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A method for evaluating the deterioration of heat-resistant steel components

A technology for heat-resistant steel and parts, which is applied in the field of degradation evaluation of heat-resistant steel parts, can solve the problems of long evaluation period, difficult restoration of workpieces, and high cost, and achieve the effect of short evaluation period, low difficulty of restoration, and reduced sample cost

Active Publication Date: 2021-02-02
国能锅炉压力容器检验有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a method for evaluating the deterioration of heat-resistant steel parts, which can effectively solve the problems of high cost, long evaluation period, The difficult problem of artifact recovery after destructive sampling

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  • A method for evaluating the deterioration of heat-resistant steel components
  • A method for evaluating the deterioration of heat-resistant steel components
  • A method for evaluating the deterioration of heat-resistant steel components

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Embodiment Construction

[0031] The object of the present invention is to provide a method for evaluating the deterioration of heat-resistant steel parts, which can effectively solve the problem of high cost, long evaluation period, and destructive sampling. The problem that the artifact recovery is difficult.

[0032] The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] see figure 1 , figure 1 The flow chart of the method for evaluating the deterioration of heat-resistant steel parts provided by the embodiment of the present invention includes st...

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Abstract

The invention discloses a method for evaluating the deterioration of heat-resistant steel parts, comprising the steps of: a. obtaining micro-samples of heat-resistant steel parts; b. testing the micro-samples by at least one detection technology to obtain a first detection method Result; c. Detect the sample of the heat-resistant steel part to obtain the second detection result; d. Determine the matching relationship between the first detection result and the second detection result, and establish a database, through which the database can be consulted with all The first detection result matches the second detection result, and the matched first detection result and the second detection result represent the same deterioration level of the heat-resistant steel component. The method for evaluating the deterioration of heat-resistant steel parts can effectively solve the problems of high cost, excessively long evaluation period, and difficult recovery of workpieces after destructive sampling in the existing methods for evaluating the deterioration of heat-resistant steel parts.

Description

technical field [0001] The invention relates to the technical field of performance detection of heat-resistant steel parts, and more specifically, to a method for evaluating the deterioration of heat-resistant steel parts. Background technique [0002] Most of the workpieces subjected to high temperature and high pressure conditions are made of heat-resistant steel materials, such as high-temperature and high-pressure pipes, pipe fittings, valves, etc. in power plants and chemical plants. With the prolongation of service time, heat-resistant steel components gradually age, and the main performance degradation mechanisms include high-temperature creep, thermal fatigue, and creep-fatigue interaction. [0003] At present, destructive methods (such as pipe cutting, overall sectioning, etc.) are usually used to sample heat-resistant steel workpieces, and through long-term high-temperature creep tests (test period of thousands to tens of thousands of hours), short-term high-temper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/08G01N3/18G01N33/20
CPCG01N3/08G01N3/18G01N33/20
Inventor 崔崇袁廷璧牛晓光董勇军肖德铭
Owner 国能锅炉压力容器检验有限公司
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