Tahira Raza

Characterization of Laser Powder Bed Fusion of Nickel-Based Superalloy Haynes 282

Nickel-based superalloy Haynes 282 specimens were manufactured using the Laser Powder Bed Fusion process with a powder layer thickness of 60 and 90...

A numerical model for simulating the effect of strain rate on eutectic band thickness

Large tensile strains acting on the solidifying weld metal can cause the formation of eutectic bands along grain boundaries. These eutectic bands c...

Process Understanding and Weldability of Laser-Powder Bed Fusion Manufactured Alloy 718

Laser-powder bed fusion (L-PBF) is an additive manufacturing (AM) process that involves building components by fusing fine metal powders using lase...

Influence of Heat Treatments on Heat Affected Zone Cracking of Gas Tungsten Arc Welded Additive Manufactured Alloy 718

The weldability of additive manufactured Alloy 718 was investigated in various heat-treated conditions. The microstructure of the base metal was...

Varestraint testing of selective laser additive manufactured alloy 718 : influence of grain orientation

The effect of grain orientation on hot cracking susceptibility of selective laser additive manufactured Alloy 718 was investigated by Varestraint...

Influence of laser exposure time and point distance on 75-μm-thick layer of selective laser melted Alloy 718

A systematic matrix with 25 samples, using five different point distances and five laser exposure times, depositing 75-μm-thick layers of Alloy 718...

Microstructure of Selective Laser Melted Alloy 718 in As-Manufactured and Post Heat Treated Condition

Manufacturing of Alloy 718 with selective laser melting (SLM) process faces several challenges. One of the challenges is the process-induced...

Varestraint weldability testing of additive manufactured alloy 718

The weldability in terms of susceptibility towards hot cracking of selective laser melted (SLM) Alloy 718 was investigated and wrought Alloy 718 wa...

A review of selective laser melting : Process parameters and its influence on microstructure, defects and strength in superalloy Alloy 718.

A review of the effect of selective laser melting process parameters and its influence on microstructure, defects and strength in the iron-nickel based superalloy Alloy 718

This review presents a basic insight into the powder-bed fusion process selective laser melting (SLM), with focus on the microstructure and...