Abstract
An atomization gas used in arc spraying has a great influence on the nitriding process of titanium. Hence, we investigated the chemical composition of titanium coatings reflecting the nitriding process with the use of air, N2 and Ar as the atomization gas. The ratios of contents (at.%) for nitrogen and oxygen in the coatings were 3:1 (air), 6:1 (N2) and 2:1 (Ar), and the oxygen contents were almost the same. The peak height ratios of TiN0.3 to TiN in XRD rose with decrease of the nitrogen content. The TiN peaks of all of the coatings were slightly shifted to higher angles by the oxygen, and their intensity was influenced only by the nitrogen content. In addition, β-Ti and Fe2 Ti were detected in XRD from the surface of thin coatings, and an alloyed layer in the interface region between coating and substrate was observed in SEM. The Ar atomized coating had the thickest alloyed layer. N2 atomization is efficient in the TiN formation. Ar atomization restrains the reaction of titanium with the nitrogen and oxygen, and promotes the chemical bonding between the coating and substrate.
| Original language | English |
|---|---|
| Pages (from-to) | 264-269 |
| Number of pages | 6 |
| Journal | Materials Science and Engineering A |
| Volume | 342 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - Feb 15 2003 |
Fingerprint
Keywords
- Alloyed layer
- Arc spraying
- Atomization gas
- Titanium coating
- Titanium nitride
ASJC Scopus subject areas
- Materials Science(all)
Cite this
Influence of atomization gas on coating properties under Ti arc spraying. / Sakoda, Nobuaki; Hida, Moritaka; Takemoto, Yoshito; Sakakibara, Akira; Tajiri, Toshiro.
In: Materials Science and Engineering A, Vol. 342, No. 1-2, 15.02.2003, p. 264-269.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of atomization gas on coating properties under Ti arc spraying
AU - Sakoda, Nobuaki
AU - Hida, Moritaka
AU - Takemoto, Yoshito
AU - Sakakibara, Akira
AU - Tajiri, Toshiro
PY - 2003/2/15
Y1 - 2003/2/15
N2 - An atomization gas used in arc spraying has a great influence on the nitriding process of titanium. Hence, we investigated the chemical composition of titanium coatings reflecting the nitriding process with the use of air, N2 and Ar as the atomization gas. The ratios of contents (at.%) for nitrogen and oxygen in the coatings were 3:1 (air), 6:1 (N2) and 2:1 (Ar), and the oxygen contents were almost the same. The peak height ratios of TiN0.3 to TiN in XRD rose with decrease of the nitrogen content. The TiN peaks of all of the coatings were slightly shifted to higher angles by the oxygen, and their intensity was influenced only by the nitrogen content. In addition, β-Ti and Fe2 Ti were detected in XRD from the surface of thin coatings, and an alloyed layer in the interface region between coating and substrate was observed in SEM. The Ar atomized coating had the thickest alloyed layer. N2 atomization is efficient in the TiN formation. Ar atomization restrains the reaction of titanium with the nitrogen and oxygen, and promotes the chemical bonding between the coating and substrate.
AB - An atomization gas used in arc spraying has a great influence on the nitriding process of titanium. Hence, we investigated the chemical composition of titanium coatings reflecting the nitriding process with the use of air, N2 and Ar as the atomization gas. The ratios of contents (at.%) for nitrogen and oxygen in the coatings were 3:1 (air), 6:1 (N2) and 2:1 (Ar), and the oxygen contents were almost the same. The peak height ratios of TiN0.3 to TiN in XRD rose with decrease of the nitrogen content. The TiN peaks of all of the coatings were slightly shifted to higher angles by the oxygen, and their intensity was influenced only by the nitrogen content. In addition, β-Ti and Fe2 Ti were detected in XRD from the surface of thin coatings, and an alloyed layer in the interface region between coating and substrate was observed in SEM. The Ar atomized coating had the thickest alloyed layer. N2 atomization is efficient in the TiN formation. Ar atomization restrains the reaction of titanium with the nitrogen and oxygen, and promotes the chemical bonding between the coating and substrate.
KW - Alloyed layer
KW - Arc spraying
KW - Atomization gas
KW - Titanium coating
KW - Titanium nitride
UR - http://www.scopus.com/inward/record.url?scp=0037440641&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037440641&partnerID=8YFLogxK
U2 - 10.1016/S0921-5093(02)00281-2
DO - 10.1016/S0921-5093(02)00281-2
M3 - Article
AN - SCOPUS:0037440641
VL - 342
SP - 264
EP - 269
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
IS - 1-2
ER -