極低炭素溶接金属におよぼす合金元素の影響(第 1 報)

概要

論文の詳細を見る
It is well known that carbon in steel increases its strength but decreases its ductility and toughness. Recent welding technology required to get higher strength and toughness of larger weld metal. It is not always easy to realize these objects The purpose of this research is to know systematically the effects of elements of simultabeouly on the strength and toughness of weld metal. Especially the strength and toughness of extremely low carbon weld metal arenvestigated in order to find a proper electrode steel wire, which gives higher toughness and enough strength. Small casted specimens were used for experiment instead of submerged arc weld metal. The results obtained as follows : 1. Extremely low carbon cast steel containing 0.01% C, 0.35% Si and 1.5% Mn gave excellent toughness and the same strength as mild steel. 2. 0.04% C cast steel gave the lowest transition temperature, compared as the lower and higher carbon cast steels. 3. The toughness of cast steel decreased steeply over 0.08% C or 2% Mn content.
社団法人溶接学会の論文
1971-10-25