国产高速重载列车车轴用钢EA4T的冷脆转变温度测定  

Determination of Ductile-brittle Transition Temperature of High-speed Overloaded Locomotive Axle Steel EA4T

作　　者：邹静[1] 雷旻[1,2] 梁益龙[1,2] 朱建培[1,2] 康丽梅[1] 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550003 [2]贵州省材料结构与强度重点实验室,贵州贵阳550003

出　　处：《现代机械》2011年第2期79-80,共2页Modern Machinery

摘　　要：EA4T钢是世界先进标准EN13261规定的高速、重载铁路车轴用钢,极端气候状况的频发对列车安全运行提出了严峻考验。本文对国产EA4T钢进行低温系列冲击试验,对其冷脆转变温度进行了测量分析。试验表明:EA4T钢经680℃回火空冷后的冷脆转变温度为-108℃。EA4T is a high-speed railway and heavy-load axle steel which is provided by advanced world standards EN13261.As there are a great number of extreme weather events,it offered the acid test to the safe operation of trains.Through a series of low-temperature impact test on steel EA4T and ductile-brittle transition temperature of domestic steel EA4T is measured and analyzed.The experiment results indicate that the ductile-brittle transition temperature of Steel EA4T at 680℃ is-108℃.The information of the whole process is detailed in the paper.

关 键 词：系列冲击试验 EA4T钢 冷脆转变温度 

分 类 号：TG111.91[金属学及工艺—物理冶金]