Model of Grain Deformation Method for Evaluation of Creep Life in In-Service Components

Author:

Kim Hyo-Jin1,Jung Jae-Jin1

Affiliation:

1. R&D Center, Korea Heavy Industries & Construction Co., Ltd., 555 Guygok-Dong, Changwon, 641-792, Korea

Abstract

The creep life can be evaluated by the degree of grain deformation since the grains of Cr-Mo base material deform in the direction of stress. The grain deformation method using image-processing technique is developed for life assessment of in-service high temperature components. The new assessment model for the method is presented to apply to in-service components and is verified by interrupted creep test for ex-serviced material of 1Cr-0.5Mo steel. The proposed model, which is irrespective of stress direction, is to evaluate mean of the absolute deviation for the measured aspect ratios of the grains sections. [S0094-4289(00)00801-X]

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Reference7 articles.

1. Roberts, B. W., Ellis, F. V., and Henry, J. F., 1989, Remaining-Life Estimation of Boiler Pressure Parts, Volume 4: Metallographic Models for Weld-Heat-Affected Zone, EPRI CS-5588, pp. 37–39.

2. Roberts, B. W., Avernue, K., and Askins, M. C., 1989, Remaining-Life Estimation of Boiler Pressure Parts, Volume 3: Base Metal Model, EPRI CS-5588, pp. 22–23.

3. Shoji, T., 1964, Material Degradation & Life Prediction, REALIZE INC., pp. 179–186.

4. Tanaka, C., 1990, NRIM Creep Data Sheet, No. 35A, NRIM, pp. 5–9.

5. ASTM Standard, 1990, “Standard Practice for Production and Evaluation of Field Metallographic Replicas,” Annual Book, E1351-90, pp. 953–958.

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3