Projects per year
Abstract
Microstructure in the weld line (WL) zone produced by inertial friction welding has been studied for a series of RR1000-RR1000 welds using transmission electron and scanning electron microscopy. A fully recrystallised fine grain structure was found to form throughout the WL zone, characterized by straight and smooth grain boundaries, high energy status and modified grain boundary chemistry due to very fast cooling after welding. Very fine gamma' particles with unimodal size distribution were reprecipitated in the WL zone. The fine gamma' particles are spherical in shape, high in number density and characterized by an imbalanced chemistry, containing less Al, Ti, Ni, Ta gamma'-forming elements but more Cr, Co, Mo gamma-forming elements than all types of parent gamma' particles. As a result, a hard and strong WL zone was produced by the inertial friction welding. (C) 2011 Elsevier BM. All rights reserved.
Original language | English |
---|---|
Pages (from-to) | 1927-1936 |
Number of pages | 10 |
Journal | Journal of Materials Processing Technology |
Volume | 211 |
Issue number | 12 |
DOIs | |
Publication status | Published - 1 Dec 2011 |
Keywords
- Friction welding
- Nickel based superalloys
- Hardening
- Electron microscopy
Fingerprint
Dive into the research topics of 'Electron microscopy characterization of the weld line zones of an inertia friction welded superalloy'. Together they form a unique fingerprint.Projects
- 1 Finished
-
Structural Metallic Systems For Advanced Gas Turbine Applications
Bowen, P., Chiu, Y. & Reed, R.
Engineering & Physical Science Research Council
1/10/09 → 30/09/14
Project: Research Councils