Annealing-induced Grain Refinement in a Nanostructured Ferritic Steel

材料科学技术（英）, 2012, 28(1): 41-45.

Annealing-induced Grain Refinement in a Nanostructured Ferritic Steel

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1.Sheng Guo and Ke Lu Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China

2.Sheng Guo and Ke Lu Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China

3.Sheng Guo and Ke Lu Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China

4.Sheng Guo and Ke Lu Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China

关键词：英文摘要 , 材料科学 , 优秀论文 , 科技学报

Annealing-induced Grain Refinement in a Nanostructured Ferritic Steel

Keywords： Nanostructured , Surface mechanical attrition treatment (SMAT) , Ferritic steel , Grain refinement

A nanostructured surface layer with a mean ferrite grain size of -8 nm was produced on a Fe-gCr steel by means of surface mechanical attrition treatment. Upon annealing, ferrite grains coarsen with increasing temperature and their sizes increase to -40 nm at 973 K. Further increasing annealing temperature leads to an obvious reduction of ferrite grain sizes, to -14 nm at 1173 K. The annealing-induced grain refinement is analyzed in terms of phase transformations in the nanostructured steel.

参考文献

[1]	T.R.MALOW;C.C.KOCH .GRATN GROWTH IN NANOCRYSTALLINE IRON PREPARED BY MECHANICAL ATTRITION[J].Acta materialia,1997(5):2177-2186.
[2]	F. Zhou;J. Lee;S. Dallek .High grain size stability of nanocrystalline Al prepared by mechanical attrition[J].Journal of Materials Research,2001(12):3451-3458.
[3]	Y.S. Li;Y. Zhang;N.R. Tao .Effect of thermal annealing on mechanical properties of a nanostructured copper prepared by means of dynamic plastic deformation[J].Scripta materialia,2008(4):475-478.
[4]	K. Lu;J. Lu .Nanostructured surface layer on metallic materials induced by surface mechanical attrition treatment[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2004(0):38-45.
[5]	L.M. Wang;Z.B. Wang;K. Lu .Grain size effects on the austenitization process in a nanostructured ferritic steel[J].Acta materialia,2011(9):3710-3719.
[6]	Z.B. Wang;J. Lu;K. Lu .Chromizing behaviors of a low carbon steel processed by means of surface mechanical attrition treatment[J].Acta materialia,2005(7):2081-2089.
[7]	D.Z. Li;N.M. Xiao;Y.J. Lan .Growth modes of individual ferrite grains in the austenite to ferrite transformation of low carbon steels[J].Acta materialia,2007(18):6234-6249.
[8]	N. Tsuji;T. Maki .Enhanced structural refinement by combining phase transformation and plastic deformation in steels[J].Scripta materialia,2009(12):1044-1049.
[9]	R. Ueji;N. Tsuji;Y. Minamino .Ultragrain refinement of plain low carbon steel by cold-rolling and annealing of martensite[J].Acta materialia,2002(16):4177-4189.
[10]	N. Tsuji;R. Ueji;Y. Minamino .A new and simple process to obtain nano-structured bulk low-carbon steel with superior mechanical property[J].Scripta materialia,2002(4):305-310.
[11]	H.K.D.H. Bhadeshia.Properties of fine-grained steels generated by displacive transformation[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2008:36-39.

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