Project 77: Study on the Microstructure and Mechanical Properties of the Laser Additive Manufactured CrCoNi Medium Entropy Alloy
Contact Information:
Assoc. Prof. Kai Feng
Email: fengkai@sjtu.edu.cn
Project Description and Objectives:
Equiatomic CrCoNi medium entropy alloy (MEA) has excellent cryogenic mechanical properties, including high strength and toughness. It approaches the best combinations of strength, ductility and toughness on record. These advantages endow its great potential in cryogenic extremes, such as in the aerospace and petrochemical industry. In this project, we will use selective laser melting and one of the laser additive manufacturing technologies to fabricate the CrCoNi MEA build. Its microstructure and mechanical properties with different fabrication parameters will also be investigated.
Eligibility Requirements:
Should have solid background knowledge in materials science, solidification, mechanics of metallic materials, etc.
Should have knowledge about selective laser melting.
Candidates who have related experience are preferred.
Should be familiar with various materials characterization and test methods.
Main Tasks:
Explore the optimal parameters to fabricate the CrCoNi MEA build by selective laser melting.
Observe the microstructure and test the mechanical properties (including cryogenics) of selective laser melted CrCoNi MEA samples.
Correlate the parameters, microstructure, and mechanical properties.
Reveal the deformation mechanism of selective laser melted CrCoNi MEA (especially in the cryogenic temperature).
Website:
School: http://smse.sjtu.edu.cn