1. Honeycombe RWK, Bhadeshia HKDH: ‘Steels: microstructure and properties’, 2nd edn, 234; 1995, London, Edward Arnold.
2. Patchett BM, Bringas JE, Thomas RD: ‘The metals blue book: welding filler metals’, 2nd edn, 70; 1998, Edmonton, CASTI Publishing Inc and American Welding Society.
3. Changes in toughness at low oxygen concentrations in steel weld metals