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DC Field | Value | Language |
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dc.contributor.author | Subroto, T | - |
dc.contributor.author | Miroux, A | - |
dc.contributor.author | Katgerman, L | - |
dc.contributor.author | Bouffier, L | - |
dc.contributor.author | Josserond, C | - |
dc.contributor.author | Salvo, L | - |
dc.contributor.author | Suéry, M | - |
dc.contributor.author | Eskin, DG | - |
dc.contributor.author | Katgerman, L | - |
dc.date.accessioned | 2014-12-11T12:20:42Z | - |
dc.date.available | 2014-12-11T12:20:42Z | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | Metallurgical and Materials Transactions A, 45(6): 2855 - 2862, (June 2014) | en_US |
dc.identifier.issn | 1073-5623 | - |
dc.identifier.uri | http://link.springer.com/article/10.1007%2Fs11661-014-2220-6 | - |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/9484 | - |
dc.description.abstract | Aluminum alloy 7050 is known for its superior mechanical properties, and thus finds its application in aerospace industry. Vertical direct-chill (DC) casting process is typically employed for producing such an alloy. Despite its advantages, AA7050 is considered as a "hard-to-cast" alloy because of its propensity to cold cracking. This type of cracks occurs catastrophically and is difficult to predict. Previous research suggested that such a crack could be initiated by undeveloped hot tears (microscopic hot tear) formed during the DC casting process if they reach a certain critical size. However, validation of such a hypothesis has not been done yet. Therefore, a method to produce a hot tear with a controlled size is needed as part of the verification studies. In the current study, we demonstrate a method that has a potential to control the size of the created hot tear in a small-scale solidification process. We found that by changing two variables, cooling rate and displacement compensation rate, the size of the hot tear during solidification can be modified in a controlled way. An X-ray microtomography characterization technique is utilized to quantify the created hot tear. We suggest that feeding and strain rate during DC casting are more important compared with the exerted force on the sample for the formation of a hot tear. In addition, we show that there are four different domains of hot-tear development in the explored experimental window-compression, microscopic hot tear, macroscopic hot tear, and failure. The samples produced in the current study will be used for subsequent experiments that simulate cold-cracking conditions to confirm the earlier proposed model. | en_US |
dc.description.sponsorship | This research was carried out within the Materials innovation institute (www.m2i.nl) research framework, project no. M42.5.09340. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Springer US | en_US |
dc.subject | Hot tear | en_US |
dc.subject | Small-scale solidification process | en_US |
dc.subject | X-ray microtomography | en_US |
dc.title | Formation of hot tear under controlled solidification conditions | en_US |
dc.type | Article | en_US |
dc.identifier.doi | http://dx.doi.org/10.1007/s11661-014-2220-6 | - |
pubs.organisational-data | /Brunel | - |
pubs.organisational-data | /Brunel/Brunel Staff by College/Department/Division | - |
pubs.organisational-data | /Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences | - |
pubs.organisational-data | /Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences/Dept of Mechanical, Aerospace and Civil Engineering | - |
pubs.organisational-data | /Brunel/Brunel Staff by College/Department/Division/College of Engineering, Design and Physical Sciences/Dept of Mechanical, Aerospace and Civil Engineering/Mechanical and Aerospace Engineering | - |
pubs.organisational-data | /Brunel/Brunel Staff by Institute/Theme | - |
pubs.organisational-data | /Brunel/Brunel Staff by Institute/Theme/Institute of Materials and Manufacturing | - |
pubs.organisational-data | /Brunel/Brunel Staff by Institute/Theme/Institute of Materials and Manufacturing/Liquid Metal Engineering | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups/Brunel Business School - URCs and Groups | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups/Brunel Business School - URCs and Groups/Centre for Research into Entrepreneurship, International Business and Innovation in Emerging Markets | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups/School of Health Sciences and Social Care - URCs and Groups | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups/School of Health Sciences and Social Care - URCs and Groups/Brunel Institute for Ageing Studies | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups/School of Health Sciences and Social Care - URCs and Groups/Brunel Institute of Cancer Genetics and Pharmacogenomics | - |
pubs.organisational-data | /Brunel/University Research Centres and Groups/School of Health Sciences and Social Care - URCs and Groups/Centre for Systems and Synthetic Biology | - |
Appears in Collections: | Brunel Centre for Advanced Solidification Technology (BCAST) |
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Fulltext.pdf | 1.64 MB | Adobe PDF | View/Open |
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