Joining of Hastelloy X to Inconel 718 using an infrared process

C. A. Blue; R. A. Blue; R. Y. Lin; Jih Fen Lei; W. D. Williams

doi:10.1016/0924-0136(95)02104-3

Joining of Hastelloy X to Inconel 718 using an infrared process

C. A. Blue, R. A. Blue, R. Y. Lin, Jih Fen Lei, W. D. Williams

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

9 Scopus citations

Abstract

Joining of Hastelloy X to Inconel 718 by a rapid infrared processing technique has been investigated at 1150 °C using a nickel-based brazing alloy AMS 4777, Ni-7Cr-3Fe-3.2B-4.5Si-0.06C in wt.%. With this infrared technique, joining typically was completed in seconds in ambient argon. The effects of the infrared joining time on the joint and base material microstructures, elemental distribution within the microstructures and the resulting joint shear strength were investigated. Results show that excellent joint shear strengths of as high as 503 MPa were obtained when processed at approximately 1150 °C for 120 s. Micro-structural examinations of the joint with an optical microscope and a scanning electron microscope indicate that good wetting existed between the brazing alloy and both Hastelloy X and Inconel 718. The braze-affected zone width increased with increasing joining time but did not show a direct correlation with the joint strength. Hastelloy X and Inconel 718 exhibited no noticeable change in microstructures due to the rapid heating cycle of infrared processing.

Original language	English
Pages (from-to)	32-38
Number of pages	7
Journal	Journal of Materials Processing Technology
Volume	58
Issue number	1
DOIs	https://doi.org/10.1016/0924-0136(95)02104-3
State	Published - Mar 1 1996
Externally published	Yes

Funding

Financial supports fi'om NASA Space Engineering Research Center, Edison Materials Technology Center, and NASA Lewis Research Center, are very much appreciated. We are grateful for the assistance of and valuable discussions with Sunil Warrier, and C.C. Chen of the University of Cincinnati. Technical support from John Whitaker and Doug Bowling is also greatly appreciated.

Funders	Funder number
Edison Materials Technology Center
NASA Lewis Research Center
NASA Space Engineering Research Center

Keywords

Braze-affected zone
Hastelloy X
Inconel 718
Infrared joining
Joint microstructure
Joint shear strength

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title = "Joining of Hastelloy X to Inconel 718 using an infrared process",

abstract = "Joining of Hastelloy X to Inconel 718 by a rapid infrared processing technique has been investigated at 1150 °C using a nickel-based brazing alloy AMS 4777, Ni-7Cr-3Fe-3.2B-4.5Si-0.06C in wt.%. With this infrared technique, joining typically was completed in seconds in ambient argon. The effects of the infrared joining time on the joint and base material microstructures, elemental distribution within the microstructures and the resulting joint shear strength were investigated. Results show that excellent joint shear strengths of as high as 503 MPa were obtained when processed at approximately 1150 °C for 120 s. Micro-structural examinations of the joint with an optical microscope and a scanning electron microscope indicate that good wetting existed between the brazing alloy and both Hastelloy X and Inconel 718. The braze-affected zone width increased with increasing joining time but did not show a direct correlation with the joint strength. Hastelloy X and Inconel 718 exhibited no noticeable change in microstructures due to the rapid heating cycle of infrared processing.",

keywords = "Braze-affected zone, Hastelloy X, Inconel 718, Infrared joining, Joint microstructure, Joint shear strength",

author = "Blue, {C. A.} and Blue, {R. A.} and Lin, {R. Y.} and Lei, {Jih Fen} and Williams, {W. D.}",

year = "1996",

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AU - Blue, C. A.

AU - Blue, R. A.

AU - Lin, R. Y.

AU - Lei, Jih Fen

AU - Williams, W. D.

PY - 1996/3/1

Y1 - 1996/3/1

N2 - Joining of Hastelloy X to Inconel 718 by a rapid infrared processing technique has been investigated at 1150 °C using a nickel-based brazing alloy AMS 4777, Ni-7Cr-3Fe-3.2B-4.5Si-0.06C in wt.%. With this infrared technique, joining typically was completed in seconds in ambient argon. The effects of the infrared joining time on the joint and base material microstructures, elemental distribution within the microstructures and the resulting joint shear strength were investigated. Results show that excellent joint shear strengths of as high as 503 MPa were obtained when processed at approximately 1150 °C for 120 s. Micro-structural examinations of the joint with an optical microscope and a scanning electron microscope indicate that good wetting existed between the brazing alloy and both Hastelloy X and Inconel 718. The braze-affected zone width increased with increasing joining time but did not show a direct correlation with the joint strength. Hastelloy X and Inconel 718 exhibited no noticeable change in microstructures due to the rapid heating cycle of infrared processing.

AB - Joining of Hastelloy X to Inconel 718 by a rapid infrared processing technique has been investigated at 1150 °C using a nickel-based brazing alloy AMS 4777, Ni-7Cr-3Fe-3.2B-4.5Si-0.06C in wt.%. With this infrared technique, joining typically was completed in seconds in ambient argon. The effects of the infrared joining time on the joint and base material microstructures, elemental distribution within the microstructures and the resulting joint shear strength were investigated. Results show that excellent joint shear strengths of as high as 503 MPa were obtained when processed at approximately 1150 °C for 120 s. Micro-structural examinations of the joint with an optical microscope and a scanning electron microscope indicate that good wetting existed between the brazing alloy and both Hastelloy X and Inconel 718. The braze-affected zone width increased with increasing joining time but did not show a direct correlation with the joint strength. Hastelloy X and Inconel 718 exhibited no noticeable change in microstructures due to the rapid heating cycle of infrared processing.

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KW - Joint shear strength

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Joining of Hastelloy X to Inconel 718 using an infrared process

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