Acta Metallurgica Sinica (English Letters) ›› 2019, Vol. 32 ›› Issue (12): 1490-1500.DOI: 10.1007/s40195-019-00918-y
Special Issue: 2019年复合材料专辑
• Orginal Article • Previous Articles Next Articles
He Liu1,2, Shuai Li1,2, Cheng-Yang Jiang3, Chun-Tang Yu1,2, Ze-Bin Bao1(), Sheng-Long Zhu1, Fu-Hui Wang3
Received:
2019-03-07
Revised:
2019-04-26
Online:
2019-12-10
Published:
2019-11-25
He Liu, Shuai Li, Cheng-Yang Jiang, Chun-Tang Yu, Ze-Bin Bao, Sheng-Long Zhu, Fu-Hui Wang. Oxidation Performance and Interdiffusion Behavior of a Pt-Modified Aluminide Coating with Pre-deposition of Ni[J]. Acta Metallurgica Sinica (English Letters), 2019, 32(12): 1490-1500.
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Parameter | Value |
---|---|
NiSO4·6H20 | 150-200 g L-1 |
NaCl | 8-10 g L-1 |
H2BO3 | 20-30 g L-1 |
Na2SO4 | 50-80 g L-1 |
C12H25NaSO4 | 0.1 g L-1 |
pH value | 5 |
Temperature | 55 °C |
Current density | 0.5-1 A dm-2 |
Table 1 Parameters for Ni pre-deposition by electroplating technique
Parameter | Value |
---|---|
NiSO4·6H20 | 150-200 g L-1 |
NaCl | 8-10 g L-1 |
H2BO3 | 20-30 g L-1 |
Na2SO4 | 50-80 g L-1 |
C12H25NaSO4 | 0.1 g L-1 |
pH value | 5 |
Temperature | 55 °C |
Current density | 0.5-1 A dm-2 |
Al | Ni | Pt | Cr | Co | |
---|---|---|---|---|---|
(Ni,Pt)Al | 41.58 | 46.24 | 5.34 | 2.26 | 4.58 |
(Ni,Pt)Al/Ni | 42.91 | 51.56 | 5.52 |
Table 2 Coating compositions measured at the region 5 μm to the surface of the two coatings in as-received state (at.%)
Al | Ni | Pt | Cr | Co | |
---|---|---|---|---|---|
(Ni,Pt)Al | 41.58 | 46.24 | 5.34 | 2.26 | 4.58 |
(Ni,Pt)Al/Ni | 42.91 | 51.56 | 5.52 |
Al | Ni | Pt | Cr | Co | |
---|---|---|---|---|---|
(Ni,Pt)Al | 26.61 | 60.45 | 4.99 | 3.36 | 4.6 |
(Ni,Pt)Al/Ni | 33.6 | 54.59 | 5.41 | 3.08 | 3.33 |
Table 3 Coating compositions measured at the region 5 μm to the surface of the two coatings after isothermal oxidation at 1100 °C for 1000 h (at.%)
Al | Ni | Pt | Cr | Co | |
---|---|---|---|---|---|
(Ni,Pt)Al | 26.61 | 60.45 | 4.99 | 3.36 | 4.6 |
(Ni,Pt)Al/Ni | 33.6 | 54.59 | 5.41 | 3.08 | 3.33 |
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