The invention belongs to the field of amorphous alloys, and more specifically, relates to a method for calibrating the internal temperature field of amorphous alloy prepared by spark plasma sintering. First, the part required for temperature field calibration inside the bulk amorphous alloy sample obtained by spark plasma sintering is cut into a series of small amorphous alloy samples, and the isothermal crystallization treatment is performed to obtain the crystallization time of different parts of the sample. An annealing-isothermal crystallization experiment is performed on the adopted amorphous alloy powder at different annealing temperatures, and the functional relationship between the annealing temperature and the crystallization time is obtained. The crystallization time of different parts inside the amorphous alloy sample is substituted into this functional relationship, the temperature distribution during the temperature holding stage during the sintering of different parts inside the amorphous alloy sample can be obtained.

Simulation system for selecting an alloy and a production process for a workpiece to be produced having amorphous properties, wherein the system includes : an input unit, for inputting a requirements profile for the workpiece to be produced, at least one memory unit, to store information data, wherein the information data specifies information concerning physical and/or chemical and/or mechanical properties of a number of alloys for manufacturing workpieces having amorphous properties and information concerning production processes, an analysis unit, to simulate a number of workpieces according to the requirements profile and the information data to create simulation data, to assess the simulated workpieces on the basis of the simulation data and the requirements profile, to select an alloy and a production process for the workpiece to be produced from assessment, and an output unit, to output the selected alloy and the selected production process.

An aspect of the present disclosure provides an amorphous metal porous body that is a metal porous body including pores, the amorphous metal porous body including: powder particle connection bodies in which at least portions of amorphous alloy powder particles adjacent to each other are connected in a network structure; and a plurality of pores provided between the powder particle connection bodies.

The invention belongs to the field of amorphous alloys, and more specifically, relates to a method for calibrating the internal temperature field of amorphous alloy prepared by spark plasma sintering. First, the part required for temperature field calibration inside the bulk amorphous alloy sample obtained by spark plasma sintering is cut into a series of small amorphous alloy samples, and the isothermal crystallization treatment is performed to obtain the crystallization time of different parts of the sample. An annealing-isothermal crystallization experiment is performed on the adopted amorphous alloy powder at different annealing temperatures, and the functional relationship between the annealing temperature and the crystallization time is obtained. The crystallization time of different parts inside the amorphous alloy sample is substituted into this functional relationship, the temperature distribution during the temperature holding stage during the sintering of different parts inside the amorphous alloy sample can be obtained.

Embodiments disclosed herein relate to the production of bulk amorphous metal (BAM) alloys comprising chromium, manganese, molybdenum, tungsten, silicon, carbon, boron, and the balance of iron to replace tungsten carbide-based welded material. The BAM alloy embodied herein can be applied through PTA welding, HVOF, TWAS, flame spraying, plasma spraying, laser, their combinations, and other coating and welding processes. When used as welded material, the density of the embodiment of around 7 grams per CC, which is less dense than the tungsten carbide customarily used, resulting in even hard faces during welding spread uniformly across the weld, therefore creating a harder and more wear-resistant weld.

One aspect is an ablation system with a wire feed configured to feed a wire and a wire take-up configured to take-up the wire. A wire handling system is configured to advance the wire and to stop the wire between the wire feed and the wire take-up in a controlled manner. A laser ablation processor is located between the wire feed and the wire take-up, the laser ablation processor having at least one laser configured to ablate the wire when the wire is stopped. A clamp system is located between wire feed and the wire take-up and configured to clamp onto the wire when the wire is stopped.

The soft magnetic alloy of the present disclosure is represented by a composition formula of Fe.sub.aSi.sub.bB.sub.cCu.sub.dM.sub.e where M is at least one type of element selected from a group consisting of Nb, Mo, V, Zr, Hf, and W, and the formula satisfies 82.5≤a≤86, 0.3≤b≤3, 12.5≤c≤15.0, 0.05≤d≤0.9, and 0≤e<0.4 in at %. The soft magnetic alloy includes a structure that has a crystal grain with a grain diameter of 60 nm or less in an amorphous phase.

Embodiments disclosed herein relate to the production of bulk amorphous metal (BAM) alloys comprising chromium, manganese, molybdenum, tungsten, silicon, carbon, boron, and the balance of iron to replace tungsten carbide-based welded material. The BAM alloy embodied herein can be applied through PTA welding, HVOF, TWAS, flame spraying, plasma spraying, laser, their combinations, and other coating and welding processes. When used as welded material, the density of the embodiment of around 7 grams per CC, which is less dense than the tungsten carbide customarily used, resulting in even hard faces during welding spread uniformly across the weld, therefore creating a harder and more wear-resistant weld.

The invention relates to a method for producing a bulk metallic glass composite material. The bulk metallic glass composite material has at least two phases, wherein the first phase is a bulk metallic glass, and at least one other phase is selected from the group consisting of crystalline metal, metallic glass, non-metallic glass, and ceramic. The invention is characterized in that the production is carried out using a powder-based additive manufacturing process.

The invention belongs to the fields of amorphous alloy composites, additive manufacturing technology and hot isostatic pressing sintering forming, and in particular relates to a preparation method of tungsten particle reinforced amorphous matrix composites, comprising the following steps: (1) making tungsten powder and amorphous alloy powder into a preform by the micro-jetting and bonding 3D printing technology, specifically comprising: in the preforming process by micro-jetting and bonding, through a double-drum type powder feeding device, spraying tungsten powder and amorphous alloy powder into a layer of uniformly mixed powder layer by double nozzles, then bonding the powder layer into a bonding layer by the binder, and repeating the operations of spraying the powders and binder, so that a preform with uniform particle phase distribution is finally prepared; (2) placing the preform in a capsule, and performing heating and vacuumizing on the capsule in a heating furnace; and (3) placing the capsule in the hot isostatic pressing sintering furnace and performing hot press forming to obtain an amorphous matrix composite. In the present invention, through combining the cold additive micro-jetting and bonding technology with hot isostatic pressing sintering forming, a tungsten particle reinforced amorphous matrix composite with large size and uniform particle phase distribution can be prepared.