Characterization of the Impact Strength in Cryogenic Treatment of TIG Welded Nickel-based Superalloy

P K Mandal; Amal Michael Saji; Akash Kurian Lalu; Manu M Jacob

International Journal of Composite Materials and Matrices

Characterization of the Impact Strength in Cryogenic Treatment of TIG Welded Nickel-based Superalloy

Abstract

The TIG welding of the IN617 heat and oxidation resistant has been precisely controlled through welding parameters, while γ'-Ni3(Al, Ti) phases predominantly controlled solution strengthening, and precipitation strengthening and carbides in γ matrix, as well as γ' precipitate’s shearing mechanism is prominent to enhance strength of superalloys. The high hardness has been preserved owing to strengthening major elements such as Cr, Co, and Mo etc., and the well coherency maintain between coarse carbides (M23C6), γ' phases and the γ matrix. The CVN impact test was carried out at different ranges from -100℃ to -196℃ with variable dipping times in controlled cryogenic chamber and subsequently at room temperature. The impact strength is interestingly obtained at room temperature of 1.81 J/mm2 and at cryogenic treatment of 1.13 J/mm2 as AW condition. The rapid hardening effects and inherent segregation mechanism of coarse carbides on the grain boundaries are significantly declined impact toughness in cryogenic treatment with varying dipping time. The mechanical properties of TIG welded superalloy are obtained likely to UTS of 391.66 MPa, YS of 347.66 MPa, ductility of 8.94%, RA of 7.90%, and YS/UTS ratio of 0.89, and measured 247.5±10.6HV in RZ after PWHT at 500°C for 4h, and also ultimate heat input energy 9.12 kJ/mm (η~70%) of similar butt-welded joint. Microstructural studies and several characterizations have been also examined meticulously to investigate and correlate the structural changes of mechanical properties and SEM fractography analysis in cryogenic treatment alloy.

Full text

The full text of this article is available to subscribers.

On a subscribing campus you are let in by network address, with no login at all.

One-off purchase. Permanent access to this article, no account needed.

A year of online access to every article in International Journal of Composite Materials and Matrices. Or choose several journals →

How to cite

P K Mandal, Amal Michael Saji, Akash Kurian Lalu, Manu M Jacob. Characterization of the Impact Strength in Cryogenic Treatment of TIG Welded Nickel-based Superalloy. International Journal of Composite Materials and Matrices. 2024;9(2):1–12.

Download the citation:

Article details

Characterization of the Impact Strength in Cryogenic Treatment of TIG Welded Nickel-based Superalloy

Abstract

Read more of it

Publish your article

Abstract

Related articles

Advanced Magnesium-Based Metallic GlassComposites for Biomedical Implant Applications: AMachine-Learning-Informed Approach

Revolutionizing Bone Grafting: A Survey of 3D Printed Solutions

Virgin-Recycled Thermoplastic Matrix Systems as Engineered Composite Materials: A Compositional Framework for Mechanical Property Retention in Secondary Polymer Supply Chains

A review on Biochar and its Nanocomposites for Removal of Toxics from Wastewater

Mechanical and Thermal Characterization of Natural Fiber-Reinforced Epoxy Composites for Structural Applications

Catalytic Applications of Carbon Nanodots

Read more of it

Publish your article