Abstract: Disclosed is an internal combustion engine component (1) which is made of an aluminum alloy and comprises at least one area (2) that is subjected to a great thermal load during operation of the internal combustion engine. Said area (2) that is subjected to a great thermal load is small compared to the entire component (1) and is provided with an alloy composition which is modified in relation to the entire component (1) in such a way that the area (2) that is subjected to a great thermal load has a greater breaking elongation than the entire component (1).

Abstract: Disclosed is an internal combustion engine component (1) comprising at least one area (4) that is subject to a greater thermal load then another area (5) during operation of the internal combustion engine. The area (4) that is subjected to a greater thermal load is provided with a lower heat expansion coefficient (?2) then the area (5) which is subject to a lower thermal load.

Abstract: Disclosed is an internal combustion engine component (1) which is made of an aluminum alloy and comprises at least one area (2) that is subjected to a great thermal load during operation of the internal combustion engine. Said area (2) that is subjected to a great thermal load is small compared to the entire component (1) and is provided with an alloy composition which is modified in relation to the entire component (1) in such a way that the area (2) that is subjected to a great thermal load has a greater breaking elongation than the entire component (1).

Abstract: A valve seat for a cylinder head of an internal combustion engine includes an additional material fused to the base material of the cylinder head. The additional material includes at least two layers above one another, the inner layer, facing the cylinder head, having good joining properties with respect to the base material of the cylinder head, and the outer layer, remote from the cylinder head, having good strength and wear properties.

Abstract: This invention relates to a method for the production of a valve seat (5) for a cylinder head of an internal combustion engine. According to said method, an additional material is melted with the cylinder head by applying energy in the site in which the valve seat (5) is to be formed. An alloy or a mixture consisting of an aluminum-iron alloy and at least another component is used as additional material.

Abstract: In a process for producing a valve seat for a cylinder head of an internal combustion engine, by introduction of energy a filler material is fused to the cylinder head at the location at which the valve seat is to be formed. The filler material used is an alloy or mixture of an aluminum-iron alloy and at least one further constituent.

Abstract: The invention relates to a process for producing a valve seat for a cylinder head of an internal combustion engine, in which an additional material is fused to the cylinder head, through introduction of energy, at the location at which the valve seat is to be formed, wherein the additional material used is a copper alloy which, in addition to copper, comprises the following elements: iron less than ?5% by weight, manganese 10% by weight-20% by weight, cobalt ?5% by weight-10% by weight, molybdenum ?5% by weight, 9% by weight, 5% by weight, boron ?1% by weight-3% by weight, chromium less than ?3% by weight.

Abstract: The invention relates to a method for the formation of a high-strength and wear-resistant composite layer on the surface of an aluminium-alloy substrate made from an applied metal filler. Said metal filier comprises an alloy or a powder mixture containing aluminium, silicon, and at least 15 wt. % iron. The alloy or powder mixture arranged on the surface of the aluminium-alloy substrate is fused with a surface component of the aluminium-alloy substrate, by means of irradiating the alloy or powder mixture with a laser.

Abstract: In a method for producing a valve seat for a cylinder head of an internal combustion engine made of an aluminum metal alloy as the base material, an added material is fused by a laser beam with the base material of the cylinder head at the point at which the valve seat is to be formed. An alloy or a mixture of an aluminum-silicon alloy and nickel as well as at least one additional component is used as added material.