THERMOMECHANICAL PROCESSING OF HIGH STRENGTH NON-MAGNETIC CORROSION RESISTANT MATERIAL

    公开(公告)号:ZA201504566B

    公开(公告)日:2021-09-29

    申请号:ZA201504566

    申请日:2015-06-24

    Abstract: A method of processing a non-magnetic alloy workpiece comprises heating the workpiece to a warm working temperature, open die press forging the workpiece to impart a desired strain in a central region of the workpiece, and radial forging the workpiece to impart a desired strain in a surface region of the workpiece. In a non-limiting embodiment, after the steps of open die press forging and radial forging, the strain imparted in the surface region is substantially equivalent to the strain imparted in the central region. In another non-limiting embodiment, the strain imparted in the central and surface regions are in a range from 0.3 inch/inch to 1 inch/inch, and there exists no more than a 0.5 inch/inch difference in strain of the central region compared with the strain of the surface region of the workpiece. An alloy forging processed according to methods described herein also is disclosed.

    THERMOMECHANICAL PROCESSING OF ALPHA-BETA TITANIUM ALLOYS

    公开(公告)号:CA2892936C

    公开(公告)日:2021-08-10

    申请号:CA2892936

    申请日:2014-02-28

    Abstract: One embodiment of a method of refining alpha-phase grain size in an alpha-beta titanium alloy comprises working an alpha-beta titanium alloy at a first working temperature within a first temperature range in the alpha-beta phase field of the alpha-beta titanium alloy. The alloy is slow cooled from the first working temperature. On completion of working at and slow cooling from the first working temperature, the alloy comprises a primary globularized alpha-phase particle microstructure. The alloy is worked at a second working temperature within a second temperature range in the alpha-beta phase field. The second working temperature is lower than the first working temperature. The is worked at a third working temperature in a third temperature range in the alpha-beta phase field. The third working temperature is lower than the second working temperature. After working at the third working temperature, the titanium alloy comprises a desired refined alpha-phase grain size.

    THERMOMECHANICAL PROCESSING OF HIGH STRENGTH NON- MAGNETIC CORROSION RESISTANT MATERIAL

    公开(公告)号:IN3008DEN2015A

    公开(公告)日:2015-10-02

    申请号:IN3008DEN2015

    申请日:2015-04-10

    Abstract: A method of processing a non- magnetic alloy workpiece comprises heating the workpiece to a warm working temperature , open die press forging the workpiece to impart a desired strain in a central region of the workpiece , and radial forging ,the workpiece to impart a desired strain in a surface region of the workpiece. In a non- limiting embodiment , after the steps of open die press forging and radial forging the strain imparted in the surface region is substantially equivalent to the strain imparted in the central region. In another non limiting embodiment the strain imparted in the central and surface regions are in a range from 0.3 inch/inch to 1 inch/inch, and there exists no more than a 0.5 inch/inch difference in strain of the central region compared with the strain of the surface region of the workpiece. An alloy forging processed according to methods described herein also is disclosed.

    SPLIT-PASS OPEN-DIE FORGING FOR HARD-TO-FORGE, STRAIN-PATH SENSITIVE TITANIUM-BASE AND NICKEL-BASE ALLOYS

    公开(公告)号:CA2892938A1

    公开(公告)日:2014-09-25

    申请号:CA2892938

    申请日:2014-03-03

    Abstract: Split pass forging a workpiece to initiate microstructure refinement comprises press forging a metallic material workpiece in a first forging direction one or more times up to a reduction ductility limit of the metallic material to impart a total strain in the first forging direction sufficient to initiate microstructure refinement; rotating the workpiece; open die press forging the workpiece in a second forging direction one or more times up to the reduction ductility limit to impart a total strain in the second forging direction to initiate microstructure refinement; and repeating rotating and open die press forging in a third and, optionally, one or more additional directions until a total amount of strain to initiate microstructure refinement is imparted in an entire volume of the workpiece.

    Procesamiento termomecánico de material resistente a la corrosión no magnético de alta resistencia

    公开(公告)号:ES2869436T3

    公开(公告)日:2021-10-25

    申请号:ES14707905

    申请日:2014-02-17

    Abstract: Un método de procesamiento de una pieza de trabajo de aleación de acero inoxidable austenítica no magnética, que comprende: recocer la pieza de trabajo; calentar la pieza de trabajo hasta una temperatura de trabajo en caliente, en donde la temperatura de trabajo en caliente se encuentra en un intervalo de 510 °C a 621 °C (de 950 °F a 1.150 °F); forjar en prensa de troquel abierto la pieza de trabajo a una temperatura en el intervalo de temperatura de trabajo en caliente para conferir un esfuerzo deseado a una región central de la pieza de trabajo; y forjar radialmente la pieza de trabajo a una temperatura en el intervalo de temperatura de trabajo en caliente para conferir un esfuerzo deseado a una región superficial de la pieza de trabajo; en donde, después de las etapas de forjado en prensa de troquel abierto y forjado radial, el esfuerzo conferido a la región central y el esfuerzo conferido a la región superficial se encuentran, cada uno, en un intervalo de 0,3 cm/cm (pulgada/pulgada) a 1,0 cm/cm (pulgada/pulgada); en donde la diferencia en el esfuerzo de la región central a la región superficial no es mayor de 0,5 cm/cm (pulgada/pulgada), en donde una "región superficial" de una pieza de trabajo incluye un volumen de material entre la superficie de la pieza de trabajo hasta una profundidad de hasta aproximadamente el 50 % de la distancia de la superficie al centro de la pieza de trabajo y una "región central" de una pieza de trabajo incluye un volumen de material localizado en el centro que constituye hasta aproximadamente el 70 % en volumen de material de la pieza de trabajo; y en donde la pieza de trabajo forjada tiene una sección transversal circular con un diámetro mayor de 13,34 cm (5,25 pulgadas).

    THERMOMECHANICAL PROCESSING OF HIGH STRENGTH NON-MAGNETIC CORROSION RESISTANT MATERIAL

    公开(公告)号:SG10201606744YA

    公开(公告)日:2016-10-28

    申请号:SG10201606744Y

    申请日:2014-02-17

    Abstract: A method of processing a non-magnetic alloy workpiece comprises heating the workpiece to a warm working temperature, open die press forging the workpiece to impart a desired strain in a central region of the workpiece, and radial forging the workpiece to impart a desired strain in a surface region of the workpiece. In a non-limiting embodiment, after the steps of open die press forging and radial forging, the strain imparted in the surface region is substantially equivalent to the strain imparted in the central region. In another non-limiting embodiment, the strain imparted in the central and surface regions are in a range from 0.3 inch/inch to 1 inch/inch, and there exists no more than a 0.5 inch/inch difference in strain of the central region compared with the strain of the surface region of the workpiece. An alloy forging processed according to methods described herein also is disclosed.

    Endplate for hot isostatic pressing canister, hot isostatic pressing canister, and hot isostatic pressing method

    公开(公告)号:NZ624976A

    公开(公告)日:2016-05-27

    申请号:NZ62497612

    申请日:2012-11-12

    Abstract: Disclosed is an endplate for a hot isostatic pressing canister for improving the powder filling characteristics of the cylinder without adding additional fill stems. The endplate comprises a central region, and a main region extending radially from the central region and terminating in a corner about a periphery of the endplate. The thickness of the endplate increases along the main region, from the central region to the corner, defining a taper angle. The corner includes an inner surface comprising a radiused portion by which the main region smoothly transitions into the lip. A hot isostatic pressing canister including at least one of the endplates also is disclosed, along with a method of hot isostatic pressing a metallurgical powder using the hot isostatic canister.

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