1. N. MORI, H. HOMMA, S. OKITA, and M. WAICABAYASHI: ‘Mechanism of notch toughness improvement in Ti—B bearing weld metals’, IIW Document IX-1196-81, International Institute of Welding, 1981.
2. V. ITO and M. NAKANISHI: ‘Study on Charpy impact properties of weld metal with submerged arc welding’, IIW Document XII-113-75, International Institute of Welding, 1975.
3. N. MORI, H. HOMMA, S. OKITA, and K. ASAMO: ‘The behaviour of B and N in notch toughness improvement of Ti—B bearing weld metals’, IIW Document IX-1158-80, International Institute of Welding, 1980.