Abstract
Nickel-based alloy powder was laser surface melted on the surface of S45C steel substrate with laser beam. The effect of WC addition on the interface layer and microstructures in laser alloyed layer has been investigated by X-ray diffraction analysis, SEM and TEM. There are three zones in the laser alloyed layer. The interface zone is shown as a bright layer of single γ-(Fe,Ni) phase. After the addition of WC, the interface changes from flat state to rough state, and the primary arms have smaller cellular structures on the interface. Eutectic of γ-(Fe,Ni)+Fe 23B6 in NiCrBSi sample changes into γ-(Fe, Ni)+Fe3B in NiCrBSi+10 wt.% WC sample. In this sample, the eutectic zone approximately 20 μm in width shows fine structure which may be caused by eutectic structure prior growth due to eutectic temperature decrease. The martensite in heat-affected zone is formed due to the decrease of the critical cooling rate.
| Original language | English |
|---|---|
| Pages (from-to) | 284-387 |
| Number of pages | 104 |
| Journal | Surface and Coatings Technology |
| Volume | 169-170 |
| DOIs | |
| Publication status | Published - Jun 2 2003 |
Fingerprint
Keywords
- Interface
- Laser alloyed
- NiCrBSi
- Transmission electron microscopy
- WC
ASJC Scopus subject areas
- Surfaces, Coatings and Films
- Condensed Matter Physics
- Surfaces and Interfaces
Cite this
Effect of WC addition on microstructures of laser melted Ni-based alloy powder. / Zhang, Y. M.; Hida, M.; Sakakibara, A.; Takemoto, Yoshito.
In: Surface and Coatings Technology, Vol. 169-170, 02.06.2003, p. 284-387.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of WC addition on microstructures of laser melted Ni-based alloy powder
AU - Zhang, Y. M.
AU - Hida, M.
AU - Sakakibara, A.
AU - Takemoto, Yoshito
PY - 2003/6/2
Y1 - 2003/6/2
N2 - Nickel-based alloy powder was laser surface melted on the surface of S45C steel substrate with laser beam. The effect of WC addition on the interface layer and microstructures in laser alloyed layer has been investigated by X-ray diffraction analysis, SEM and TEM. There are three zones in the laser alloyed layer. The interface zone is shown as a bright layer of single γ-(Fe,Ni) phase. After the addition of WC, the interface changes from flat state to rough state, and the primary arms have smaller cellular structures on the interface. Eutectic of γ-(Fe,Ni)+Fe 23B6 in NiCrBSi sample changes into γ-(Fe, Ni)+Fe3B in NiCrBSi+10 wt.% WC sample. In this sample, the eutectic zone approximately 20 μm in width shows fine structure which may be caused by eutectic structure prior growth due to eutectic temperature decrease. The martensite in heat-affected zone is formed due to the decrease of the critical cooling rate.
AB - Nickel-based alloy powder was laser surface melted on the surface of S45C steel substrate with laser beam. The effect of WC addition on the interface layer and microstructures in laser alloyed layer has been investigated by X-ray diffraction analysis, SEM and TEM. There are three zones in the laser alloyed layer. The interface zone is shown as a bright layer of single γ-(Fe,Ni) phase. After the addition of WC, the interface changes from flat state to rough state, and the primary arms have smaller cellular structures on the interface. Eutectic of γ-(Fe,Ni)+Fe 23B6 in NiCrBSi sample changes into γ-(Fe, Ni)+Fe3B in NiCrBSi+10 wt.% WC sample. In this sample, the eutectic zone approximately 20 μm in width shows fine structure which may be caused by eutectic structure prior growth due to eutectic temperature decrease. The martensite in heat-affected zone is formed due to the decrease of the critical cooling rate.
KW - Interface
KW - Laser alloyed
KW - NiCrBSi
KW - Transmission electron microscopy
KW - WC
UR - http://www.scopus.com/inward/record.url?scp=0038685846&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0038685846&partnerID=8YFLogxK
U2 - 10.1016/S0257-8972(03)00058-6
DO - 10.1016/S0257-8972(03)00058-6
M3 - Article
AN - SCOPUS:0038685846
VL - 169-170
SP - 284
EP - 387
JO - Surface and Coatings Technology
JF - Surface and Coatings Technology
SN - 0257-8972
ER -