摘要
为满足ASTMA 536标准中80-55-06级球墨铸铁力学性能要求,冶炼了不同含铜量的球墨铸铁,检测其显微组织、力学性能、硬度及断口形貌。结果发现,不同含铜量的球墨铸铁的力学性能和显微组织也不相同,包括石墨球的数量、石墨球的直径、铁素体和珠光体的含量。此外,铜含量在0.3%?0.5%的球墨铸铁的力学性能符合ASTM A536标准中80-55-06级球墨铸铁的要求。
Nodular irons containing different amounts of copper were smelt to meet the mechanical property requirements for 80-55-06 grade of nodular iron in ASTM A536,then ere tested for microstructure,mechanical properties,hardness,and fracture pattern.The results indicated that the nodular irons containing different amounts of copper exhibited different mechanical properties and different microstructures,involving amount and diameter of graphite nodule,contents of ferrite and pearlite.In addition,mechanical properties of the nodular irons containing 0.3 to 0.5%Cu conformed with the requirements for 80-55-06 grade of nodular iron in ASTM A536.
作者
田长亮
TIAN Changliang(CRRC QIQIHAR ROLLING STOCK CO.,LTD.,Qiqihar 161002,Heilongjiang china)
出处
《铸造工程》
2019年第3期31-37,共7页
Foundry Engineering
