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Small punch creep test: A promising methodology for high temperature plant components life evaluation

Abstract

CISE and ENEL are involved for years in a miniaturization creep methodology project to obtain similar non-destructive test with the same standard creep test reliability. The goal can be reached with `Small punch creep test` that collect all the requested characteristics; quasi nondestructive disk specimens extracted both on external or internal side of components, than accurately machined and tested on little and cheap apparatus. CISE has developed complete creep small punch procedure that involved peculiar test facility and correlation`s law comparable with the more diffused isostress methodology for residual life evaluation on ex-serviced high temperature plant components. The aim of this work is to obtain a simple and immediately applicable relationship useful for plant maintenance managing. More added work is need to validate the Small Punch methodology and for relationship calibration on most diffusion high temperature structural materials. First obtained results on a comparative work on ASTM A355 P12 ex-serviced pipe material are presented joint with a description of the Small Punch apparatus realized in CISE. (orig.) 6 refs.
Authors:
Tettamanti, S; [1]  Crudeli, R [2] 
  1. CISE SpA, Milan (Italy)
  2. ENEL SpA, Milan (Italy)
Publication Date:
Dec 31, 1998
Product Type:
Conference
Report Number:
VTT-SYMP-185(v.2); CONF-980999-
Reference Number:
SCA: 200104; 360103; PA: FI-99:003077; EDB-99:034968; SN: 99002064691
Resource Relation:
Conference: 4. Baltica seminar on plant maintenance for managing life and performance, Helsinki (Finland), 7-9 Sep 1998; Other Information: PBD: 1998; Related Information: Is Part Of BALTICA IV. Plant maintenance for managing life and performance; Hietanen, S.; Auerkari, P. [eds.] [VTT Manufacturing Technology, Espoo (Finland). Operational Reliability]; PB: 398 p.
Subject:
20 FOSSIL-FUELED POWER PLANTS; 36 MATERIALS SCIENCE; POWER PLANTS; EQUIPMENT; MAINTENANCE; CHROMIUM-MOLYBDENUM STEELS; NONDESTRUCTIVE TESTING; CREEP; SERVICE LIFE; TEMPERATURE RANGE 0400-1000 K; RUPTURES
OSTI ID:
324993
Research Organizations:
Technical Research Centre of Finland, Espoo (Finland)
Country of Origin:
Finland
Language:
English
Other Identifying Numbers:
Other: ON: DE99730863; ISBN 951-38-4577-X; TRN: FI9903077
Availability:
OSTI as DE99730863
Submitting Site:
FI
Size:
pp. 501-509
Announcement Date:

Citation Formats

Tettamanti, S, and Crudeli, R. Small punch creep test: A promising methodology for high temperature plant components life evaluation. Finland: N. p., 1998. Web.
Tettamanti, S, & Crudeli, R. Small punch creep test: A promising methodology for high temperature plant components life evaluation. Finland.
Tettamanti, S, and Crudeli, R. 1998. "Small punch creep test: A promising methodology for high temperature plant components life evaluation." Finland.
@misc{etde_324993,
title = {Small punch creep test: A promising methodology for high temperature plant components life evaluation}
author = {Tettamanti, S, and Crudeli, R}
abstractNote = {CISE and ENEL are involved for years in a miniaturization creep methodology project to obtain similar non-destructive test with the same standard creep test reliability. The goal can be reached with `Small punch creep test` that collect all the requested characteristics; quasi nondestructive disk specimens extracted both on external or internal side of components, than accurately machined and tested on little and cheap apparatus. CISE has developed complete creep small punch procedure that involved peculiar test facility and correlation`s law comparable with the more diffused isostress methodology for residual life evaluation on ex-serviced high temperature plant components. The aim of this work is to obtain a simple and immediately applicable relationship useful for plant maintenance managing. More added work is need to validate the Small Punch methodology and for relationship calibration on most diffusion high temperature structural materials. First obtained results on a comparative work on ASTM A355 P12 ex-serviced pipe material are presented joint with a description of the Small Punch apparatus realized in CISE. (orig.) 6 refs.}
place = {Finland}
year = {1998}
month = {Dec}
}