Title:
IRON-BASED ALLOY SINTERED BODY AND IRON-BASED MIXED POWDER FOR POWDER METALLURGY
Document Type and Number:
WIPO Patent Application WO/2020/241087
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an iron-based alloy sintered body which has a tensile strength of at least 800 MPa and has an excellent cutting property. The iron-based alloy sintered body according to the present invention has a microstructure having a Vickers hardness average value of 300-900 Hv and a Vickers hardness standard deviation of at most 200 Hv, wherein the average circularity of pores is at least 0.30.
Inventors:
NASU NAO (JP)
TAKASHITA TAKUYA (JP)
KOBAYASHI AKIO (JP)
TAKASHITA TAKUYA (JP)
KOBAYASHI AKIO (JP)
Application Number:
PCT/JP2020/016187
Publication Date:
December 03, 2020
Filing Date:
April 10, 2020
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B22F1/00; C22C33/02; C22C38/00
Foreign References:
| JPS63235403A | 1988-09-30 | |||
| JP2013204112A | 2013-10-07 | |||
| JP2010529302A | 2010-08-26 | |||
| JP2011122198A | 2011-06-23 |
Other References:
See also references of EP 3978165A4
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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