UC知道哪位大侠帮我翻译一下材料加工专外，跪求。。！
来源：百度知道 编辑：UC知道 时间：2024/05/31 04:53:49
Abstract
Microstructure evolution, workability, and post-working fatigue behavior were established for aluminum alloy 2124-T851 processed via equal
channel angular extrusion (ECAE) with back pressure. ECAE without back pressure resulted in complete fracture during the first pass. On the
other hand, ECAE with back pressure enabled the production of sound material with significant grain refinement to the nano-scale. In contrast
to typical property trends, an attractive combination of tensile ductility and LCF fatigue life was obtained as well as improved strength and HCF
fatigue life compared to coarse-grained material in the as-received (T851) condition.
1. Introduction
Ultrafine-grain materials produced by equal channel angular
extrusion (ECAE) have generated significant interest due to their
superior mechanical properties compared to their coarse-grain
counterparts. However, reports of the second-tier properties of
ultrafine-grain
Microstructure evolution, workability, and post-working fatigue behavior were established for aluminum alloy 2124-T851 processed via equal
channel angular extrusion (ECAE) with back pressure. ECAE without back pressure resulted in complete fracture during the first pass. On the
other hand, ECAE with back pressure enabled the production of sound material with significant grain refinement to the nano-scale. In contrast
to typical property trends, an attractive combination of tensile ductility and LCF fatigue life was obtained as well as improved strength and HCF
fatigue life compared to coarse-grained material in the as-received (T851) condition.
1. Introduction
Ultrafine-grain materials produced by equal channel angular
extrusion (ECAE) have generated significant interest due to their
superior mechanical properties compared to their coarse-grain
counterparts. However, reports of the second-tier properties of
ultrafine-grain
摘要
组织演变、和易性、post-working疲劳行为建立了加工铝合金2124-T851通过平等
角挤压(ECAE频道)和压力。不背压ECAE导致完全骨折在第一次通过。在
另一方面,ECAE使生产和背压吸声材料的工艺和显著的微型化。相比,
典型的财产的趋势,极具吸引力的组合的韧性和抗疲劳性能得到改善,以及强度HCF
疲劳寿命比粗原料(T851原片。)
1。介绍
特细的颗粒材料生产径角
挤压(ECAE)由于其产生显著
优越的力学性能较粗粒度
同行。然而,报告的第二梯队的性能
ultrafine-grain材料加工ECAE最近公布了
广泛的行为,从显著提高疲劳寿命
在钛合金[1]疲劳寿命短,在铜合金[2]。
这样的结果可能是由于滑动模式的差异
和循环硬化/软化行为[3]。再者,它
被发现的影响取决于粒度对疲劳寿命
在应变振幅[4]。在高塑胶strain-amplitudes
在低周疲劳累积(LCF)地区的疲劳寿命,降低
为ultrafine-grain材料,而在倍平高周波疲劳
(HCF)政权的粒度效应是对立的。一个可能的
解释[5,6]就是ultrafine-grain材料制作
通过severe-plastic变形具有很高的抗拉强度
和减少延展性。生活在这个HCF地区随着年龄的增长而增长
增加强度。另一方面,生活在低周疲劳性能
兄弟，确实有点难~~我试了几次还是不行，水平不够帮不到忙啦~！遗憾~~！