公开(公告)号：US20220299455A1

公开(公告)日：2022-09-22

申请号：US17697938

申请日：2022-03-18

Applicant: NCS TESTING TECHNOLOGY CO., LTD

Inventor： DONGLING LI ,  HAIZHOU WANG ,  XUEJING SHEN ,  LEI ZHAO ,  WENYI CAI ,  MINGBO LIU ,  ZONGXIN LIU ,  YA PENG

IPC: G01N23/223 ,  G01N33/2028

Abstract: A method for quantitatively characterizing a dendrite segregation and dendrite spacing of a high-temperature alloy ingot is disclosed. The method includes preparation and surface treatment of the high-temperature alloy ingot, selection of calibration sample and determination of an element content, establishment of quantitative method for elements in micro-beam X-ray fluorescence spectrometer, quantitative distribution analysis of element components of the high-temperature alloy, quantitative characterization of characteristic element line distribution of high-temperature alloy, and analysis of a characteristic element line distribution map and statistics of a secondary dendrite spacing.

公开(公告)号：US20220252488A1

公开(公告)日：2022-08-11

申请号：US17586729

申请日：2022-01-27

Applicant: NCS TESTING TECHNOLOGY CO., LTD ,  CENTRAL IRON AND STEEL RESEARCH INSTITUTE

Inventor： DONGLING LI ,  LEI ZHAO ,  HAIZHOU WANG ,  XUEJING SHEN ,  QINGQING ZHOU ,  WEIHAO WAN ,  HAOZHOU FENG

IPC: G01N1/28 ,  G01N23/223 ,  G01N33/204

Abstract: The present application relates to a method for statistical distribution characterization of dendritic structures in original position of single crystal superalloy, and relates to the technical field of analysis of metal material composition and microstructure, comprising the following steps: step 1, processing a to-be-tested sample and determining a calibration coefficient; step 2, obtaining a two-dimensional element content distribution map of the to-be-tested sample; and step 3, determining the number and average spacing of primary dendrites. A composition distribution region analyzed in the present application is larger than the area of a distribution region of the traditional microscopic analysis method, and the sample preparation is simple. The distribution, number and average spacing of the primary dendrites can be obtained without metallographic corrosion sampling. Therefore, the present invention has the advantages of large statistical field of view, high efficiency and complete information, and the statistical data is more accurate and reliable.

公开(公告)号：US20230358693A1

公开(公告)日：2023-11-09

申请号：US17902952

申请日：2022-09-05

Applicant: NCS TESTING TECHNOLOGY CO., LTD. ,  CENTRAL IRON & STEEL RESEARCH INSTITUTE CO., LTD.

Inventor： LIXIA YANG ,  HAIZHOU WANG ,  LIZHI REN ,  DANQI HUANG ,  LEI ZHAO ,  XUEJING SHEN ,  DONGLING LI ,  ZONGXIN LIU ,  CHANGWANG ZHU ,  YANG WANG ,  YUNHAI JIA

IPC: G01N23/20008

CPC classification number: G01N23/20008 ,  G01N2223/05 ,  G01N2223/106

Abstract: A component residual stress testing platform based on neutron diffraction and experimental method thereof are provided, the testing platform includes a component support, a rotating mainshaft, a first thrust cylindrical roller bearing, a first cylindrical roller bearing, a bearing spacing sleeve, a second cylindrical roller bearing, a sleeve, and a first fixed baffle. The rotating mainshaft is disposed on the component support. The first thrust cylindrical roller bearing, the first cylindrical roller bearing, the bearing spacing sleeve and the second cylindrical roller bearing are sleeved on the rotating mainshaft, the sleeve is sleeved outside the first cylindrical roller bearing, the bearing spacing sleeve and the second cylindrical roller bearing, a component to be tested is sleeved on the sleeve. The testing platform can support, move, tilt and rotate the component to be tested in a process of a residual stress testing.