陈柳清同学在 Materials Research Letters 期刊合作发表论文

由陈柳清同学参与完成的题目为“Low modulus Ti-rich biocompatible TiNbZrTaHf concentrated alloys with exceptional plasticity”的论文被期刊Materials Research Letters接收。

在本文中，陈柳清使用第一性原理的方法，计算了TixNbZrTaHf(x：20~60)合金随不同Ti含量的表面能（γsurf）和堆垛层错能（γusf），并且以γsurf/γusf作为衡量合金延性的指标，获得了随Ti含量增加，γsurf/γusf增大的结果，说明了合金延性随Ti含量的增加而增加，证明了实验的结论。

该文章基本信息如下：

• 标题：Low modulus Ti-rich biocompatible TiNbZrTaHf concentrated alloys with exceptional plasticity

• 作者：C. Yang, S. J. Yang, L. Q. Chen, H. K. Dong, Xianbao Duan*, C. Y. Yu, W. W. Zhang, L. H. Liu*

• 摘要：This study investigates the evolutions of microstructure and performance of TiNbZrTaHf-based alloys from equiatomic high-entropy alloys to Ti-rich dilute alloys. A novel biocompatible alloy, Ti50Nb12.5Zr12.5Ta12.5Hf12.5, was developed with a high yield strength of 839 ± 12 MPa, low modulus of 61.5 GPa, low magnetic susceptibility of ∼1.99 × 10−6 cm3g−1, and unprecedented tensile plasticity of 28.7 ± 2.2%. The study discusses the underlying mechanisms responsible for these superior performances, attributing the exceptional plasticity to the activation of cross-slip dislocations, enhanced dynamic recovery and high resistance to crack propagation. The findings provide new insights into the development of biomedical titanium alloys.

• 期刊：Materials Research Letters

• 链接：https://www.tandfonline.com/doi/full/10.1080/21663831.2023.2197942

Materials Research Letters 是材料领域有广泛影响力的期刊，在中科院分区中属于材料科学大类2区期刊。