Title:
改善された耐摩耗性合金
Document Type and Number:
Japanese Patent JP2008518099
Kind Code:
A
Abstract:
A wear resistant, high chromium white iron, in an unheat-treated condition has a microstructure substantially comprising austenite and M7C3 carbides. The white iron contains at least one martensite promoter and at least one austenite stabilizer which are present at respective levels to achieve a balance between their effects whereby the white iron has a microstructure characterized by at least one of: i) being substantially free of martensite at interfaces between the austenite and M7C3 carbides; and ii) having a relatively low level of interconnectivity between carbide particles; such that the white iron is substantially crack-free. The white iron may be as-cast or comprise weld deposited hardfacing.
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Inventors:
Powell, Graham Leonard Fraser
Application Number:
JP2007538215A
Publication Date:
May 29, 2008
Filing Date:
October 27, 2004
Export Citation:
Assignee:
GLOBAL TOUGH ALLOYS PTY LTD
International Classes:
C22C37/08; B22D27/20; C22C33/08; C22C37/06; C22C37/10; B23K9/04; B23K35/32
Domestic Patent References:
| JPH08510298A | 1996-10-29 | |||
| JPS60501460A | 1985-09-05 |
Attorney, Agent or Firm:
Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Nobuo Arakawa
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Nobuo Arakawa