Title:
鉄基焼結合金、鉄基焼結合金の製造方法およびコンロッド
Document Type and Number:
Japanese Patent JP5110398
Kind Code:
B2
Abstract:
A ferrous sintered alloy includes a sintered raw-material powder that is made of an Fe—Cr—Mo-system powder, a carbon-system powder and an Mn—Si-system powder before sintering. The ferrous sintered alloy exhibits a density of 7.4 g/cm3 or more, and has a metallic structure that includes martensite and bainite. In the metallic structure, the martensite accounts for an area proportion of 40% or less when the entirety of the metallic structure is taken as 100% by area. Moreover, the martensite exhibits a particle diameter of 20 μm or less. The ferrous sintered alloy is good in terms of machinability.
Inventors:
Mikio Kondo
Kenbu Miyake
Kimihiko Ando
Nobuhiko Matsumoto
Hanzawa Hideo
Kenbu Miyake
Kimihiko Ando
Nobuhiko Matsumoto
Hanzawa Hideo
Application Number:
JP2009135668A
Publication Date:
December 26, 2012
Filing Date:
June 05, 2009
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
C22C38/00; C22C33/02; F16C7/00
Domestic Patent References:
| JP2008231538A | ||||
| JP2005336608A | ||||
| JP2007533857A | ||||
| JP2010133016A |
Attorney, Agent or Firm:
Hiroshi Okawa