Effect of Rare Earth Metals on Microstructure and Impact Property of Duplex Stainless Steel

Xiao Liu; Jing Long Liang

doi:10.4028/www.scientific.net/AMR.662.424

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 662Effect of Rare Earth Metals on Microstructure and...

Effect of Rare Earth Metals on Microstructure and Impact Property of Duplex Stainless Steel

Abstract:

The effect of rare earth element on structure and mechanical properties of 2205 duplex stainless steel were studied by metallographic examination, scanning electron microscope (SEM), tensile test and impact test. The results show that the proper amount of rare earth can refine microstructure of 2205 duplex stainless steel. Fracture is changed from cleavage to ductile fracture by adding RE to 2205 duplex stainless steel. 2205 duplex stainless steel containing 0.05% RE can improve its impact toughness, and the transverse impact toughness is increased 15.56% at -20°C respectively comparing with that of 2205 duplex stainless steel without RE.

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Periodical:

Advanced Materials Research (Volume 662)

Pages:

424-427

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.662.424

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Online since:

February 2013

Authors:

Xiao Liu, Jing Long Liang

Keywords:

Duplex Stainless Stee, Mechanical Property, Microstructure, Rare Earth (RE)

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