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Effects of Pre-Deformation and Heat Treatment on the Microstructure and Mechanical Properties of Cu-2.5Be Sheets

机译:预变形和热处理对Cu-2.5BE薄膜微观结构和力学性能的影响

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摘要

This study investigated the effects of pre-deformation reduction and subsequent heat treatment on the microstructure and mechanical properties of Cu-2.5Be alloy. Twin formation mechanism and the strengthening contribution of boundaries and beta particles were analyzed and discussed, and the results indicate that the following relative oriented relationship existed between the beta and the surrounding alpha(Cu): (11 (1) over tilde)alpha parallel to(110)beta and [011]alpha parallel to[001]beta. Meanwhile, the main formation mechanism of annealing twins in Cu-2.5Be alloy is "growth accidents." Pre-deformation can significantly increase the yield strength of Cu-2.5Be alloy while maintaining good plasticity. The analysis of strengthening contributions indicated that the presence of twins and grain boundaries significantly improved the strength and ductility of the Cu-2.5Be alloy.
机译:该研究研究了预变形降低和随后的热处理对Cu-2.5Be合金的微观结构和机械性能的影响。 分析和讨论了双形成机制和强化界限和β颗粒的贡献,结果表明,在β和周围的α(Cu)之间存在以下相对取向关系:(11(1)型Tilde)α平行于 (110)β和[011]α平行于ββ。 同时,Cu-2.5be合金中退火双胞胎的主要形成机制是“生长事故”。 预变形可以显着提高Cu-2.5be合金的屈服强度,同时保持良好的可塑性。 加强贡献分析表明,双胞胎和晶界的存在显着提高了Cu-2.5be合金的强度和延展性。

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