Detection and Deformation Mechanism of Non-Metallic Inclusions in FGH96 Alloy Isothermal Forging Disk

Xiao Feng Wang; Xiao Ming Zhou; Jie Yang; Jin Wen Zou; Wu Xiang Wang

doi:10.4028/www.scientific.net/MSF.747-748.526

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HomeMaterials Science ForumMaterials Science Forum Vols. 747-748Detection and Deformation Mechanism of...

Detection and Deformation Mechanism of Non-Metallic Inclusions in FGH96 Alloy Isothermal Forging Disk

Abstract:

According to the defects of powder metallurgy superalloy, especially the influence and damage of inclusions on properties of disk, the deviation between nondestructive testing and metallographic testing of inclusions in FGH96 alloy isothermal forging disk was investigated. Meanwhile, the types and deformation mechanism of inclusions were studied. The results showed that the buried depth tested by metallographic detection was less 67-180μm than nondestructive testing. The size of inclusions with metallographic detection was less about 18-50μm than nondestructive testing. The major types of inclusions in practical disk were Al₂O₃and Al₂O₃-SiO₂, the inclusions run through several grains, no matter Al₂O₃ or Al₂O₃-SiO₂. The Al₂O₃inclusion and matrix was purely mechanical bonding, but the Al₂O₃-SiO₂ had reaction zone. There was remarkable effect of extrusion process on crushing and dispersing Al₂O₃ inclusion, but which was unremarkable for Al₂O₃-SiO₂.

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Periodical:

Materials Science Forum (Volumes 747-748)

Pages:

526-534

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.747-748.526

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Online since:

February 2013

Authors:

Xiao Feng Wang, Xiao Ming Zhou, Jie Yang, Jin Wen Zou, Wu Xiang Wang

Keywords:

Deformation Mechanism, Detection, Extrusion Process, Inclusion, Powder Metallurgy Superalloy

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References

[1] J.W. Zou, W.X. Wang, Development and Application of P/M Superalloy, Journal of Aeronautical materials. 26 (2006) 244-250.

Google Scholar

[2] W.J. Tu, T.M. Pollock, Deformation and Strain Storage Mechanisms during High-Temperature Compression of a Powder Metallurgy Nickel-Base Superalloy, Metallurgical and Materials Transactions A. 41(2010) 2002-(2009).

DOI: 10.1007/s11661-010-0251-1

Google Scholar

[3] T.M. Pollock, S. Tin, Nickel-Based Superalloys for Advanced Turbine Engines, Chemistry, Microstructure and Properties, Propul Power. 22(2006) 361-365.

DOI: 10.2514/1.18239

Google Scholar

[4] H.Q. Yang, R. Bao, J.Y. Zhang, et al., Creep-fatigue Crack Growth Behaviour of a Nickel-based Pewder Metallurgy Superalloy under High Temperature, Engineering Failure Analysis. 18(2011) 1058-1066.

DOI: 10.1016/j.engfailanal.2010.12.025

Google Scholar

[5] Y. Chen, Influence of Inclusion on the Stress Intensity Factors under Thermo Mechanical Loads in a P/M Superalloy, Appl. Math. Moder. 33(2009) 386-397.

DOI: 10.1016/j.apm.2007.11.008

Google Scholar

[6] X.M. Zhou, D.L. Wang, Y. Wang, W.X. Wang, Deformation Behavior of Non-metallic Inclusions in Nickel-base P/M Superalloy, Failure analysis and prevention. 3(2008) 23-27.

Google Scholar