microstructure, hardness and impact strength of RE modification sample is finer and better than non-modified sample. Under the effect of impact load, the hardness and the depth of the work-hardening layer of the modified steel was higher than that of the non-modified steel, thereby, the value of microhardness in the surface of the modified sample was 420 HV while it was only 395 HV in the non-modified sample. The value of the impact strength of the modified sample was up to 132 J/cm2 compared to the non-modified sample is only 115 J/cm2. Moreover, after impact load, the austenite nanoparticles had been found out on the surface of this steel, this is the cause of the increasing of mechanical properties in this steel.
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spelling doaj.art-985afbdf2f1f418ab99157584d9b49b02022-12-22T02:47:03ZengSciCell s.r.o.Acta Metallurgica Slovaca1335-15321338-11562019-09-0125310.12776/ams.v25i3.1309INFLUENCE OF RARE-EARTH ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HIGH MANGANESE STEEL UNDER IMPACT LOADDuong Nam Nguyen0Duong Nguyen Nguyen1Mai Khanh Pham2School of Mechanical Engineering, Viet Nam Maritime UniversityJapan Advanced Institute of Science and TechnologySchool of Materials Science and Engineering, Hanoi University of Science and TechnologyIn this paper, the influence of rare earth (RE) on the microstructure and mechanical properties of austenitic high manganese steel (HMnS) Mn15Cr2V were investigated. The results showed that the microstructure, hardness and impact strength of RE modification sample is finer and better than non-modified sample. Under the effect of impact load, the hardness and the depth of the work-hardening layer of the modified steel was higher than that of the non-modified steel, thereby, the value of microhardness in the surface of the modified sample was 420 HV while it was only 395 HV in the non-modified sample. The value of the impact strength of the modified sample was up to 132 J/cm2 compared to the non-modified sample is only 115 J/cm2. Moreover, after impact load, the austenite nanoparticles had been found out on the surface of this steel, this is the cause of the increasing of mechanical properties in this steel.https://journals.scicell.org/index.php/AMS/article/view/124austenite nanoparticlesrare earthgrain sizesubzero temperature
spellingShingle Duong Nam Nguyen
Duong Nguyen Nguyen
Mai Khanh Pham
INFLUENCE OF RARE-EARTH ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HIGH MANGANESE STEEL UNDER IMPACT LOAD
Acta Metallurgica Slovaca
austenite nanoparticles
rare earth
grain size
subzero temperature
title INFLUENCE OF RARE-EARTH ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HIGH MANGANESE STEEL UNDER IMPACT LOAD
title_full INFLUENCE OF RARE-EARTH ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HIGH MANGANESE STEEL UNDER IMPACT LOAD
title_fullStr INFLUENCE OF RARE-EARTH ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HIGH MANGANESE STEEL UNDER IMPACT LOAD
title_full_unstemmed INFLUENCE OF RARE-EARTH ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HIGH MANGANESE STEEL UNDER IMPACT LOAD
title_short INFLUENCE OF RARE-EARTH ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF HIGH MANGANESE STEEL UNDER IMPACT LOAD
title_sort influence of rare earth on the microstructure and mechanical properties of high manganese steel under impact load
topic austenite nanoparticles
rare earth
grain size
subzero temperature
url https://journals.scicell.org/index.php/AMS/article/view/124
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