期刊
MATERIALS
卷 13, 期 20, 页码 -出版社
MDPI
DOI: 10.3390/ma13204641
关键词
high-throughput experimentation; additive manufacturing; Ti– Mn alloys; spherical indentation; statistical analysis; Gaussian process regression
类别
资金
- National Science Foundation [1435237, 1606567, N00014-18-1-2879]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1435237, 1606567] Funding Source: National Science Foundation
Compositionally graded cylinders of Ti-Mn alloys were produced using the Laser Engineered Net Shaping (LENS (TM)) technique, with Mn content varying from 0 to 12 wt.% along the cylinder axis. The cylinders were subjected to different post-build heat treatments to produce a large sample library of alpha-beta microstructures. The microstructures in the sample library were studied using back-scattered electron (BSE) imaging in a scanning electron microscope (SEM), and their mechanical properties were evaluated using spherical indentation stress-strain protocols. These protocols revealed that the microstructures exhibited features with averaged chord lengths in the range of 0.17-1.78 mu m, and beta content in the range of 20-83 vol.%. The estimated values of the Young's moduli and tensile yield strengths from spherical indentation were found to vary in the ranges of 97-130 GPa and 828-1864 MPa, respectively. The combined use of the LENS technique along with the spherical indentation protocols was found to facilitate the rapid exploration of material and process spaces. Analyses of the correlations between the process conditions, several key microstructural features, and the measured material properties were performed via Gaussian process regression (GPR). These data-driven statistical models provided valuable insights into the underlying correlations between these variables.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据