Hot tearing behaviour of binary Mg-1Al alloy using a contraction force measuring method

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Hot tearing behaviour of binary Mg-1Al alloy using a contraction force measuring method. / Zhen, Z. S.; Hort, N.; Huang, Y. D. et al.
In: International Journal of Cast Metals Research, Vol. 22, No. 1-4, 08.2009, p. 331-334.

Research output: Journal contributionsJournal articlesResearchpeer-review

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Zhen ZS, Hort N, Huang YD, Utke O, Petri N, Kainer KU. Hot tearing behaviour of binary Mg-1Al alloy using a contraction force measuring method. International Journal of Cast Metals Research. 2009 Aug;22(1-4):331-334. doi: 10.1179/136404609X368145

Bibtex

@article{1ddd27c0b0de409a804a830482619747,
title = "Hot tearing behaviour of binary Mg-1Al alloy using a contraction force measuring method",
abstract = "Hot tearing (or hot cracking) is recognised in the foundry industry as a serious defect. Although it has been investigated for decades, understanding still stands at a qualitative level. In this work, investigations on hot tearing in the binary Mg-1Al (wt-%) alloy have been conducted, using a contraction stress measuring method which shows evidence of good repeatability. The results show that increasing mould temperature decreases hot tearing susceptibility for Mg-1Al due to a decreased cooling rate. The recorded contraction force curves also show that hot cracks initiate under all investigated mould temperatures; however, the crack propagation behaves differently. At lower mould temperatures, the crack propagates very fast, while at higher mould temperatures it propagates slowly. This indicates that a lower cooling rate allows a better chance for the retained liquid to refill the crack. Consequently this leads to partial or complete interruption of crack propagation.",
keywords = "Castability, Crack propagation, Hot tearing, Magnesium alloys, Engineering",
author = "Zhen, {Z. S.} and N. Hort and Huang, {Y. D.} and O. Utke and N. Petri and Kainer, {K. U.}",
year = "2009",
month = aug,
doi = "10.1179/136404609X368145",
language = "English",
volume = "22",
pages = "331--334",
journal = "International Journal of Cast Metals Research",
issn = "1364-0461",
publisher = "Routledge Taylor & Francis Group",
number = "1-4",

}

RIS

TY - JOUR

T1 - Hot tearing behaviour of binary Mg-1Al alloy using a contraction force measuring method

AU - Zhen, Z. S.

AU - Hort, N.

AU - Huang, Y. D.

AU - Utke, O.

AU - Petri, N.

AU - Kainer, K. U.

PY - 2009/8

Y1 - 2009/8

N2 - Hot tearing (or hot cracking) is recognised in the foundry industry as a serious defect. Although it has been investigated for decades, understanding still stands at a qualitative level. In this work, investigations on hot tearing in the binary Mg-1Al (wt-%) alloy have been conducted, using a contraction stress measuring method which shows evidence of good repeatability. The results show that increasing mould temperature decreases hot tearing susceptibility for Mg-1Al due to a decreased cooling rate. The recorded contraction force curves also show that hot cracks initiate under all investigated mould temperatures; however, the crack propagation behaves differently. At lower mould temperatures, the crack propagates very fast, while at higher mould temperatures it propagates slowly. This indicates that a lower cooling rate allows a better chance for the retained liquid to refill the crack. Consequently this leads to partial or complete interruption of crack propagation.

AB - Hot tearing (or hot cracking) is recognised in the foundry industry as a serious defect. Although it has been investigated for decades, understanding still stands at a qualitative level. In this work, investigations on hot tearing in the binary Mg-1Al (wt-%) alloy have been conducted, using a contraction stress measuring method which shows evidence of good repeatability. The results show that increasing mould temperature decreases hot tearing susceptibility for Mg-1Al due to a decreased cooling rate. The recorded contraction force curves also show that hot cracks initiate under all investigated mould temperatures; however, the crack propagation behaves differently. At lower mould temperatures, the crack propagates very fast, while at higher mould temperatures it propagates slowly. This indicates that a lower cooling rate allows a better chance for the retained liquid to refill the crack. Consequently this leads to partial or complete interruption of crack propagation.

KW - Castability

KW - Crack propagation

KW - Hot tearing

KW - Magnesium alloys

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=70350517955&partnerID=8YFLogxK

U2 - 10.1179/136404609X368145

DO - 10.1179/136404609X368145

M3 - Journal articles

AN - SCOPUS:70350517955

VL - 22

SP - 331

EP - 334

JO - International Journal of Cast Metals Research

JF - International Journal of Cast Metals Research

SN - 1364-0461

IS - 1-4

ER -

DOI