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Effect of particle size and heating rate in microwave sintering of 316L stainless steel

Title data

Ertugrul, O. ; Park, Ho-Seon ; Onel, K. ; Willert-Porada, Monika:
Effect of particle size and heating rate in microwave sintering of 316L stainless steel.
In: Powder Technology. Vol. 253 (February 2014) . - pp. 703-709.
ISSN 0032-5910
DOI: https://doi.org/10.1016/j.powtec.2013.12.043

Official URL: Volltext

Abstract in another language

The work evaluates the effect of heating rate in microwave sintering, and the effect of particle size of 316L powders in microwave and conventional sintering processes. The powders of 316L stainless steel were compacted by uniaxial press at 700 MPa, and sintered at 1250 °C for 1 h by means of conventional sintering and microwave sintering. The sintering atmospheres were Ar/H2 95/5% for conventional sintering and Ar/H2 90/10% for microwave sintering. Mechanical properties were evaluated using tensile tests. The samples were characterized by optical microscopy and SEM. The porosity levels were determined using image analysis software. Microwave sintering yields fully recrystallized microstructure different from conventional sintering, however no difference in distribution and shape of pores was noticed. Heating rate in microwave sintering affects densification, tensile strength and elongation. Moreover, the use of fine powders improves physical and mechanical properties of the samples sintered by both methods.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: 316L; Heating rate; Mechanical properties; Microwave sintering; Particle size
Institutions of the University: Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Ehemalige Professoren
Faculties > Faculty of Engineering Science > Chair Materials Processing
Faculties > Faculty of Engineering Science > Ehemalige Professoren > Chair Materials Processing - Univ.-Prof. Dr. Monika Willert-Porada
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Research Institutions
Research Institutions > Research Units
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 500 Natural sciences
600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 13 Feb 2015 15:56
Last Modified: 28 Feb 2019 10:34
URI: https://eref.uni-bayreuth.de/id/eprint/6728