Research on the Laser Welding Technology of GH4169

Abstract:

Superalloys have a high tensile strength at elevated temperature, a good stability and reliability in a large range of temperatures. Among these superalloys, GH4169 is widely used as thermal components in the turbojet engine. Traditional welding methods are difficult to adapt to the development of high-tech manufacturing. Laser welding plays an important role in superalloys welding field increasingly for its advantages. In this investigation, superalloy GH4169 plate with a thickness of 1mm was welded utilizing the pulsed laser welding and the mechanical properties of the laser welded joints are analyzed. The maximum tensile strength is 928 Mpa, which is close to the base material tensile strength. The welded joint can meet the requirements of users.

• Periodical: Applied Mechanics and Materials (Volumes 633-634)
• Pages: 703-706
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.633-634.703
• Online since: September 2014
• Authors: Jia Rui Qi, Hua Kai Wei, Dan Feng Zhang, Li Han
• Keywords: GH4169, Laser Welding, Mechanical Property, Superalloy

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