Nickel-based solder alloy
AssigneeMTU Aero Engines AG
InventorsMarkus Waltemathe, Frank Seidel, Jürgen Rösing, Harald Krappitz
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Abstract
Solder alloy based on nickel is composed of a mixture with a first soldering material, a second soldering material, and a base material, wherein the base material is a nickel-based material which corresponds to the material to be soldered and is present in a proportion of 45-70% by weight in the mixture, the first soldering material is a nickel-based material including chromium, cobalt, tantalum, aluminum and boron, and is present in a proportion of 15-30% by weight in the mixture, and the second soldering material is a nickel-based material including chromium, cobalt, molybdenum, tungsten, boron and hafnium, and is present in a proportion of 15-25% by weight in the mixture.
Claims8
Method for producing a solder alloy for soldering a component made of a nickel-based material in which nickel is the largest alloy component by weight, the method comprising the following steps:
- providing three components composed of a first soldering material, a second soldering material, and a base material, wherein
- the base material is a nickel-based powder material, which has the same composition as the nickel-based material of the component to be soldered and is present in a proportion of 45-70% by weight in the total weight of the three components,
- the first soldering material is a nickel-based powder material which has nickel as the largest alloy component by weight and further comprises chromium, cobalt, tantalum, aluminum and boron and is present in a proportion of 15-30% by weight in the total weight of the three components, and
- the second soldering material is a nickel-based powder material which has nickel as the largest alloy component by weight and further comprises chromium, cobalt, molybdenum, tungsten, boron and hafnium and is present in a proportion of 15-25% by weight in the total weight of the three components,
- wherein both the chromium content and also the cobalt content are higher in the case of the first soldering material than in the case of the second soldering material, and
- mixing together the base material powder, the first soldering material powder and the second soldering material powder, thereby forming the solder alloy in a powder form.
Dependencies are inferred from the claim text.