About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Bulk Metallic Glasses XX
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Presentation Title |
J-83: Microstructure and Wear Properties of Novel Fe Metamorphic Alloy Manufactured by Thermal Spray Process |
Author(s) |
Yu-Jin Hwang, Yong-Hoon Cho, Gi-Su Ham, Choongyun Paul Kim, Kee-Ahn Lee |
On-Site Speaker (Planned) |
Yu-Jin Hwang |
Abstract Scope |
The fraction of amorphous phase can be a major factor in the properties of thermal sprayed amorphous coating material. New Fe-metamorphic alloy (Fe-MMA), which transforms to the amorphous phase during the thermal spray process, was designed and manufactured and its microstructure and wear properties were investigated. Amorphous phase and crystalline phase were confirmed as two main constituent phases of thermal sprayed Fe-MMA coating layer, and (Fe,Cr)2B precipitations (320nm average size) were uniformly distributed. Room temperature wear properties of thermal sprayed Fe-MMA were performed using a pin-on-disk test. The wear rate (mm3/Nm) of Fe-MMA was similar to the representative thermal sprayed cermets (Fe-MMA: 1.96x10-5, WC-12Co: 2.33x10-5, and WC-4Cr-10Co: 1.78x10-5). Coefficient-of-fraction curves of cermets showed 3 stages (increasing-decreasing-steady state) whereas thermal sprayed Fe-MMA represented steady-state without decreasing. Based on the results above, the wear mechanism of thermal sprayed Fe-MMA coating material was discussed related to the microstructure. |
Proceedings Inclusion? |
Planned: |
Keywords |
Other, |