It shows that the ultimate tensile strength and hardness of pure aluminum L2 are improved greatly by ECAP process, the ultimate tensile strength and hardness of L2 alloy is 95% and 70% higher than that of the alloy before ECAP processed respectively.

• 结果表明,随挤压次数的增加,L2的抗拉强度和硬度得到显著提高,抗拉强度可提高95%25,硬度提高70%25。