Austenitic wear resistant steel and method for heat treatment thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 3, 1994
Grant Date -
N/A
app pub date -
Mar 9, 1993
filing date -
Sep 12, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wear resisting steel of the Hadfield-type and method for its production are provided. This iron base alloy contains in its basic composition following alloying carbon, manganese, silicon and optionally chromium, and/or molybdenum, and/or tungsten. The matrix of the steel is formed by the ductile austenite. Carbides appear on the grain boundaries in the form of roundish, hard, separate precipitates. In the grain boundary zone and inside the grains are hard, needle-shaped nitride and carbonitrides to improve the wear resistance especially against abrasive wear. In accordance with the method the steel is solution heat treated at a temperature range below 1100.degree. C. (e.g., 950.degree. to below 1100.degree. C.) so that carbide, nitride and carbonitride precipitates formed in the microstructure following casting are partially but not completely dissolved.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully