Thermally-Induced Crack Evaluation in H13 Tool Steel

This study reported the effect of thermal wear on cylindrical tool steel (AISI H13) under aluminum die-casting conditions. The AISIH13 steels were immersed in the molten aluminum alloy at 700 �C before water-quenching at room temperature. The process involved an alternating heating and cooling of...

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Main Authors:	Abdulhadi, Hassan Abdulrssoul, S. N., Aqida, Izwan, Ismail, M., Ishak, Mohammed, Ghusoon R.
Format:	Article
Language:	English
Published:	MDPI AG 2017
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/19789/ http://umpir.ump.edu.my/id/eprint/19789/ http://umpir.ump.edu.my/id/eprint/19789/ http://umpir.ump.edu.my/id/eprint/19789/1/Thermally-Induced%20Crack%20Evaluation%20in%20H13%20Tool%20Steel_full%20paper.pdf

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recordtype	eprints
spelling	ump-197892018-01-18T07:43:02Z http://umpir.ump.edu.my/id/eprint/19789/ Thermally-Induced Crack Evaluation in H13 Tool Steel Abdulhadi, Hassan Abdulrssoul S. N., Aqida Izwan, Ismail M., Ishak Mohammed, Ghusoon R. TJ Mechanical engineering and machinery This study reported the effect of thermal wear on cylindrical tool steel (AISI H13) under aluminum die-casting conditions. The AISIH13 steels were immersed in the molten aluminum alloy at 700 �C before water-quenching at room temperature. The process involved an alternating heating and cooling of each sample for a period of 24 s. The design of the immersion test apparatus stylistically simulated aluminum alloy dies casting conditions. The testing phase was performed at 1850, 3000, and 5000 cycles. The samples were subjected to visual inspection after each phase of testing, before being examined for metallographic studies, surface crack measurement, and hardness characteristics. Furthermore, the samples were segmented and examined under optical and Scanning Electron Microscopy (SEM). The areas around the crack zones were additionally examined under Energy Dispersive X-ray Spectroscopy (EDXS). The crack’s maximum length and Vickers hardness profiles were obtained; and from the metallographic study, an increase in the number of cycles during the testing phase resulted in an increase in the surface crack formation; suggesting an increase in the thermal stress at higher cycle numbers. The crack length of Region I (spherically shaped) was about 47 to 127 �m, with a high oxygen content that was analyzed within 140 �m from the surface of the sample. At 700 �C, there is a formation of aluminum oxides, which was in contact with the surface of the H13 sample. These stresses propagate the thermal wear crack length into the tool material of spherically shaped Region I and cylindrically shape Region II, while hardness parameters presented a different observation. The crack length of Region I was about 32% higher than the crack length of Region II. MDPI AG 2017-11-06 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/19789/1/Thermally-Induced%20Crack%20Evaluation%20in%20H13%20Tool%20Steel_full%20paper.pdf Abdulhadi, Hassan Abdulrssoul and S. N., Aqida and Izwan, Ismail and M., Ishak and Mohammed, Ghusoon R. (2017) Thermally-Induced Crack Evaluation in H13 Tool Steel. Metals, 7 (11). pp. 475-485. ISSN 2075-4701 http://dx.doi.org/10.3390/met7110475 doi: 10.3390/met7110475
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Abdulhadi, Hassan Abdulrssoul S. N., Aqida Izwan, Ismail M., Ishak Mohammed, Ghusoon R. Thermally-Induced Crack Evaluation in H13 Tool Steel
description	This study reported the effect of thermal wear on cylindrical tool steel (AISI H13) under aluminum die-casting conditions. The AISIH13 steels were immersed in the molten aluminum alloy at 700 �C before water-quenching at room temperature. The process involved an alternating heating and cooling of each sample for a period of 24 s. The design of the immersion test apparatus stylistically simulated aluminum alloy dies casting conditions. The testing phase was performed at 1850, 3000, and 5000 cycles. The samples were subjected to visual inspection after each phase of testing, before being examined for metallographic studies, surface crack measurement, and hardness characteristics. Furthermore, the samples were segmented and examined under optical and Scanning Electron Microscopy (SEM). The areas around the crack zones were additionally examined under Energy Dispersive X-ray Spectroscopy (EDXS). The crack’s maximum length and Vickers hardness profiles were obtained; and from the metallographic study, an increase in the number of cycles during the testing phase resulted in an increase in the surface crack formation; suggesting an increase in the thermal stress at higher cycle numbers. The crack length of Region I (spherically shaped) was about 47 to 127 �m, with a high oxygen content that was analyzed within 140 �m from the surface of the sample. At 700 �C, there is a formation of aluminum oxides, which was in contact with the surface of the H13 sample. These stresses propagate the thermal wear crack length into the tool material of spherically shaped Region I and cylindrically shape Region II, while hardness parameters presented a different observation. The crack length of Region I was about 32% higher than the crack length of Region II.
format	Article
author	Abdulhadi, Hassan Abdulrssoul S. N., Aqida Izwan, Ismail M., Ishak Mohammed, Ghusoon R.
author_facet	Abdulhadi, Hassan Abdulrssoul S. N., Aqida Izwan, Ismail M., Ishak Mohammed, Ghusoon R.
author_sort	Abdulhadi, Hassan Abdulrssoul
title	Thermally-Induced Crack Evaluation in H13 Tool Steel
title_short	Thermally-Induced Crack Evaluation in H13 Tool Steel
title_full	Thermally-Induced Crack Evaluation in H13 Tool Steel
title_fullStr	Thermally-Induced Crack Evaluation in H13 Tool Steel
title_full_unstemmed	Thermally-Induced Crack Evaluation in H13 Tool Steel
title_sort	thermally-induced crack evaluation in h13 tool steel
publisher	MDPI AG
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/19789/ http://umpir.ump.edu.my/id/eprint/19789/ http://umpir.ump.edu.my/id/eprint/19789/ http://umpir.ump.edu.my/id/eprint/19789/1/Thermally-Induced%20Crack%20Evaluation%20in%20H13%20Tool%20Steel_full%20paper.pdf
first_indexed	2023-09-18T22:28:23Z
last_indexed	2023-09-18T22:28:23Z
_version_	1777416120114872320

Thermally-Induced Crack Evaluation in H13 Tool Steel

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