【摘要】 本文论述了贝氏体灰铸铁在不同的振幅和频率删量条件下的内耗,并分别与相同碳当量的普通灰铸铁进行了比较。研究结果表明:贝氏体灰铸铁的内耗值是普通灰铸铁低频测量条件的1.5倍,高频测量条件的1.3～3倍,且内耗值随振幅增大而增大。更多还原

【Abstract】 The effects of amplitude of bainitic damping gray cast iron and its properties of internal friction measured at low and higher frequencies are described and compared with those of common gray cast iron with same carbon equivalent.更多还原