onr:"swepub:oai:DiVA.org:kth-309959"
Search: onr:"swepub:oai:DiVA.org:kth-309959" > Influence of direct...
- 1 of 1
- Previous record
- Next record
- To hitlist
Influence of direct chill casting process variables on surface quality of aluminum alloy sheet ingots
-
- El-Bealy, Mostafa Omar (author)
- KTH,Department of Metals Processing and Technology, ASU, Egypt; CTU, Germany; Massachusetts Institute of Technology MIT, Materials Processing Center MPC, University Materials Council, Cambridge, MA, United States,Materialens processteknologi
- (creator_code:org_t)
- Cham : John Wiley & Sons, 2012
- 2012
- English.
- In: Proceedings TMS Light Metals. - Cham : John Wiley & Sons. ; , s. 1107-1112, s. 1107-1112
- Conference paper (peer-reviewed)
Abstract
Subject headings
Close
- Surface defects formation and their effects on the surface quality of aluminum direct-chill cast sheet ingots have been investigated by metallographic examinations and mathematical modeling. The influence of process variables such as alloy composition, casting speed and lubricant on the surface defects especially extruded surface segregation layer has been determined. The metallographic study for collected samples of plant trials involved visual, micro-examinations and macrosegregation analysis. A 2-D mathematical model has been developed to characterize the thermal, solidification, interdendritic strain and macrosegregation distributions. Also, the model contained a new approach to evaluate qualitatively the macrosegregation formed during dendritic solidification. The model predications were compared to measurements from collected samples to verify the model, where a good agreement was obtained. The model predications illustrate that all the process variables tested have an observed effect on the surface quality by different levels. The mathematical analysis of strain fields as well as metallographic study has been used to explain and discuss the effects of different process variables on the surface quality.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- Aluminum
- Exhibitions
- Ingots
- Mathematical models
- Metallography
- Solidification
- Surface segregation
- Alloy compositions
- Aluminum alloy sheet
- Casting speed
- Defects formation
- Dendritic solidification
- Direct chill casting
- Extruded surface segregation layer
- Macrosegregations
- Mathematical analysis
- Mathematical modeling
- Metallographic examination
- Plant trials
- Process Variables
- Sheet ingots
- Strain fields
- Surface properties
- Surface quality
Publication and Content Type
- ref (subject category)
- kon (subject category)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- El-Bealy, Mostaf ...
- About the subject
-
- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Materials Engine ...
- and Metallurgy and M ...
- Articles in the publication
- Proceedings TMS ...
- By the university
- Royal Institute of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
