Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8011924 | Transactions of Nonferrous Metals Society of China | 2017 | 11 Pages |
Abstract
The Ce/Cr coating was homogenously deposited onto the reticulated open-cell Ni-Cr-Fe alloy foam by the pack cementation process. The mechanical properties of the Ce/Cr coated alloy foams were investigated by the quasi-static compression test. Simultaneously, the deformation and failure mechanisms of Ce/Cr coated alloy foams were discussed. The results show that the adding amount of CeO2 powders influences the mechanical properties of the Ce/Cr coated alloy foams. Despite an increase in density as compared to the uncoated foams, the Ce/Cr coated foams exhibit improvement in both yield strength and energy-absorption performance. Especially, the energy-absorption performance of 2% Ce/Cr (mass fraction) coated alloy foam is averagely 1.9 times as high as that of the bare Ni-Cr-Fe alloy foam. In addition, the mechanical properties of the Ce/Cr coated alloy foams increase with the increase of strain rate. The distortion and cracking are mainly the deformation behavior of the Ce/Cr coated alloy foam, confirmed by SEM images.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Qiu PANG, Zhi-li HU, Guo-rong WANG,