Ni—Fe—Cr alloy and engine valve welded with the same alloy
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United States of America Patent
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May 17, 2016
Grant Date -
Jun 4, 2015
app pub date -
Oct 15, 2012
filing date -
Nov 28, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A hard-facing alloy having impact resistance, wear resistance and hot corrosion resistance and containing Fe which is a bountiful resource and inexpensive is provided. Provided are: a Ni—Fe—Cr alloy containing 0 to 20.0 mass % of Mo, 8.0 to 40.0 mass % of W, 20.0 to 40.0 mass % of a total amount of Mo and W, 20.0 to 50.0 mass % of Fe, 12.0 to 36.0 mass % of Cr and 1.0 to 2.5 mass % of B, and the remainder being Ni and unavoidable impurities; and an engine valve welded with the same alloy. The above Ni—Fe—Cr alloy can further contain 15 mass % or less of a total amount of elements selected from Co, Mn, Cu, Si and C, in such cases, 15.0 mass % or less of Co, 5.0 mass % or less of each of Mn and Cu, 2.0 mass % or less of Si and 0.5 mass % or less of C are preferred.
First Claim
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International Classification(s)
- C23C:COATING METALLIC MATERIAL; COATING MATERIAL WITH M....
- F01L:CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINE....
- B23K:SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLA....
- B22F:WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES F....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
- C22C:ALLOYS
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