当前位置: X-MOL 学术Mater. Res. Lett. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Particle stimulated nucleation revisited in three dimensions: a laboratory-based multimodal X-ray tomography investigation
Materials Research Letters ( IF 8.3 ) Pub Date : 2020-10-20 , DOI: 10.1080/21663831.2020.1822455
Xiuchuan Lei 1, 2 , Yubin Zhang 2 , Jun Sun 3 , Florian Bachmann 3 , Xiaofang Yang 1 , Robert Edward Sanders 1 , Dorte Juul Jensen 1, 2
Affiliation  

ABSTRACT

The efficiency of large second phase particles to stimulate nucleation of recrystallization in commercially cold rolled (25%) AA5182 aluminium sheet is investigated by laboratory multimodal X-ray tomography. The spatial distributions of 11434 particles and 742 nuclei are determined non-destructively in 3D in the same sample volume. Our work confirms that particle stimulated nucleation is the dominant nucleation mechanism, but it is also found that PSN nuclei stimulated from small particles and non-PSN nuclei can grow to large sizes. These results and the observed orientation distributions of the PSN and other nuclei are discussed in relation to existing theories.

IMPACT STATEMENT

The efficiency of the nucleation mechanism called particle stimulated nucleation is quantified in 3D by a non-destructive experimental approach.



中文翻译:

从三个方面重新探讨了颗粒激发的成核作用:基于实验室的多峰X射线断层扫描研究

摘要

通过实验室多峰X射线断层扫描技术研究了大型第二相颗粒刺激商用冷轧(25%)AA5182铝板中的重结晶形核的效率。在相同的样品体积中,以3D形式无损确定11434个粒子和742个原子核的空间分布。我们的工作证实了颗粒激发的成核作用是主要的成核机制,但同时也发现,由小颗粒和非PSN激发的PSN核可以长大。结合现有理论讨论了这些结果以及PSN和其他原子核的观测取向分布。

影响陈述

通过无损实验方法在3D中量化了称为粒子激发成核的成核机制的效率。

更新日期:2020-10-30
down
wechat
bug