通过压缩试验,研究了供应态H62黄铜棒材所表现出的超塑性变形的力学特性。在温度650～800℃、卡头速度0.0046～0.537mm/s范围内,在4t载荷下可获得最大真应变ε_(max)在2.3以上,当变形温度为700℃,卡头速度为0.0046mm/s时,ε_(max)可达2.91,流动应力为0.80MPa。金相显微组织观察表明变形过程中发生动态再结晶。 Through the compression test, the mechanical properties of the superplastic deformation of the H62 brass bar were investigated. The maximum true strain ε max (max) is above 2.3 under the condition of temperature of 650-800 ℃ and chuck velocity of 0.0046-0.537 mm / s under the load of 4t. When the deformation temperature is 700 ℃ and the chuck velocity is 0.0046mm / s, ε max can reach 2.91 and flow stress can reach 0.80 MPa. Metallographic microstructure observations indicate that dynamic recrystallization occurs during deformation.