Effect of Ultrasonic Melt Treatment on Solidification Structure of Fe-36Ni Invar Alloy

The effect of ultrasonic treatment on the solidification structure of Fe-36Ni invar alloy was investigated. The experiment results showed that the ultrasonic treatment before its solidification had no significant effect on the solidification structure. However, when ultrasonic was inputted into the...

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Main Authors: Peng Hong-bing, Chen Wei-qing, Yu Yan-chong, Zheng Hong-guang
Format: Article
Language:English
Published: De Gruyter 2013-10-01
Series:High Temperature Materials and Processes
Subjects:
Online Access:https://doi.org/10.1515/htmp-2012-0159
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author Peng Hong-bing
Chen Wei-qing
Yu Yan-chong
Zheng Hong-guang
author_facet Peng Hong-bing
Chen Wei-qing
Yu Yan-chong
Zheng Hong-guang
author_sort Peng Hong-bing
collection DOAJ
description The effect of ultrasonic treatment on the solidification structure of Fe-36Ni invar alloy was investigated. The experiment results showed that the ultrasonic treatment before its solidification had no significant effect on the solidification structure. However, when ultrasonic was inputted into the molten alloy during its solidification process, the primary dendrites were broken up into lots of fragments and solidification structure was refined significantly. When ultrasonic treatment was applied in the melt doped with yttrium before its solidification, ultrasonic cavitation could break up precipitates into many small ones, which could refine its solidification structure as nucleation cores. In samples containing yttrium treated by ultrasonic at 1753 K, the number of the precipitates was 623/mm2 and its average size was 2.18 µm; while at 1803 K, they were 604/mm2 and 2.34 µm respectively. The ultrasonic cavitation had a similar effect at two different temperatures. The solidification structure refined greatly at 1753 K was due to its low pouring temperature.
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spelling doaj.art-e11a669c4de643868cb8118a1b1ccfeb2022-12-21T21:28:11ZengDe GruyterHigh Temperature Materials and Processes0334-64552191-03242013-10-0132545946510.1515/htmp-2012-0159Effect of Ultrasonic Melt Treatment on Solidification Structure of Fe-36Ni Invar AlloyPeng Hong-bing0Chen Wei-qing1Yu Yan-chong2Zheng Hong-guang3State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaState Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, ChinaTechnology Institute of Metallurgical, Baosteel Institute, Shanghai 201900, ChinaThe effect of ultrasonic treatment on the solidification structure of Fe-36Ni invar alloy was investigated. The experiment results showed that the ultrasonic treatment before its solidification had no significant effect on the solidification structure. However, when ultrasonic was inputted into the molten alloy during its solidification process, the primary dendrites were broken up into lots of fragments and solidification structure was refined significantly. When ultrasonic treatment was applied in the melt doped with yttrium before its solidification, ultrasonic cavitation could break up precipitates into many small ones, which could refine its solidification structure as nucleation cores. In samples containing yttrium treated by ultrasonic at 1753 K, the number of the precipitates was 623/mm2 and its average size was 2.18 µm; while at 1803 K, they were 604/mm2 and 2.34 µm respectively. The ultrasonic cavitation had a similar effect at two different temperatures. The solidification structure refined greatly at 1753 K was due to its low pouring temperature.https://doi.org/10.1515/htmp-2012-0159ultrasonicfe-36nisolidification structureyttrium
spellingShingle Peng Hong-bing
Chen Wei-qing
Yu Yan-chong
Zheng Hong-guang
Effect of Ultrasonic Melt Treatment on Solidification Structure of Fe-36Ni Invar Alloy
High Temperature Materials and Processes
ultrasonic
fe-36ni
solidification structure
yttrium
title Effect of Ultrasonic Melt Treatment on Solidification Structure of Fe-36Ni Invar Alloy
title_full Effect of Ultrasonic Melt Treatment on Solidification Structure of Fe-36Ni Invar Alloy
title_fullStr Effect of Ultrasonic Melt Treatment on Solidification Structure of Fe-36Ni Invar Alloy
title_full_unstemmed Effect of Ultrasonic Melt Treatment on Solidification Structure of Fe-36Ni Invar Alloy
title_short Effect of Ultrasonic Melt Treatment on Solidification Structure of Fe-36Ni Invar Alloy
title_sort effect of ultrasonic melt treatment on solidification structure of fe 36ni invar alloy
topic ultrasonic
fe-36ni
solidification structure
yttrium
url https://doi.org/10.1515/htmp-2012-0159
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AT chenweiqing effectofultrasonicmelttreatmentonsolidificationstructureoffe36niinvaralloy
AT yuyanchong effectofultrasonicmelttreatmentonsolidificationstructureoffe36niinvaralloy
AT zhenghongguang effectofultrasonicmelttreatmentonsolidificationstructureoffe36niinvaralloy