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Articles

Vol. 2 No. 2 (2015)

Synthesis of the SUS 316L Powders with a Nano-Meso Bi-Modal Structure

DOI
https://doi.org/10.15377/2410-4701.2015.02.02.2
Submitted
September 26, 2015
Published
2021-11-24

Abstract

Pure stainless steel (SUS 316L) powders with both a nano-grain and micro-structure were prepared using a mechanical milling process. The bimodal microstructure consists of a nano-grain with a size of 50 nm in the surface region and microstructure in the core of the particle. The nano-grain with a bcc structure at the surface and the microstructure of fcc in the core of the particles were prepared by milling at 150rpm for 9h, and those compositions were 14.39% for the nano structure and 85.61% for the micro structure, respectively. Spark plasma sintering (SPS) was carried out for the compaction of the powders. The compacts forming powders with a bi-modal structure have a mesoscopic structure.

References

  1. Sekiguchi T, Ono K, Fujiwara H and Ameyama K. Mater Trans 2010; 51: 39. http://dx.doi.org/10.2320/matertrans.MB200913
  2. Ameyama K. Scripta Mater 1998; 38: 517. http://dx.doi.org/10.1016/S1359-6462(97)00465-X
  3. Ma E. Scripta Mater 2003; 49: 663. http://dx.doi.org/10.1016/S1359-6462(03)00396-8
  4. Alexandrov IV and Valiev RZ. Scripta Mater 2001; 44: 1605. http://dx.doi.org/10.1016/S1359-6462(01)00783-7
  5. Mohamed FA. Acta Mater 2003; 51: 4107. http://dx.doi.org/10.1016/S1359-6454(03)00230-1
  6. Umemoto M. Mater Trans 2003; 44: 1900. http://dx.doi.org/10.2320/matertrans.44.1900
  7. Fujiwara H, Sekiguchi T and Ameyame K. Int J mater Res 2009; 100: 796. http://dx.doi.org/10.3139/146.110116
  8. Sasaki TT, Mukai T and Hono K. Scripta Mater 2007; 57: 189. http://dx.doi.org/10.1016/j.scriptamat.2007.04.010
  9. Wang L, Zhang J and Jiang W. Int J Refrac Metals and hard Mater 2013; 39: 103.
  10. Fujiwara H, Akada R, Noro A, Yoshita Y and Ameyama K. Mater Trans 2008; 49: 90. http://dx.doi.org/10.2320/matertrans.ME200703
  11. Uhm YR, Lee GH, Park JH, Kim WW and Rhee CK. Mater Sci Forum 2004; 449-452: 1129-1132. http://dx.doi.org/10.4028/www.scientific.net/MSF.449- 452.1129
  12. Fujiwara H, Nakatani M, Yoshida T, Zhang Z and Ameyama K. Mater Sci Forum 2008; 584-586: 55. http://dx.doi.org/10.4028/www.scientific.net/MSF.584-586.55
  13. Srinivasarao B, Oh-ishi K, Ohkubo T, Mukai T and hono K. Scrip Mater 2006; 54: 1827.
  14. Oh-ishi K, Zhang HW, Ohkubo T, Hono K. Mater Sci Eng A 2007; 456: 20. http://dx.doi.org/10.1016/j.msea.2006.12.002
  15. Lee HM, Uhm YR, Rhee CK. Journal of Alloys and Compounds 2008; 461: 604. http://dx.doi.org/10.1016/j.jallcom.2007.07.075
  16. Uhm YR, Kim WW, Kim SJ, Kim CS and Rhee CK. J Appl Phys 2003; 93: 7196. http://dx.doi.org/10.1063/1.1558234