30CrMnSiA建筑结构钢SHPB高温压缩力学性能分析  

High Temperature Compression Mechanical Properties Analysis of 30CrMnSiA Building Structural Steel SHPB

作　　者：邓鹏 Deng Peng(School of Civil and Hydraulic Engineering,Xichang University,Xichang Sichuan 615000,China)

机构地区：[1]西昌学院土木与水利工程学院,四川西昌615000

出　　处：《山西冶金》2024年第8期56-57,60,共3页Shanxi Metallurgy

摘　　要：分离式Hopkinson压杆加载装置(SHPB)高温压缩有助于提高冶金材料的力学性能,被广泛应用于各种建筑结构钢材的冶金成形领域。为了提高建筑用30CrMnSiA结构钢的力学性能,探究了30CrMnSiA的SHPB高温压缩力学性能分析。研究结果表明:当受热温度不断升高时,流动应力降低,下降幅度随温度变化幅值增大而增大,温度敏感性在此过程中较显著;30CrMnSiA结构钢流动应力更容易受到温度软化效应作用的影响,动态屈服强度在温度升至300℃时表现出更为显著的下降趋势,整体为常温的35%。该研究有助于提高建筑冶金棒材的综合力学性能,提高高层建筑的安全性。The high temperature compression of SHPB is helpful to improve the mechanical properties of metallurgical materials,and is widely used in metallurgical forming fields of various steels.In order to improve the mechanical properties of 30CrMnSiA structural steel used in construction,the mechanical properties of 30CrMnSiA under SHPB high temperature compression were studied.The results show that when the heating temperature increases,the flow stress decreases,and the decreasing range increases with the increase of the temperature variation amplitude,and the temperature sensitivity is more significant in this process.The flow stress of 30CrMnSiA structural steel is more susceptible to the effect of temperature softening,and the dynamic yield strength shows a more significant decreasing trend when the temperature rises to 300℃,which is 35%of the normal temperature.This research is helpful to improve the comprehensive mechanical properties of building metallurgical bars and improve the safety of high-rise buildings.

关 键 词：30CrMnSiA结构钢 高温压缩 霍普金森压杆 力学性能 

分 类 号：TG146[一般工业技术—材料科学与工程]