|About this Abstract
||Materials Science & Technology 2012
||Steel Product Metallurgy and Applications
||The Study of Improvement of Toughness for High-Strength Steel Straps
||K.C. Yang, J.F. Tu, T.R. Chen
|On-Site Speaker (Planned)
In order to study the relationship between the toughness and microstructure, the method of V-notch tensile test was applied to the traditional high-strength steel strap and a new one. The new steel strap has higher toughness and capacity of resisting higher local strain and fractured toughness. It is deduced that the different heating treatment causes the new steel strap to have recrystallized microstructure, as well as the traditional steel with the recovered microstructure. The new steel strap with equi-axed grains has higher capability of resisting propagation of cracks along grain boundaries and results in ductile fracture. Comparatively, the traditional steel strap with flat-shape grains produces some brittle microstructure to cause lower toughness. After trying out the new steel strap, there is no new steel strap breaking. Hence, it improves the cost down as well as industrial safety and health.
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