Disclosed is a processing technology for inhibiting weld coarse grains of magnesium alloy profiles, including the following steps: preparation of a magnesium alloy ingot, homogenization, scalping, extrusion, pre-stretching at room temperature, solution treatment, quenching, stretching correction, artificial aging, etc. The processing technology can effectively control the production of weld coarse grains in extrusion and heat treatment processes of magnesium alloy profiles, and all property indexes of final products are higher than standard requirements.

The present invention relates to a method for producing a component of a γ-TiAl alloy, in which, in a first step, a forging blank made of a γ-TiAl alloy is built up from a powder material by an additive method, and subsequently, in a second step, the forging blank is reshaped into a semi-finished product, wherein the degree of reshaping over the entire forging blank is high enough that, in a third step, the structure is recrystallized during a heat treatment. In addition, the invention relates to a component produced therefrom.

Provided is a method for producing a Ni- or Ti-based alloy product, the method capable of reliably locally cooling and effectively cooling. The method includes the steps: heating and holding a hot working material of a Ni- or Ti-based alloy after hot forging or hot ring rolling at a solution treatment temperature to obtain a material held in a heated state, and cooling the material held in a heated state to obtain a solution-treated material. The cooling step includes carrying out local cooling by contacting a cooling member with a part of a surface of the material held in a heated state.

The present disclosure relates to a method of manufacturing an aluminum alloy with excellent mechanical properties by controlling a heat treatment step and a cooling step in a process of manufacturing the aluminum alloy. In detail, there is provided a method of manufacturing an aluminum alloy, including: a heating step of heating an aluminum alloy made of an aluminum alloy composite up to 500 to 560° C.; a solution treatment step of maintaining the heated aluminum alloy for 5 to 7 hours; a cooling step of cooling the solution-treated aluminum alloy for 15 seconds to 1 minute; and an aging step of age-hardening the cooled aluminum alloy for 2.5 to 4 hours at 140 to 180° C.

According to the method of manufacturing an aluminum alloy of the present disclosure and an aluminum alloy manufactured by the method, elongation is secured by reducing the solution treatment time and strength is increased by remaining heat by relatively increasing the drop speed of a pallet between a solution treatment furnace and a cooling container, the distance between the furnace and the container, and the cooling time, thereby being able to provide an aluminum alloy having excellent mechanical properties.

Disclosed are high-strength, highly deformable aluminum alloys and methods of making and processing such alloys. More particularly, disclosed is a heat treatable aluminum alloy exhibiting improved mechanical strength and formability. The processing method includes casting, homogenizing, hot rolling, solutionizing, pre-aging and in some cases pre-straining. In some cases, the processing steps can further include cold rolling and/or heat treating.

Exemplary methods of cooling a semiconductor component substrate may include heating the semiconductor component substrate to a temperature of greater than or about 500° C. in a chamber. The semiconductor component substrate may be or include aluminum. The methods may include delivering a gas into the chamber. The gas may be characterized by a temperature below or about 100° C. The methods may include cooling the semiconductor component substrate to a temperature below or about 200° C. in a first time period of less than or about 1 minute.

A preparation method of a uniform low stress cone shaped charge liner includes the steps of multi-pass extrusion forming, vibration aging treatment, and cryogenic treatment. The step of multi-pass extrusion forming refers to 4 to 8 passes of extrusion deformation under the actions of a three-dimensional compressive stress and a deformation rate of 5 to 10 mm/s, having a deformation amount of 5 to 50% for each pass. The shaped charge liner prepared by the present invention has high dimensional accuracy, good geometric symmetry, low stress value, and excellent stability in the precise machining process and in use, which may significantly improve the penetration capability and stability of the shaped charge liner of high-explosive anti-tank warheads.

The present invention relates to plates with a thickness of between 8 and 50 mm and made from aluminum alloy with a composition, as % by weight, Si: 0.7-1.3; Mg: 0.6-1.2; Mn: 0.65-1.0; Fe: 0.05-0.35; at least one element selected from Cr: 0.1-0.3 and Zr: 0.06-0.15; Ti<0.15; Cu<0.4; Zn<0.1; other elements <0.05 each and <0.15 in total, the remainder aluminum, and the method for manufacturing same. The plates according to the invention are particularly useful as precision plates, in particular for producing elements of machines, for example assembly or inspection equipment. The plates according to the invention have improved dimensional stability in particular during the machining steps, while having sufficient static mechanical properties, and excellent suitability for anodizing.

Process for manufacturing a part (20) including a formation of successive metal layers (20.sub.1 . . . 20.sub.n), which are superimposed on each other, each layer being formed by depositing a filler metal (15, 25), the filler metal being subjected to a supply of energy so as to become molten and to constitute, upon solidifying, said layer, the process being characterized in that the filler metal (15, 25) is an aluminum alloy including the following alloy elements (% by weight); Mg: 2.0%-5.0%; Zr: 0.5%-1.0%; Fe: 0.6%-3.0%; optionally Zn: ≤0.5%; optionally Cu: ≤0.5%; other alloy elements, in total ≤4.0%, and individually ≤1.0%; impurities: <0.05% individually, and in total <0.15%; remainder aluminum.

Provided is a method for producing a Ni- or Ti-based alloy product, the method capable of locally increasing the cooling rate and effectively cooling. The method includes the steps: preliminarily processing a hot working material of a Ni- or Ti-based alloy after hot working into a predetermined shape; heating and holding the material at a solution treatment temperature to obtain a material held in a heated state; and cooling the material held in a heated state to obtain a solution-treated material. The cooling step includes placing a flow path-forming member having a space for forming a flow path for a fluid on a surface of the material held in a heated state to form a fluid flow path defined by the surface of the material held in a heated state and an inner surface of the space of the flow path-forming member; and allowing a fluid to flow in the fluid flow path so that the fluid in the flow path locally cools a part of the surface of the material held in a heated state.