Linear friction welding of Haynes 282 Ni superalloy

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Linear friction welding of Haynes 282 Ni superalloy at 100–500 MPa achieves 100% joint efficiency, with stored strain energy driving grain growth and twinning during post-weld heat treatment at high pressures. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

Abhishek Sharma; Yasuhiro Aoki; Amlan Kar; Yoshiaki Morisada; Kohsaku Ushioda; Masaaki Nakai; Hidetoshi Fujii

doi:10.1016/j.matdes.2026.116296

May 1, 2026Materials & DesignOpen Access

Linear friction welding of Haynes 282 Ni superalloy

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Key Points

The aim is to explore the effects of linear friction welding on Haynes 282 nickel superalloy at various pressures.
Conducted first-time investigation of linear friction welding at pressures of 100-500 MPa.
Analyzed joint performance and microstructural changes after post-weld heat treatment.
Achieved 100% joint efficiency with fractures occurring in the base metal.
High pressures of 300 and 500 MPa led to significant grain growth and twinning.
Stored strain energy was identified as the main driving force during post-weld heat treatment.

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Implication

Investigates welding efficiency and microstructure changes in nickel superalloys, suggesting optimal pressure levels.

Abstract

• First-time LFW investigation of Haynes 282 Ni superalloy at 100–500 MPa. • Joints achieved 100% efficiency with fracture in the base metal. • High pressures (300, and 500 MPa) promote grain growth and twinning during PWHT. • Stored strain energy dominates the driving force during PWHT.

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Sharma et al. (2026) studied this question.

synapsesocial.com/papers/6a1a7e9c0307b7850943144d https://doi.org/10.1016/j.matdes.2026.116296

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Linear friction welding of Haynes 282 Ni superalloy

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

Linear friction welding of Haynes 282 Ni superalloy

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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