An investigation on effect of heating mode and temperature on sintering of Fe-P alloys

作者：Muthuchamy A; Kumar Rajiv; Annamalai A Raja^*; Agrawal Dinesh K; Upadhyaya Anish

来源：Materials Characterization, 2016, 114: 122-135.

DOI：10.1016/j.matchar.2016.02.015

• Fe-P alloys
• Microwave
• Sintering
• Densification
• Microstructure
• Phase composition

The present study examines the effect of sintering temperature and heating mode on densification, microstructure and mechanical properties of Fe-P alloys. The green compacts were heated conventionally and in microwave under 95%N-2-5%H-2 (forming gas) at 1120 degrees C and 1250 degrees C for 60 min. Both the compositions (Fe-1.5P and Fe-3P in wt%) were found to couple well in microwave field with rapid heating (similar to 40 degrees C min(-1)) and resulted in reduction of overall processing time by about 90% in comparison of conventional heating. Microwave sintering resulted in higher densification in case of Fe-P alloys. Moreover, an important feature of microwave and conventionally sintered samples was that their microstructures exhibited distinctly rounded pores. This resulted into improved corrosion and mechanical properties in general.

• 出版日期2016-4