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Damping structure based on anti-fatigue twinning induced plasticity steel and preparation method
The invention discloses a damping structure based on anti-fatigue twinning induced plasticity steel and a preparation method. The damping structure is composed of an upper cone-like structure and a lower cone-like structure, wherein the geometrical shape of the damping structure is hourglass. The damping structure comprises the following components in parts by weight: 0.1-0.8 part of C, 17.0-30.0parts of Mn, 0.8-1.2 parts of Si, less than or equal to 0.008 part of P, less than or equal to 0.005 part of S, 0.3-0.6 part of V, 0.3-0.6 part of Ti, 0.1-0.3 part of Zr, 0.1-0.3 part of Nb, and the balance of Fe. Work hardening capacity and shearing resistance of the twinning induced plasticity steel are improved through an alloy design; through multi-element microalloying and heat treatment, a dispersion strengthening phase is obtained to be pinned and dislocated, so that dislocation performance is reduced, and therefore, yield strength of the alloy is improved; high-density dislocation andcomplex configuration are obtained through medium-temperature forging, and yield strength and sliding resistance of the alloy are further improved; partial recovery and recrystallization grains are generated through medium-temperature heat treatment, the comprehensive mechanical property of the alloy is regulated and controlled, and good low-cycle fatigue performance is obtained. The obtained damping device has obvious advantages in comprehensive mechanical property and bending fatigue property, and has a wide application prospect in railway shock absorption (isolation) structures.
本发明公开了一种基于抗疲劳孪生诱发塑性钢的减震结构及制备方法，由上下两部分类锥形结构组成几何形状为沙漏形的减震结构。减震结构的成分包括C：0.1～0.8；Mn：17.0～30.0；Si：0.8～1.2；P：≤0.008；S：≤0.005；V：0.3～0.6；Ti：0.3～0.6；Zr：0.1～0.3；Nb：0.1～0.3；其余为Fe。通过合金设计提高孪生诱发塑性钢的加工硬化能力和剪切抗力；通过多元微合金化和热处理，获得弥散强化相以钉扎位错，降低位错动性从而提高合金的屈服强度；通过中温锻造获得高密度位错及复杂组态，进一步提高合金的屈服强度和滑移抗力；通过中温热处理产生部分恢复和再结晶晶粒，调控合金的综合力学性能，获得良好的低周疲劳性能。获得的减震装置综合力学性能及弯曲疲劳性能具有明显优势，在铁路减(隔)震结构中有广泛的应用前景。
Damping structure based on anti-fatigue twinning induced plasticity steel and preparation method
The invention discloses a damping structure based on anti-fatigue twinning induced plasticity steel and a preparation method. The damping structure is composed of an upper cone-like structure and a lower cone-like structure, wherein the geometrical shape of the damping structure is hourglass. The damping structure comprises the following components in parts by weight: 0.1-0.8 part of C, 17.0-30.0parts of Mn, 0.8-1.2 parts of Si, less than or equal to 0.008 part of P, less than or equal to 0.005 part of S, 0.3-0.6 part of V, 0.3-0.6 part of Ti, 0.1-0.3 part of Zr, 0.1-0.3 part of Nb, and the balance of Fe. Work hardening capacity and shearing resistance of the twinning induced plasticity steel are improved through an alloy design; through multi-element microalloying and heat treatment, a dispersion strengthening phase is obtained to be pinned and dislocated, so that dislocation performance is reduced, and therefore, yield strength of the alloy is improved; high-density dislocation andcomplex configuration are obtained through medium-temperature forging, and yield strength and sliding resistance of the alloy are further improved; partial recovery and recrystallization grains are generated through medium-temperature heat treatment, the comprehensive mechanical property of the alloy is regulated and controlled, and good low-cycle fatigue performance is obtained. The obtained damping device has obvious advantages in comprehensive mechanical property and bending fatigue property, and has a wide application prospect in railway shock absorption (isolation) structures.
本发明公开了一种基于抗疲劳孪生诱发塑性钢的减震结构及制备方法，由上下两部分类锥形结构组成几何形状为沙漏形的减震结构。减震结构的成分包括C：0.1～0.8；Mn：17.0～30.0；Si：0.8～1.2；P：≤0.008；S：≤0.005；V：0.3～0.6；Ti：0.3～0.6；Zr：0.1～0.3；Nb：0.1～0.3；其余为Fe。通过合金设计提高孪生诱发塑性钢的加工硬化能力和剪切抗力；通过多元微合金化和热处理，获得弥散强化相以钉扎位错，降低位错动性从而提高合金的屈服强度；通过中温锻造获得高密度位错及复杂组态，进一步提高合金的屈服强度和滑移抗力；通过中温热处理产生部分恢复和再结晶晶粒，调控合金的综合力学性能，获得良好的低周疲劳性能。获得的减震装置综合力学性能及弯曲疲劳性能具有明显优势，在铁路减(隔)震结构中有广泛的应用前景。
Damping structure based on anti-fatigue twinning induced plasticity steel and preparation method
一种基于抗疲劳孪生诱发塑性钢的减震结构及制备方法
HAN FUSHENG (Autor:in) / WANG XINGFU (Autor:in) / ZHAO MODI (Autor:in) / GUO YONG (Autor:in) / GAO SHUANGQUAN (Autor:in) / LIANG JUHUA (Autor:in) / SHI ZIMU (Autor:in) / LI ERMAO (Autor:in) / WANG QINGPEI (Autor:in)
12.02.2021
Patent
Elektronische Ressource
Chinesisch
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