Topic
Spray forming
About: Spray forming is a research topic. Over the lifetime, 1153 publications have been published within this topic receiving 12869 citations. The topic is also known as: spray casting & spray deposition.
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TL;DR: In this article, the microstructure and wear properties of spray-formed bronze were systematically investigated and the results showed that although the hardness of spray formed alloy was not increased comparing with the cast alloy, it still presented a lower wear rate and a lower friction coefficient in dry sliding wear tests as shallower grooves and more lubricating films were observed in the spray formed bronze (BSF14).
Abstract: In this research, Cu-9Pb high leaded bronze were prepared by spray forming. The microstructure and wear properties of this bronze alloy were systematically investigated. The results show that although the hardness of spray formed alloy was not increased comparing with the cast alloy, it still presented a lower wear rate and a lower friction coefficient in dry sliding wear tests as shallower grooves and more lubricating films were observed in the spray formed bronze (BSF14). Spray forming also refined the lead phase microstructure of Cu-9Pb bronze and improved its wear properties.
TL;DR: In this paper, the Mg-9Al-3Zn-0.6Mn-xNd alloys, preformed with φ300mm size, have been prepared by spray forming technology under a protective atmosphere.
Abstract: The Mg-9Al-3Zn-0.6Mn-xNd alloys, preformed with φ300mm size, has been prepared by spray forming technology under a protective atmosphere. The microstructure and mechanical properties have been investigated by XRD, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and strengths tested mechine. As a result, the precipitate phases in the alloys were the finest when the Nd content was 1% compared the alloys with the Nd content were 2% and 3%, the size of precipitation phases are between 1-2um and there are phases like Mg2Ca，Al2Ca，and MgZn2 in the alloys. After extrusion, recrystallization microstructures were found in the alloys. The tensile strengths are between 400-450MPa and the yield strengths are between 350-370MPa respectively as the differences content of Nd in the alloys after heat treatment.
Patent•
04 Feb 1998
TL;DR: In this article, a spray forming method was used to produce semi-finished metal products by spray forming in which one or more jets of nitrogen or a nitrogen-containing gas are directed onto a stream of molten metal to atomise the same.
Abstract: A method of producing semi-finished metal products by spray forming in which one or more jets of nitrogen or a nitrogen-containing gas are directed onto a stream of molten metal to atomise the same. A titanium addition is made to the liquid metal which may be steel or a nickel based alloy before spray forming occurs. The atomised liquid or partially solidified droplets of metal collect on a substrate to produce a semi-finished product.
01 Dec 1995
TL;DR: In this paper, the manufacturing methods used to develop a four component functional gradient material of copper, tungsten, boron, and borons nitride was described.
Abstract: Researchers at Plasma Processes Inc. have produced a Functional Gradient Material (FGM) through advanced vacuum plasma spray processing for high heat flux applications. Outlined in this paper are the manufacturing methods used to develop a four component functional gradient material of copper, tungsten, boron, and boron nitride. The FGM was formed with continuous gradients and integral cooling channels eliminating bondlines and providing direct heat transfer from the high temperature exposed surface to a cooling medium. Metallurgical and x-ray diffraction analyses of the materials formed through innovative VPS (vacuum plasma spray) processing are also presented. Applications for this functional gradient structural material range from fusion reactor plasma facing components to missile nose cones to boilers.