Effect of Rare Earth on Microstructure and Mechanical Property of Ferrite Stainless Steel

Abstract:

The effect of rare earth element on structure and mechanical properties of the 430 ferrite stainless steel was studied by metallographic examination, scanning electron microscope (SEM), tensile test and impact test. The results show that the proper amount of RE can refine microstructure of 430 ferrite stainless steel. The fracture mode of 430 ferrite stainless steel is typical dimple fracture. 430 ferrite stainless steel containing 0.056% RE can improve its impact toughness and the high temperature strength, and the transverse impact toughness increases 37.2% at 253K respectively comparing with that of 430 ferrite stainless steel without RE. And at 1273K, the high temperature strength increases by 38.3% than that of 430 ferrite stainless steel without RE.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 110-113
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.110
• Online since: May 2013
• Authors: Xiao Liu, Hong Wang Dong
• Keywords: Ferrite Stainless Steel, Mechanical Property, Microstructure, Rare Earth (RE)

References

[1] Y Takayuki, A Masayuki, N Masaki, U Yoshihiko, T Keiro: Procedia Engineering, Vol. 2 (2010), p.275.

[2] N Fujita, K Ohmura, A Yamamoto: Mat. Sci. Eng.: A, Vol.351 (2003), p.272.

[3] X Wang, H Ishii, K Sato: JSAE Review, Vol. 24 (2003), p.295.

[4] O Daehee, H Kyutae, H Seunggab, L Changhee: Procedia Engineering, Vol.10 (2011), p.383.

[5] Lixin Wang, Changjiang Song, Fengmei Sun, Lijuan Li, Qijie Zhai: Materials and Design, Vol. 30 (2009), p.49.

[6] Hoon-Hwe Cho, Heung Nam Han, Sung-Tae Hong, Jong-Hwan Park, Yong-Jai Kwon, Seok-Hyun Kim, Russell J. Steel: Mat. Sci. Eng.: A, Vol. 528 (2011) 2889

[7] Caixia Shi, Guoguang Cheng, Zhanjun Li, Pei Zhao: Journal of Iron and Steel Research, International, Vol.15 (2008), p.57.

[8] M V Warmelo, D Nolan, J Norrish: Mat. Sci. Eng.: A, Vol. 464 (2007), p.157.