Nucleation at hardness indentations in cold rolled Al

C.L. Xu, Yubin Zhang, G.L. Wu, Q. Liu, Dorte Juul Jensen

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Abstract

Nucleation of recrystallization near hardness indentations has been investigated in slightly cold rolled high purity aluminium. Samples were cold rolled to 12% and 20% reductions in thickness and indentations were done with two different loads (500 g and 2000 g). The samples were annealed at 300 °C for 1 h and nuclei were identified. It is found that the indentations are preferential nucleation sites. With EBSD maps around indentation tips, the orientation relationship between nuclei and matrix is analyzed. Finally, effects of rolling reduction and indentation load on local misorientations and stored energy distributions and thus on nucleation are discussed.
Original languageEnglish
Article number012054
JournalI O P Conference Series: Materials Science and Engineering
Volume89
Number of pages6
ISSN1757-8981
DOIs
Publication statusPublished - 2015
Event36th Risø International Symposium on Materials Science - DTU Risø Campus, Roskilde, Denmark
Duration: 7 Sep 201511 Sep 2015
Conference number: 36

Conference

Conference36th Risø International Symposium on Materials Science
Number36
LocationDTU Risø Campus
CountryDenmark
CityRoskilde
Period07/09/201511/09/2015

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