| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1599939 | Intermetallics | 2014 | 5 Pages |
Abstract
The effect of hydrogen on the interfacial reaction between Ti-47Al alloy melt and graphite mold was studied by plasma-arc melting in hydrogen atmosphere. Especially, reduction of recarburization which is harmful to the mechanical properties of TiAl alloys has been investigated. The carbon concentration in the interface of Ti-47Al alloy, as well as the corresponding reaction distance decreases rapidly with increasing hydrogen partial pressure. Activated hydrogen atoms dissociated in high-temperature arc probably take part in the interfacial reactions, represented by [C]+4[H]=CH4.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Xinwang Liu, Fuchu Liu, Hui Du, Zhaolong Zhang, Qizhou Cai, Zitian Fan,