METHOD FOR AUTOMATIC QUANTITATIVE STATISTICAL DISTRIBUTION CHARACTERIZATION OF DENDRITE STRUCTURES IN A FULL VIEW FIELD OF METAL MATERIALS

    公开(公告)号:US20210063376A1

    公开(公告)日:2021-03-04

    申请号:US17009117

    申请日:2020-09-01

    Abstract: The invention belongs to the technical field of quantitative statistical distribution analysis for micro-structures of metal materials, and relates to a method for automatic quantitative statistical distribution characterization of dendrite structures in a full view field of metal materials. According to the method based on deep learning in the present invention, dendrite structure feature maps are marked and trained to obtain a corresponding object detection model, so as to carry out automatic identification and marking of dendrite structure centers in a full view field; and in combination with an image processing method, feature parameters in the full view field such as morphology, position, number and spacing of all dendrite structures within a large range are obtained quickly, thereby achieving quantitative statistical distribution characterization of dendrite structures in the metal material. The method is accurate, automatic and efficient, involves a large amount of quantitative statistical distribution information, and is statistically more representative as compared with the traditional measurement of feature sizes of dendrite structures in a single view field.

    SYSTEM AND METHOD FOR HIGH-THROUGHPUT TEST OF MECHANICAL PROPERTIES OF MINIATURE SPECIMENS

    公开(公告)号:US20200319071A1

    公开(公告)日:2020-10-08

    申请号:US16835899

    申请日:2020-03-31

    Abstract: The present invention relates to a test system and method capable of simultaneously carrying out a high-throughput test of mechanical properties for miniature specimens. The system comprises one workstation (17) and a plurality of specimen test modules (16) installed horizontally or vertically on a workbench (15), wherein the workstation (17) comprises an operation interface, a data processing unit and a load output unit; each specimen test module (16) comprises a drive unit (5), an interchangeable to clamp unit (8), a displacement sensor (2), and a load sensor (14); the workstation (17) controls the drive unit (5) of the specimen test module (16) and receives detection data of the displacement sensor (2) and the load sensor (14); each specimen test module (16) optionally performs mechanical property testing independently; and the workstation (17) is controls simultaneously started testing of a plurality of specimens (9). The present invention can achieve tensile, bending, compression bending, stress-rupture, relaxation, and fatigue strength tests on a plurality of specimens at the same time.

    HIGH-THROUGHPUT AND SMALL SIZE SAMPLES TENSION, COMPRESSION, BENDING TEST SYSTEM AND METHOD THEREOF

    公开(公告)号:US20210364399A1

    公开(公告)日:2021-11-25

    申请号:US17333012

    申请日:2021-05-28

    Abstract: A high-throughput and small size samples tension, compression, bending test system is disclosed. The system includes a computer unit, a motor and a number of the sample testing modules mounted horizontally or perpendicular to that ground on a workbench. The sample testing modules include a sample testing modules base plate fixedly attached to the workbench, and a ball screw, a displacement sensor, a moving beam, a clamp unit, a linear moving platform unit and a force value sensor arranged on the sample testing modules base plate. A number of the sample testing modules are arrange in parallel on the workbench or uniformly distributed in a circumferential direction with a point on the workbench as a circular center.

    HIGH THROUGHPUT STATISTICAL CHARACTERIZATION METHOD OF METAL MICROMECHANICAL PROPERTIES

    公开(公告)号:US20210356369A1

    公开(公告)日:2021-11-18

    申请号:US17391017

    申请日:2021-08-01

    Abstract: The present invention discloses a high throughput statistical characterization method of metal micromechanical properties, which comprises: grinding and polishing a metal sample until specular reflection finish satisfies a test requirement; marking position coordinates of a to-be-measured area on the metal sample by a microhardness tester to ensure the comparison of the same to-be-measured area; conducting an isostatic pressing strain test on the to-be-measured area by an isostatic pressing technology; and comparing high throughput characterization of components, microstructures, microdefects and three-dimensional surface morphology of the metal sample before and after isostatic pressing strain to obtain the full-view-field cross-scale high throughput statistical characterization of micromechanical property uniformity of the metal sample.

Patent Agency Ranking