Title:
TUNGSTEN MATERIAL
Document Type and Number:
Japanese Patent JP2021143404
Kind Code:
A
Abstract:
To provide an electrode material that is hard to wear.SOLUTION: A tungsten material is a tungsten material that has a tungsten-containing base material 100, and a base material 100-covering covering layer 200 containing tungsten and zirconium and having the content of zirconium of 0.10 mass% or more and 5.00 mass% or less in terms of ZrO2. The thickness of the covering layer is 50 μm or more and 1 mm or less, and the surface hardness of the covering layer is HV340 or more, and the base material is a pure W or W alloy having a total amount of impurities of 0.1 mass% or less.SELECTED DRAWING: Figure 1
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Inventors:
NAKABAYASHI SEIJI
Application Number:
JP2020043840A
Publication Date:
September 24, 2021
Filing Date:
March 13, 2020
Export Citation:
Assignee:
ALLIED MAT CORP
International Classes:
B22F7/00; B22F7/06; C22C32/00
Attorney, Agent or Firm:
Fukami patent office