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Title:
HIGH-HARDNESS ATOMIZED POWDER, POWDER FOR PROJECTING MATERIAL FOR SHOT PEENING, AND SHOT PEENING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2012/128357
Kind Code:
A1
Abstract:
Disclosed is a high-hardness atomized powder containing, in mass%, 2-8% of B, at least one element selected from Ti, Cr, Mo, W, Ni, Al and C in the amount fulfilling the formula 0 ≤ (Ti%/10)+(Cr%/25)+(Mo%/10)+(W%/6)+(Ni%/10)+(Al%/10)+(C%/1) ≤ 1.00, and a remainder made up by Fe and unavoidable impurities, and having a particle diameter of 75 μm or less. The powder has high hardness, is inexpensive, and is suitable particularly as a powder for a projecting material for shot peening.

Inventors:
SAWADA TOSHIYUKI (JP)
Application Number:
PCT/JP2012/057546
Publication Date:
September 27, 2012
Filing Date:
March 23, 2012
Export Citation:
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Assignee:
SANYO SPECIAL STEEL CO LTD (JP)
SAWADA TOSHIYUKI (JP)
International Classes:
C22C38/00; B22F1/00; B22F9/08; B24C1/10; B24C11/00
Foreign References:
JP2007084858A2007-04-05
Other References:
J.A. JIMENEZ ET AL.: "Characterization of rapidly solidified ultrahigh boron steels", MATERIALS SCIENCE AND ENGINEERING, vol. 159, no. 1, 15 December 1992 (1992-12-15), pages 103 - 109, XP024167670, DOI: doi:10.1016/0921-5093(92)90403-N
Attorney, Agent or Firm:
KATSUNUMA Hirohito et al. (JP)
Katsunuma Hirohito (JP)
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Claims: