A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-yield-strength ferritic steel for energy dissipation and shock absorption of civil building structure and application of low-yield-strength ferritic steel
The invention relates to low-yield-strength ferrite steel for energy dissipation and shock absorption of civil building structures and application of the low-yield-strength ferrite steel, and the low-yield-strength ferrite steel comprises the following main chemical components in percentage by mass: more than or equal to 0.05% and less than or equal to 0.24% of C, less than or equal to 1.5% of Mn, less than or equal to 0.6% of Si, less than or equal to 0.12% of P, less than or equal to 0.03% of S, less than or equal to 0.03% of N and the balance of Fe and inevitable impurity elements, and the mass percentage content of the Si element also needs to meet the condition that Si is greater than 0.3%. The microstructure of the low-yield-strength ferrite steel is ferrite and carbides with the volume content not larger than 5%, the average size of granular carbides in the carbides is not larger than 2 micrometers, and the volume ratio of the granular carbides in all the carbides is not smaller than 60%. According to the low-yield-strength ferrite steel, the yield strength is smaller than or equal to 300 MPa, the tensile strength is smaller than or equal to 500 MPa, and the percentage elongation after fracture is larger than or equal to 36%. The low-yield-strength ferritic steel is used for manufacturing a high-ductility buckling-restrained energy dissipation support and a partially fusible double-order energy dissipation buckling-restrained energy dissipation support.
本发明涉及一种土木建筑结构消能减震用低屈服强度铁素体钢及其应用，其主要化学成分的质量百分数为：0.05％≤C≤0.24％，Mn≤1.5％，Si≤0.6％，P≤0.12％，S≤0.03％，N≤0.03％，其余为Fe和不可避免的杂质元素，其中，当C元素的质量百分数为C≤0.16％时，Si元素的质量百分含量还需要满足Si＞0.3％。所述低屈服强度铁素体钢的微观组织结构为铁素体和体积含量不超过5％的碳化物，所述碳化物中颗粒状碳化物的平均尺寸不大于2μm，并且颗粒状碳化物在所有碳化物中的体积占比不小于60％。所述低屈服强度铁素体钢的屈服强度≤300MPa、抗拉强度≤500MPa、断后伸长率≥36％。所述低屈服强度铁素体钢用于制造高延性防屈曲耗能支撑和部分可熔断双阶耗能防屈曲耗能支撑。
Low-yield-strength ferritic steel for energy dissipation and shock absorption of civil building structure and application of low-yield-strength ferritic steel
The invention relates to low-yield-strength ferrite steel for energy dissipation and shock absorption of civil building structures and application of the low-yield-strength ferrite steel, and the low-yield-strength ferrite steel comprises the following main chemical components in percentage by mass: more than or equal to 0.05% and less than or equal to 0.24% of C, less than or equal to 1.5% of Mn, less than or equal to 0.6% of Si, less than or equal to 0.12% of P, less than or equal to 0.03% of S, less than or equal to 0.03% of N and the balance of Fe and inevitable impurity elements, and the mass percentage content of the Si element also needs to meet the condition that Si is greater than 0.3%. The microstructure of the low-yield-strength ferrite steel is ferrite and carbides with the volume content not larger than 5%, the average size of granular carbides in the carbides is not larger than 2 micrometers, and the volume ratio of the granular carbides in all the carbides is not smaller than 60%. According to the low-yield-strength ferrite steel, the yield strength is smaller than or equal to 300 MPa, the tensile strength is smaller than or equal to 500 MPa, and the percentage elongation after fracture is larger than or equal to 36%. The low-yield-strength ferritic steel is used for manufacturing a high-ductility buckling-restrained energy dissipation support and a partially fusible double-order energy dissipation buckling-restrained energy dissipation support.
本发明涉及一种土木建筑结构消能减震用低屈服强度铁素体钢及其应用，其主要化学成分的质量百分数为：0.05％≤C≤0.24％，Mn≤1.5％，Si≤0.6％，P≤0.12％，S≤0.03％，N≤0.03％，其余为Fe和不可避免的杂质元素，其中，当C元素的质量百分数为C≤0.16％时，Si元素的质量百分含量还需要满足Si＞0.3％。所述低屈服强度铁素体钢的微观组织结构为铁素体和体积含量不超过5％的碳化物，所述碳化物中颗粒状碳化物的平均尺寸不大于2μm，并且颗粒状碳化物在所有碳化物中的体积占比不小于60％。所述低屈服强度铁素体钢的屈服强度≤300MPa、抗拉强度≤500MPa、断后伸长率≥36％。所述低屈服强度铁素体钢用于制造高延性防屈曲耗能支撑和部分可熔断双阶耗能防屈曲耗能支撑。
Low-yield-strength ferritic steel for energy dissipation and shock absorption of civil building structure and application of low-yield-strength ferritic steel
一种土木建筑结构消能减震用低屈服强度铁素体钢及其应用
YANG QI (author) / ZHU MINGWAN (author)
2024-09-03
Patent
Electronic Resource
Chinese
Hysteresis, yield, and energy dissipation during thermo-mechanical fatigue of a ferritic steel
| British Library Online Contents | 2004
Computer simulation of the yield strength evolution in Cu-precipitation strengthened ferritic steel
| British Library Online Contents | 2010
| British Library Online Contents | 2018
| British Library Online Contents | 2018
Master Curve of High-Strength Ferritic Steel S960-QC
| British Library Online Contents | 2014