On the role of eutectics during recrystallization in a single crystal nickel-base superalloy - CMSX-4

Wang L, Pyczak F, Zhang J, Singer R (2009)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2009

Journal

International Journal of Materials Research Carl Hanser Verlag

Book Volume: 100

Pages Range: 1046-1051

Journal Issue: 8

DOI: 10.3139/146.110155

Abstract

The role of eutectics in recrystallization in a single crystal nickel-base superalloy - CMSX-4 - was studied by electron backscatter diffraction and electron probe micro-analysis techniques. It was shown that eutectics can initiate recrystallization by a particle stimulated nucleation mechanism which operates in interdendritic regions. During grain growth in the course of recrystallization, eutectics were observed to inhibit the motion of the advancing recrystallization grain boundary. Alternatively, a recrystallization grain boundary can migrate through eutectics by forming a large γ′ phase particle behind the advancing front, either with the same crystal orientation as the eutectic the boundary advances into or, in some cases, with completely new orientations, i. e. neither the same as the eutectic it grows into nor the same as the recrystallized grains surrounding it. © Carl Hanser Verlag GmbH & Co. KG.

Authors with CRIS profile

Robert Singer Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)

Involved external institutions

Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH (HZG) DE Germany (DE) Institute of Metal Research Chinese Academy of Sciences (IMR CAS) CN China (CN)

How to cite

APA:

Wang, L., Pyczak, F., Zhang, J., & Singer, R. (2009). On the role of eutectics during recrystallization in a single crystal nickel-base superalloy - CMSX-4. International Journal of Materials Research, 100(8), 1046-1051. https://dx.doi.org/10.3139/146.110155

MLA:

Wang, Li, et al. "On the role of eutectics during recrystallization in a single crystal nickel-base superalloy - CMSX-4." International Journal of Materials Research 100.8 (2009): 1046-1051.

BibTeX: Download