Cracking suppression in powder bed fusion-laser beam of CM247LC Ni-based superalloy

Materials & Design 2026 Open access

Read full text
Authors: Abdulrahman A. Alqarni, Talal T. Alshammari, Mustafa Megahed, Yuanbo Tony Tang, Moataz M. Attallah
DOI: 10.1016/j.matdes.2026.116129
Cited by: 1
References: 42

Abstract

• Achieved virtually crack-free (0.04 mm/mm 2 ) CM247LC without preheating. • Unidirectional scanning yields a twofold smoother surface finish (Ra = 7.39 µm). • 10 × 10 mm 2 island size lowers bulk cooling rate by ∼3×, mitigating thermal stress. • Optimised strategy shifts grain boundaries from HAGBs to LAGBs (

Fields of Study & Subjects

Additive Manufacturing Materials and Processes High Entropy Alloys Studies Laser Material Processing Techniques

Publication details

Journal / source
Materials & Design
Publisher
Elsevier BV
Volume
266
Pages
116129–116129
Publication date
27 April 2026
Language
EN