Imperial College London
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Dr T Ben Britton

Faculty of Engineering, Department of Materials

Visiting Reader
 
 
 
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Contact

 

+44 (0)20 7594 2634b.britton Website

 
 
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Location

 

B301Bessemer BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{McAuliffe:2021:10.1007/s11661-021-06156-1,
author = {McAuliffe, TP and Bantounas, I and Reynolds, LR and Foden, A and Hardy, MC and Britton, TB and Dye, D},
doi = {10.1007/s11661-021-06156-1},
journal = {METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE},
pages = {1649--1664},
title = {Quantitative precipitate classification and grain boundary property control in Co/Ni-base superalloys},
url = {http://dx.doi.org/10.1007/s11661-021-06156-1},
volume = {52},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A correlative approach is employed to simultaneously assess structure and chemistry of (carbide and boride) precipitates in a set of novel Co/Ni-base superalloys. Structure is derived from electron backscatter diffraction (EBSD) with pattern template matching, and chemistry obtained with energy dispersive X-ray spectroscopy (EDS). It is found that the principal carbide in these alloys is Mo and W rich with the M6C structure. An M2B boride also exhibiting Mo and W segregation is observed at B levels above approximately 0.085 at. pct. These phases are challenging to distinguish in an SEM with chemical information (EDS or backscatter Z-contrast) alone, without the structural information provided by EBSD. Only correlative chemical and structural fingerprinting is necessary and sufficient to fully define a phase. The identified phases are dissimilar to those predicted using ThermoCalc. We additionally perform an assessment of the grain boundary serratability in these alloys, and observe that significant amplitude is only obtained in the absence of pinning intergranular precipitates.
AU  - McAuliffe,TP
AU  - Bantounas,I
AU  - Reynolds,LR
AU  - Foden,A
AU  - Hardy,MC
AU  - Britton,TB
AU  - Dye,D
DO  - 10.1007/s11661-021-06156-1
EP  - 1664
PY  - 2021///
SN  - 1073-5623
SP  - 1649
TI  - Quantitative precipitate classification and grain boundary property control in Co/Ni-base superalloys
T2  - METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
UR  - http://dx.doi.org/10.1007/s11661-021-06156-1
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000625910600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://link.springer.com/article/10.1007%2Fs11661-021-06156-1
UR  - http://hdl.handle.net/10044/1/87754
VL  - 52
ER  -
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