Effect of aluminizing coating on fatigue properties of DD6 single crystal superalloy

Jianmin DONG, Jiarong LI, Zhen ZHEN, Zhenhua XU

PDF(2301 KB)
PDF(2301 KB)
Journal of Materials Engineering ›› 2025, Vol. 53 ›› Issue (1) : 65-71. DOI: 10.11868/j.issn.1001-4381.2024.000054
RESEARCH ARTICLE

Effect of aluminizing coating on fatigue properties of DD6 single crystal superalloy

Author information +
History +

Abstract

To investigate the effects of aluminizing coating on the surface integrity and rotational bending high cycle fatigue performance of DD6 alloy， the chemical vapor deposition method is used to aluminize DD6 fatigue samples after standard heat treatment. The cross-sectional microstructure and elemental distribution of DD6 alloy samples with aluminizing coating are analyzed using SEM and EDS， and the high cycle fatigue properties of the uncoated and coated samples are tested at 760 ℃ and 980 ℃， respectively. The results show that the surface area of the sample with aluminizing coating is mainly divided into two layers： inner and outer. The outer layer is mainly composed of the β-NiAl phase， and the inner layer is a diffusion layer， containing many solid solution strengthening elements. The aluminizing coating can slightly reduce the rotational bending high cycle fatigue performance of the alloy at 760 ℃ and 980 ℃ and has a significant impact on the fatigue life in the high-stress amplitude region and a small impact on the low-stress amplitude region. The coupling effect of surface roughness， oxidation damage， and element interdiffusion is the fundamental reason for the difference in fatigue life between uncoated and coated samples.

Key words

DD6 / aluminizing coating / fatigue / single crystal superalloy

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations
Jianmin DONG , Jiarong LI , Zhen ZHEN , et al. Effect of aluminizing coating on fatigue properties of DD6 single crystal superalloy. Journal of Materials Engineering. 2025, 53(1): 65-71 https://doi.org/10.11868/j.issn.1001-4381.2024.000054

References

List( Publishing order | Descend order by publishing year | Descend order by cited within ) Chart analysis
[1]
李建平，陆峰，蔡妍，等 ．空心叶片内腔化学气相沉积设备及抗氧化涂层研究［J］．材料工程， 2005（10）： 38-41.
LI J P， LU F， CAI Y， et al. Study of CVD equipment and protective coatings for the surface of internal cooling channels in turbine blades［J］. Journal of Materials Engineering， 2005（10）： 38-41.
本文引用 [2]
[2]
顿易章， 吴勇， 张磊. CVD 法在镍基高温合金表面制备改性铝化物涂层的研究进展［J］. 金属热处理， 2018， 43（3）： 145-150.
DUN Y Z， WU Y， ZHANG L. Research progress of application of CVD method in preparation of modified aluminide coating on nickel base superalloy［J］. Heat Treatment of Metals， 2018， 43（3）： 145-150.
[3]
蔡妍，李建平，汤智慧，等. Al涂层修复对DD5 合金性能的影响［J］. 装备环境工程，2020，17（11）：108-113.
CAI Y， LI J P， TANG Z H，et al. Effect of Al coating repair on properties of DD5 alloy［J］.Equipment Environmental Engineering，2020，17（11）：108-113.
本文引用 [2]
[4]
毛杰，马景涛，邓畅光，等. 表面粗糙度对PS-PVDYSZ陶瓷层性能的影响［J］.材料工程，2020， 48（5）： 144-150.
MAO J， MA J T， DENG C G， et al. Effect of surface roughness on properties of PS-PVD YSZ ceramic coating［J］. Journal of Materials Engineering， 2020， 48（5）： 144-150.
[5]
PYTEL M， GÓRAL M， NOWOTNIK A， et al. Heat treatment and CVD aluminizing of Ni-base René 80 superalloy［J］. Journal of Achievements in Materials and Manufacturing Engineering，2012，51（1）：30-38.
本文引用 [1]
[6]
许振华，戴建伟，牛静，等.沉积温度对铝化物涂层相结构与微观形貌的影响［J］.腐蚀与防护， 2013， 34（11）：991-996.
XU Z H， DAI J W， NIU J， et al. Influence of deposition temperature on the phase structure and morphology of aluminide coatings［J］. Corrosion&Protection， 2013， 34（11）：991-996.
本文引用 [2]
[7]
ROGER C R.高温合金基础及应用［M］.北京： 机械工业出版社，2016.
ROGER C R. The superalloy foundation and application［M］.Beijing： China Machine Press，2016.
本文引用 [1]
[8]
GORAL M， PYTEL M， DYCHTON K， et al. Kinetics growth and oxidation resistance of aluminide coatings deposited by the CVD method on Re 80 superalloy［J］. Journal of Minerals and Materials Characterization and Engineering， 2012， 11， 853-857.
本文引用 [1]
[9]
ITOH Y， SAITOH M， ISHIWATA Y. Influence of high-temperature protective coatings on the mechanical properties of nickel-based superalloys［J］. Journal of Materials Science， 1999， 34（16）： 3957-3966.
本文引用 [1]
[10]
ITOH Y， SAITOH M， TAKAKI K， et al. Effect of high-temperature protective coatings on fatigue lives of nickel-based superalloys［J］. Fatigue & Fracture of Engineering Materials & Structures， 2001， 24（12）： 843-854.
本文引用 [1]
[11]
谢洪吉， 李嘉荣， 韩梅， 等. 超温对DD6单晶高温合金组织及高周疲劳性能影响［J］. 稀有金属材料与工程， 2018， 47（8）： 2483-2488.
XIE H J， LI J R， HAN M， et al. Effect of over-temperature on microstructures and high cycle fatigue properties of the single crystal superalloy DD6［J］. Rare Metal Materials and Engineering， 2018， 47（8）， 2483-2488.
本文引用 [2]
[12]
林翠，杜楠，赵晴 ．高温涂层研究的新进展［J］．材料保护，2001，34（6）：4-7．
LIN C， DU N， ZHAO Q. New approaches on high-temperature coatings［J］．Journal of Materials Protection， 2001，34（6）：4-7．
本文引用 [2]
[13]
YU Z， WADLEY H N ．Fabrication of （Ni， Pt） Al coatings by EB-DVD ［J］．Surface and Coatings Technology，2007，204：2411-2420．
本文引用 [1]
[14]
DONG J M， LI J R. Effect of etching on fatigue properties of DD6 single-crystal superalloy［J］. Journal of Materials Engineering and Performance，2020， 29（5）：3195-3204.
本文引用 [2]
[15]
李嘉荣， 董建民， 韩梅， 等. 吹砂对DD6单晶高温合金表面完整性和高周疲劳强度的影响［J］. 金属学报， 2023， 59（9）： 1201-1208.
LI J R， DONG J M， HAN M， et al. Effects of sand blasting on surface integrity and high cycle fatigue properties of DD6 single crystal superalloy［J］. Acta Metallurgica Sinica， 2023，59（9）：1201-1208.
本文引用 [2]
[16]
LIU L， YU J J， XU Y， et al. High cycle fatigue behavior of a single crystal superalloy at elevated temperatures［J］. Materials Science and Engineering： A， 2007， 454/455： 357-366.
本文引用 [1]
[17]
LUKÁŠ P， KUNZ L， SVOBODA M. High-temperature ultra-high cycle fatigue damage of notched single crystal superalloys at high mean stresses［J］. International Journal of Fatigue， 2005， 27（10/12）： 1535-1540.
本文引用 [1]
[18]
LAMM M， SINGER R F. The effect of casting conditions on the high cycle fatigue properties of the single crystal nickel base superalloy PWA1483［J］. Metallurgical and Materials Transactions A， 2007， 38A： 1177-1183.
本文引用 [1]
[19]
ZHU X， SHYAM A， JONES J W， et al. Effects of microstructure and temperature on fatigue behavior of E319-T7 cast aluminum alloy in very long life cycles［J］. International Journal of Fatigue， 2006， 28（11）： 1566-1571.
本文引用 [1]

Comments

PDF(2301 KB)

Accesses

Citation

Detail
Sections
Recommended
Copyright © Journal of Materials Engineering, All Rights Reserved.
Powered by Beijing Magtech Co. Ltd.

/

〈 〉