| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1556226 | Journal of Materials Science & Technology | 2013 | 4 Pages |
Abstract
The microhardness distribution of the diode laser epitaxially deposited IN718 alloy coating was investigated. The Laves concentration in different regions of the coating was measured by binarization processing. The strengthening phase of the coating was characterized by transmission electron microscopy (TEM). The results showed that the microhardness increased along the depth of the coating. Part of Laves dissolved into austenitic matrix during the successive laser deposition. A little amount of strengthening phase was precipitated in the bottom region of the coating. It was attributed to the heat effect from the thermal cycle of successive deposition on the microstructure in the bottom region of the epitaxially deposited coating.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Chemistry
Authors
Yaocheng Zhang, Zhuguo Li, Pulin Nie, Yixiong Wu,