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Improved toughness properties in the heat‐affected zone of welded joints made from fine‐grained structural steels
Author(s) -
Baumgardt Heinrich,
Straßburger Christian
Publication year - 1985
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.198500706
Subject(s) - toughness , materials science , titanium , heat affected zone , welding , metallurgy , composite material , titanium alloy , alloy
The investigation of the toughness properties in the heat‐affected zone of submerged‐arc welds performed on 20 to 30 mm thick plates made of normalized fine‐grained structural steels with yield strengths of 280 to 480 N/mm 2 established that the notched‐bar impact energy produced in the heat‐affected zone by means of a high heat input ( t 8/5 > 40s) can be improved by alloying with titanium. The titanium‐alloyed steels display toughness properties in the heat affected zone that roughly correspond with the values of the base material, while the heat affected zone of titanium‐free steels, when compared with the base material, displays appreciably inferior notched‐bar impact energy values.