Cladding and method for manufacturing the same
AssigneeAsahi Kasei Kabushiki Kaisha
InventorsNaoyuki Wada, Yoshinori Yamada
Life of this patent
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Abstract
Cladding in which at least two layers of alloys are joined, the cladding having high wear resistance, high workability, and excellent strength at the joining interface of the alloys. The cladding is composed of two or more layers including a first alloy and a second alloy joined to the first alloy. The hardness of the second alloy of the cladding is greater than that of the first alloy, and the difference in hardness between the first alloy and the second alloy is at least HRC 44. When a shearing test based on JIS G 0601 is performed on the cladding, the breakage is on the first alloy side.
Claims13
A cladding, comprising two or more layers including a first alloy and a second alloy bonded to the first alloy,
- wherein the second alloy has a hardness greater than that of the first alloy, the difference in the hardness between the first alloy and the second alloy is HRC 44 or more, and when a shear test in accordance with JIS G 0601 is performed on the cladding, breakage occurs on a first alloy side,
- wherein the second alloy is thinner than the first alloy, and
- wherein the second alloy is selected from SKD61, SKD1, SUS420J2 or NCF718.
A method for the production of a cladding, comprising:
- bonding a first alloy and a second alloy thinner than the first alloy by explosive welding, wherein the second alloy is selected from SKD61, SKD1, SUS420J2 or NCF718, and
- subjecting the bonded second alloy to quenching and tempering heat treatment to harden the second alloy, such that the second alloy has a hardness greater than that of the first alloy and the difference in the hardness between the first alloy and the second alloy is HRC 44 or more.
Dependencies are inferred from the claim text.