Effect of Vanadium on Delayed Fracture Resistance of High Strength Pre-Stressed Concrete Steel Bar

Release time:2024-08-09  Hits:

• Affiliation of Author(s):冶金工程学院
• Journal:Trans Tech Publications
• Key Words:中文关键字：钒；高强钢；耐延迟断裂；PC钢，英文关键字：Vanadium; High strength steel; Delayed Fracture Re
• Abstract:The delayed fracture resistance of pre-stressed concrete (PC) steel bar with different vanadium contents was investigated by using tensile sustained load delayed fracture test and optical microscope. The experimental results show that delayed fracture resistance of vanadium containing steels is higher than that of conventional steel 30MnSi at the same strength level and it increases with the increase of vanadium content. The improvement is resulted mainly from the irreversible traps for hydrogen and the prior austenite grain size refinement by vanadium carbide particles.
• Note:肖桂枝
• First Author:pangyuhua,Jane,xiaoguizhi
• Indexed by:Journal paper
• Volume:卷：634-638
• Issue:期：
• Page Number:页：4
• Translation or Not:no
• Date of Publication:2012-12-01