摘要
以2024铝合金为对象,研究了形变热处理工艺对合金显微组织、抗拉强度和伸长率的影响。结果表明:在相同时效处理条件下,随着铝合金变形增加,合金晶界处第二相粒子数目逐渐增加;在相同的变形下,较长时效时间处理的2024铝合金具有较高的抗拉强度和较大的伸长率;在相同时效下,随着变形的增大,铝合金的抗拉强度先增大后减小,当变形为40%时铝合金的抗拉强度达到最大,而伸长率随着变形的增大逐渐降低。
Taking 2024 Al alloy as the object,the effects of thermomechanical treaWaent on the microstrucmre, tensile strength and elongation were studied. The results show that under the same aging treatment, with the increase of Al alloy deformation, the number of the second phase particles in grain boundary increases gradually. Under the same deformation, the 2024 Al alloy of treatment with longer aging time has higher tensile strength and elongation. Under the same aging treatment, the tensile strength increases first and then decreases, with the increase of the deformation. When the deformation is 40%, tensile strength of Al alloy reaches the maximum value. And the elongation of the alloy decreases with the increase of the deformation.
出处
《热加工工艺》
CSCD
北大核心
2016年第10期231-233,共3页
Hot Working Technology
基金
重庆市教育委员会科学技术研究项目(KJ1122C2)
