The role of hardness on condition monitoring and lifing for high temperature power plant structural risk management

被引：7
作者：
Morris, A. [1 ]
Cacciapuoti, B. [2 ]
Sun, W. [2 ]
机构：
[1] Cent Tech Org, EDF Energy UK Coal Gas & Renewables, Gloucester GL4 3RS, England
[2] Univ Nottingham, Dept Mech Mat & Mfg Engn, Nottingham NG7 2RD, England
来源：
MEASUREMENT | 2019年 / 131卷
基金：
英国工程与自然科学研究理事会;
关键词：
Hardness; Creep; Replica; Damage model; Condition monitoring; CREEP-LIFE ASSESSMENT; FERRITIC STEELS; YIELD STRENGTH; DEGRADATION; MECHANISMS; DAMAGE; MODEL;
D O I：
10.1016/j.measurement.2018.09.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, the use of hardness data in a novel predictive lifing model is explored. This study provides for the first time large amounts of site hardness data acquired during successive outages on an ageing coal fired power plant and draws conclusions regarding interpretation of these data in accordance with current practice, which is included in a case study. A novel, phenomenological relationship between room temperature hardness and creep data, obtained by uniaxial creep and impression creep tests, has been found and used for an innovative lifing approach that includes hardness data in a creep damage model. The latter is discussed with a description of how it could be practically implemented and validated in-service. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：501 / 512
页数：12
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