Heat Treatment Effect on the Mechanical Properties of AlSi10Mg Produced by Selective Laser Melting


Mudda Nirish*, R. Rajendra


Department of Mechanical Engineering, University College of Engineering (A), Osmania University, Telangana, India.

Corresponding Author Email: [email protected]

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Selective laser melting (SLM) is one of the laser powder bed fusion (LPBF) methods, and parts are built up layer by layer during the melting process. The SLM additive manufacturing was used to produce light-weight parts for the automotive and aerospace industries. The main aim of the research is to improve the mechanical properties and compare them with those of conventionally cast Al6061alloy. In this work investigated mechanical properties like tensile strength, yield strength, and elongation of SLM produced by AlSi10Mg alloy. The conducted tests (conversional and SLM parts) were built in build con dition (room temperature) and preheated to 2000C/2 hrs. It is shown that AlSi10Mg parts were given better results compared with conventionally cast Al6061. The SLM-AlSi10mg alloy mechanical properties (as built at room temperature and preheated to 2000C/2 hrs condition) of tensile strength increased from 333 to 342 MPa, yield strength from 79 to 121 MPa, elongation of 5.56 to 10.33%, and hardness 125±5 to 129±5 HV with a high density of 2.66 (99.6%).