The effect of Pd film on diffusion behavior of DD3 superalloy

Hefei Li; Li Zhai; Kuo Jiang; Zhaohui Zhou; Shengkai Gong

The effect of Pd film on diffusion behavior of DD3 superalloy

Hefei Li^*
, Li Zhai
, Kuo Jiang
, Zhaohui Zhou
, Shengkai Gong

^*Corresponding author for this work

School of Mechanical Engineering

Beihang University

Research output: Contribution to journal › Article › peer-review

Abstract

Adopting electroplating process, a 10 μm palladium film was prepared on DD3 substrate. To examine the possibility of the palladium film used as the anti-diffusion layer between the bond coating and the substrate in the thermal barrier coating system, the 4 h and 14 h vacuum heat treatment at 1050 °C was carried out. The SEM/EDS study and the XRD analysis show that after vacuum heat treatment, the elements such as Al, Cr, Co, Ta and Ni diffuse outwards to the coating surface. And PdAl, α-Al₂O₃, and TiO₂ are formed on the coating surface even under the vacuum condition. So Palladium film itself can not be used as the anti-diffusion layer between the substrate and the bond coating.

Original language	English
Pages (from-to)	1323-1326
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	35
Issue number	8
Publication status	Published - Aug 2006

Keywords

Diffusion
Pd
Superalloy
Thermal barrier coating

Cite this

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title = "The effect of Pd film on diffusion behavior of DD3 superalloy",

abstract = "Adopting electroplating process, a 10 μm palladium film was prepared on DD3 substrate. To examine the possibility of the palladium film used as the anti-diffusion layer between the bond coating and the substrate in the thermal barrier coating system, the 4 h and 14 h vacuum heat treatment at 1050 °C was carried out. The SEM/EDS study and the XRD analysis show that after vacuum heat treatment, the elements such as Al, Cr, Co, Ta and Ni diffuse outwards to the coating surface. And PdAl, α-Al2O3, and TiO2 are formed on the coating surface even under the vacuum condition. So Palladium film itself can not be used as the anti-diffusion layer between the substrate and the bond coating.",

keywords = "Diffusion, Pd, Superalloy, Thermal barrier coating",

author = "Hefei Li and Li Zhai and Kuo Jiang and Zhaohui Zhou and Shengkai Gong",

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T1 - The effect of Pd film on diffusion behavior of DD3 superalloy

AU - Li, Hefei

AU - Zhai, Li

AU - Jiang, Kuo

AU - Zhou, Zhaohui

AU - Gong, Shengkai

PY - 2006/8

Y1 - 2006/8

N2 - Adopting electroplating process, a 10 μm palladium film was prepared on DD3 substrate. To examine the possibility of the palladium film used as the anti-diffusion layer between the bond coating and the substrate in the thermal barrier coating system, the 4 h and 14 h vacuum heat treatment at 1050 °C was carried out. The SEM/EDS study and the XRD analysis show that after vacuum heat treatment, the elements such as Al, Cr, Co, Ta and Ni diffuse outwards to the coating surface. And PdAl, α-Al2O3, and TiO2 are formed on the coating surface even under the vacuum condition. So Palladium film itself can not be used as the anti-diffusion layer between the substrate and the bond coating.

AB - Adopting electroplating process, a 10 μm palladium film was prepared on DD3 substrate. To examine the possibility of the palladium film used as the anti-diffusion layer between the bond coating and the substrate in the thermal barrier coating system, the 4 h and 14 h vacuum heat treatment at 1050 °C was carried out. The SEM/EDS study and the XRD analysis show that after vacuum heat treatment, the elements such as Al, Cr, Co, Ta and Ni diffuse outwards to the coating surface. And PdAl, α-Al2O3, and TiO2 are formed on the coating surface even under the vacuum condition. So Palladium film itself can not be used as the anti-diffusion layer between the substrate and the bond coating.

KW - Diffusion

KW - Pd

KW - Superalloy

KW - Thermal barrier coating

UR - https://www.scopus.com/pages/publications/33749462281

M3 - Article

AN - SCOPUS:33749462281

SN - 1002-185X

VL - 35

SP - 1323

EP - 1326

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 8

ER -

The effect of Pd film on diffusion behavior of DD3 superalloy

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Keywords

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