| (19) |
 |
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(11) |
EP 3 042 975 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
03.08.2016 Bulletin 2016/31 |
| (43) |
Date of publication A2: |
|
13.07.2016 Bulletin 2016/28 |
| (22) |
Date of filing: 07.01.2016 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
|
Designated Extension States: |
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BA ME |
|
Designated Validation States: |
|
MA MD |
| (30) |
Priority: |
09.01.2015 JP 2015002935
|
| (71) |
Applicant: Seiko Epson Corporation |
|
Tokyo 163 (JP) |
|
| (72) |
Inventors: |
|
- Tamura, Takayuki
Aomori, 039-1161 (JP)
- Nakamura, Hidefumi
Aomori, 039-1161 (JP)
|
| (74) |
Representative: Hoffmann Eitle |
|
Patent- und Rechtsanwälte PartmbB
Arabellastraße 30
81925 München
81925 München (DE) |
|
| |
|
| (54) |
METAL POWDER FOR POWDER METALLURGY, COMPOUND, GRANULATED POWDER, AND SINTERED BODY |
(57) A metal powder for powder metallurgy according to the invention contains Fe as a
principal component, Cr in a proportion of 10 to 30 mass%, C in a proportion of 0.15
to 1.5 mass%, Si in a proportion of 0.3 to 1 mass%, and Mn and Ni in a total proportion
of 0.05 to 1.6 mass%, wherein when one element selected from the group consisting
of Ti, V, Y, Zr, Nb, Hf, and Ta is defined as a first element, and one element selected
from the group and having a larger group number in the periodic table than that of
the first element or having the same group number in the periodic table as that of
the first element and a larger period number than that of the first element is defined
as a second element, the first element is contained in a proportion of 0.01 to 0.5
mass%, and the second element is contained in a proportion of 0.01 to 0.5 mass%.