Mechanical and Microstructural Properties of AL-4008 Produced by Additive Manufacturing Via Liquid Metal Printing
Abstract
Additive manufacturing (AM) applications continue to gain traction as a viable and advantageousmeans of manufacturing compared to traditional manufacturing (TM) techniques. Liquid metal printing is anAM technique in which a metal filament is melted in a nozzle and delivered onto a heated bed, layer bylayer, to build a part. This work studied the mechanical properties and microstructural features of liquidmetal printed Al-4008 by performing tensile and microhardness tests, along with X-ray diffraction (XRD),optical microscopy (OM) and scanning electron microscopy (SEM) analysis. Mechanical properties ofAl-4008 parts produced via liquid metal printing were compared to A356 cast aluminum parts following T6heat treatment. Microhardness tests revealed that the hardness, tensile, and yield strength increase 23 timesafter the solution treatment and artificial aging. Print direction directly affects mechanical properties,specifically tensile strength (UTS) and yield strength.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2022
- Accession Number
- AD1184972
Entities
People
- William C. V Kimberl
Organizations
- Naval Postgraduate School