Effects of sintering temperature to the mechanical properties and microstructures of Fe 67 Cr 22 Al 11 powder compacts

• Main Authors: Rahman M.M., Namasivayam D., Rahman H.Y.
• Other Authors: 55328831100
• Format: Article
• Published: Microscopy Society of Malaysia 2023

This paper presents an experimental investigation on the effects of sintering temperature to the mechanical properties and microstructures of FeCrAl powder compacts formed through warm powder compaction route. Elemental iron powder ASC 100.29, copper and aluminum powder were blended mechanically in a low speed mixer. The blended powder mass was compacted at a temperature of 200�C and was later sintered in an argon gas fired furnace by varying the sintering temperature, i.e., 600�C, 750�C and 900�C for 90 minutes. The sintered products were then subjected to density measurement, flexure strength measurement as well as microstructure analysis through scanning electron microscopy. The results revealed that the suitable sintering temperature is 600�C which generated light weight products with higher bending strength, lower volumetric expansion, and better microstructure. � 2019, Microscopy Society of Malaysia. All rights reserved.