SINTEF, Norway
Kai Zhang
Biography
Dr. Kai Zhang is a senior research scientist working at SINTEF, Norway. His main research fields are physical metallurgy of aluminium alloys and metal additive manufacturing. Dr. Zhang has been working on improving printability of high strength aluminium alloys, and also developing novel aluminium alloys for the PBF-LB in the recent years.
Conferences
Room |
Date |
Hour |
Subject |
|---|---|---|---|
| Room 7 |
25-03-2026 |
5:00 pm – 5:20 pm |
78 A Novel Aluminium Alloy Developed for Additive Manufacturing with Superior Properties at Elevated Temperatures |
Conferences Details
78 A Novel Aluminium Alloy Developed for Additive Manufacturing with Superior Properties at Elevated Temperatures
A novel aluminium alloy with superior thermal stability at elevated temperature is developed for metal additive manufacturing. Matal powder of this new AlSiFeMn alloy was produced with gas atomization. Crack-free and highly dense samples were successfully fabricated by the Powder Bed Fusion – Laser Beam method. The as-printed samples were of hardness ~200HV, tensile strength ~400MPa with fracture elongation ~1.0%. Annealing at 350oC, the hardness dropped to 140HV after 4 hours and kept stable AT 24hours. The tensile strength after 24h@350oC was ~400MPa with fracture elongation increased to 3.5%. The ability to maintain high hardness and strength after high temperature soaking render this novel alloy as highly thermal stable, and as a potential alloy for applications at elevated temperatures.
Keywords: Aluminium alloys; PBF-LB; Elevated temperature; Thermal stability
