Consolidation and microstructures of microwave sintered W-25Cu alloys with Fe addition |
| |
| Authors: | Shudong Luo Jianhong Yi Yingli Guo Yuandong Peng Liya Li Gang Chen Junming Ran |
| |
| Affiliation: | (1) Department of Materials and Metallurgical Engineering, Indian Institute of Technology, Kanpur, India;(2) Materials Research Institute, The Pennsylvania State University, University Park, USA; |
| |
| Abstract: | W-25Cu alloys were microwave sintered in a 2.45 GHz multimode applicator. The densification, microstructure and their dependence
on sintering mode and Fe addition were investigated in detail. Owing to the volumetric heating intrinsic in microwave processing,
a microstructure with larger W grain size in center regions was observed as against larger grain size in edge regions for
conventional sintering. Microwave sintering demonstrates its intrinsic advantages such as rapid heating rate, densification
enhancement and microstructural homogeneity; but it undesirably promotes W grain growth. Under microwave sintering, the role
of Fe addition on compact consolidation is not so substantial as under conventional sintering. Moreover Fe degrades the microstructural
quality, generating worse uniformity and coarser W grains. |
| |
| Keywords: | |
| 本文献已被 CNKI SpringerLink 等数据库收录！ |
|
