• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Factors determining room temperature mechanical properties of bimodal microstructures in Ti-6A1-4V alloy
【24h】

Factors determining room temperature mechanical properties of bimodal microstructures in Ti-6A1-4V alloy

机译：影响Ti-6A1-4V合金双峰组织室温力学性能的因素

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The bimodal microstructure in Ti-6Al-4V alloy comprised of equiaxed primary alpha grains and transformed beta areas can be regarded as a kind of "dual-phase" structure. In this study, the volume fraction of primary a grains was systematically modified by changing the intercritical annealing temperature in the alpha + beta two phase region and the tensile properties were evaluated at room temperature. It was found for the first time that the relative nano-hardness of the two components changed depending on their volume fractions which were determined by the intercritical annealing temperature. The change in the relative hardness was explained from a viewpoint of solid solution strengthening of alpha phase by aluminum. Moreover, the change in the relative nano-hardness was found to have a significant influence on mechanical properties of the bimodal microstructures through affecting the strain distribution behavior. A peak uniform elongation (similar to 12%) was obtained at an intermediate annealing temperature (910 degrees C) where the volume fractions of two components were nearly equal and thereby the length density of the interface between them reached a maximum.
机译：Ti-6Al-4V合金的双峰微观结构由等轴初生α晶粒和相变的β区组成，可以看作是一种“双相”结构。在这项研究中，通过改变α+β两相区中的临界退火温度，系统地改变了初生a晶粒的体积分数，并在室温下评估了拉伸性能。首次发现这两种组分的相对纳米硬度取决于它们的体积分数，而体积分数由临界退火温度决定。从铝的固溶强化α相的角度解释了相对硬度的变化。此外，发现相对纳米硬度的变化通过影响应变分布行为而对双峰微结构的机械性能具有显着影响。在中间退火温度（910摄氏度）下，两个组分的体积分数几乎相等，从而在它们之间的界面长度密度达到最大值时，获得了峰均一的伸长率（约12％）。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号