2results about How to "Improve high temperature durability" patented technology

A method for manufacturing ultra-high durability titanium alloy using laser additive manufacturing, relating to the field of metal material additive manufacturing, includes the following steps: S1: loading titanium alloy powder into a powder feeding device and fixing a substrate in a forming chamber; S2: after the water and oxygen content in the forming chamber is below 50 ppm, laser forming begins, depositing the molten titanium alloy powder along a planned path to form a dense metal component; after one layer is formed, the next layer is deposited after a set time interval; S3: after deposition is complete, the deposited sample is removed from the forming chamber, the sample is cut to prepare a titanium alloy specimen, and the phase transition point T of the titanium alloy specimen is measured. β S4: Based on the phase transition point T β Based on the measurement results, the titanium alloy samples underwent a first heat treatment and a second heat treatment to obtain the final titanium alloy component. By controlling the solidification process of laser additive manufacturing and precisely matching the dual heat treatments, a titanium alloy component with good high-temperature tensile properties and excellent high-temperature creep resistance was obtained.

The present application relates to a kind of high chromium nickel-based superalloy 3D printing structural member heat treatment method.The above-mentioned heat treatment method includes the following steps: high chromium nickel-based superalloy 3D printing structural member is placed into heat treatment furnace;Vacuumizing treatment is carried out to heat treatment furnace;High chromium nickel-based superalloy 3D printing structural member in vacuum environment is heated for the first time, until heated to 600 ℃±10 ℃;High chromium nickel-based superalloy 3D printing structural member is kept for the first preset time period;High chromium nickel-based superalloy 3D printing structural member in vacuum environment is heated for the second time, until heated to 800 ℃±10 ℃;High chromium nickel-based superalloy 3D printing structural member is kept for the second preset time period;High chromium nickel-based superalloy 3D printing structural member is cooled to room temperature.The use of heat treatment method can improve the processing efficiency of high chromium nickel-based superalloy 3D printing structural member, reduce processing cost, improve high temperature endurance performance, so that tensile property, elongation and impact performance are all beyond the level of forging.