HAZ fracture toughness of titanium containing steels
作者:
LauT. W.,
WangG. R.,
NorthT. H.,
期刊:
Materials Science and Technology
(Taylor Available online 1989)
卷期:
Volume 5,
issue 6
页码: 575-583
ISSN:0267-0836
年代: 1989
DOI:10.1179/mst.1989.5.6.575
出版商: Taylor&Francis
数据来源: Taylor
摘要:
AbstractSteels containing various combinations of microalloying elements (Nb, V, and Ti) were welded at heat inputs from 3 to 6 kJ mm−1. It was shown by detailed crack tip opening displacement fracture toughness testing of coarse grained heat affected zone (HAZ) regions in single pass weld deposits that the poorest toughness properties were exhibited by steel containing a combination of Nb, V, and Ti. Steel microalloyed with only titanium had the best HAZ fracture toughness at all heat input levels. Detailed microstructural analysis, grain size measurement, hardness, and precipitation in HAZ regions were evaluated to explain the fracture toughness properties observed.MST/887
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