Effect of conventional and microwave sintering on the properties of yttria alumina garnet-dispersed austenitic stainless steel

S. S. Panda; V. Singh; Anishu Upadhyaya; D. Agrawal

doi:10.1007/BF02586144

Effect of conventional and microwave sintering on the properties of yttria alumina garnet-dispersed austenitic stainless steel

S. S. Panda, V. Singh, Anishu Upadhyaya, D. Agrawal

Materials Research Institute (MRI)

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35 Scopus citations

Abstract

The current study examines the effect of heating mode, temperature, and varying yttria alumina garnet (YAG) addition (5 and 10 wt pct) on the densification and properties of austenitic (316L) stainless steel. The straight 316L stainless steel and 316L-YAG composites were heated in a radiatively heated (conventional) and 2.45 GHz microwave sintering furnace. The compacts were consolidated through solid state as well as supersolidus sintering at 1200 °C and 1400 °C, respectively. Both 316L and 316L-YAG compacts couple with microwaves and heat to the sintering temperature rapidly (∼45 °C/min). The overall processing time was reduced by about 90 pct through microwave sintering. As compared to conventional sintering, compacts sintered in microwaves exhibit higher densification and finer microstructure but no corresponding improvement in mechanical properties and wear resistance. This has been correlated to elongated, irregular pore structure in microwave-sintered compacts.

Original language	English (US)
Pages (from-to)	2253-2264
Number of pages	12
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	37
Issue number	7
DOIs	https://doi.org/10.1007/BF02586144
State	Published - Jul 2006

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys

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10.1007/BF02586144

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title = "Effect of conventional and microwave sintering on the properties of yttria alumina garnet-dispersed austenitic stainless steel",

abstract = "The current study examines the effect of heating mode, temperature, and varying yttria alumina garnet (YAG) addition (5 and 10 wt pct) on the densification and properties of austenitic (316L) stainless steel. The straight 316L stainless steel and 316L-YAG composites were heated in a radiatively heated (conventional) and 2.45 GHz microwave sintering furnace. The compacts were consolidated through solid state as well as supersolidus sintering at 1200 °C and 1400 °C, respectively. Both 316L and 316L-YAG compacts couple with microwaves and heat to the sintering temperature rapidly (∼45 °C/min). The overall processing time was reduced by about 90 pct through microwave sintering. As compared to conventional sintering, compacts sintered in microwaves exhibit higher densification and finer microstructure but no corresponding improvement in mechanical properties and wear resistance. This has been correlated to elongated, irregular pore structure in microwave-sintered compacts.",

author = "Panda, {S. S.} and V. Singh and Anishu Upadhyaya and D. Agrawal",

note = "Funding Information: The authors gratefully acknowledge the financial support from the Department of Science and Technology (DST) and the Ministry of Human Resource and Development (MHRD, India). The microwave sintering experiments were conducted at the Microwave Research Center, Penn Sate University, through partial financial support from the United States Department of Energy (Grant No. DE-FC26-02NT41662). One of the authors (AU) gratefully acknowledges the assistance provided by Dr. G. Wilde, Institute for Nanotechnology (INT, Karlsruhe, Germany), in conducting the DSC analysis.",

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Effect of conventional and microwave sintering on the properties of yttria alumina garnet-dispersed austenitic stainless steel. / Panda, S. S.; Singh, V.; Upadhyaya, Anishu et al.
In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 37, No. 7, 07.2006, p. 2253-2264.

Research output: Contribution to journal › Article › peer-review

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T1 - Effect of conventional and microwave sintering on the properties of yttria alumina garnet-dispersed austenitic stainless steel

AU - Panda, S. S.

AU - Singh, V.

AU - Upadhyaya, Anishu

AU - Agrawal, D.

N1 - Funding Information: The authors gratefully acknowledge the financial support from the Department of Science and Technology (DST) and the Ministry of Human Resource and Development (MHRD, India). The microwave sintering experiments were conducted at the Microwave Research Center, Penn Sate University, through partial financial support from the United States Department of Energy (Grant No. DE-FC26-02NT41662). One of the authors (AU) gratefully acknowledges the assistance provided by Dr. G. Wilde, Institute for Nanotechnology (INT, Karlsruhe, Germany), in conducting the DSC analysis.

PY - 2006/7

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N2 - The current study examines the effect of heating mode, temperature, and varying yttria alumina garnet (YAG) addition (5 and 10 wt pct) on the densification and properties of austenitic (316L) stainless steel. The straight 316L stainless steel and 316L-YAG composites were heated in a radiatively heated (conventional) and 2.45 GHz microwave sintering furnace. The compacts were consolidated through solid state as well as supersolidus sintering at 1200 °C and 1400 °C, respectively. Both 316L and 316L-YAG compacts couple with microwaves and heat to the sintering temperature rapidly (∼45 °C/min). The overall processing time was reduced by about 90 pct through microwave sintering. As compared to conventional sintering, compacts sintered in microwaves exhibit higher densification and finer microstructure but no corresponding improvement in mechanical properties and wear resistance. This has been correlated to elongated, irregular pore structure in microwave-sintered compacts.

AB - The current study examines the effect of heating mode, temperature, and varying yttria alumina garnet (YAG) addition (5 and 10 wt pct) on the densification and properties of austenitic (316L) stainless steel. The straight 316L stainless steel and 316L-YAG composites were heated in a radiatively heated (conventional) and 2.45 GHz microwave sintering furnace. The compacts were consolidated through solid state as well as supersolidus sintering at 1200 °C and 1400 °C, respectively. Both 316L and 316L-YAG compacts couple with microwaves and heat to the sintering temperature rapidly (∼45 °C/min). The overall processing time was reduced by about 90 pct through microwave sintering. As compared to conventional sintering, compacts sintered in microwaves exhibit higher densification and finer microstructure but no corresponding improvement in mechanical properties and wear resistance. This has been correlated to elongated, irregular pore structure in microwave-sintered compacts.

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Effect of conventional and microwave sintering on the properties of yttria alumina garnet-dispersed austenitic stainless steel

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