Development of small punch test for EAC evaluation

Jerome Isselin, Shengchun Wang, Shin Ichi Komazaki, Tetsuo Shoji

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


We are developing a Small-Punch SCC testing apparatus with an in-situ observation system applied to high temperature water and high pressure. This new testing apparatus is used to evaluate the Environmentally Assisted Cracking effect. A constant loading rate was carried out with different values of speed, of water flow rate and different polishing of the sample. In BWR (Boiling Water Reactor) conditions (9MPa and 288°C) it was found that the loading rate, water flow rate and surface preparation of the sample have some influence if the test is performed during a short time (maximum 4 days). After the test, by SEM observation, studying the secondary microcracks, it is possible to find all the sequences of EAC process. The in-situ observation system permits to study the strain of the sample during the test.

Original languageEnglish
Pages (from-to)980-985
Number of pages6
JournalKey Engineering Materials
Volume297-300 II
Publication statusPublished - 2005 Jan 1
Externally publishedYes


  • Boiling water reactor
  • In-situ observation system
  • Sensitized stainless steel
  • Small-punch test
  • Stress corrosion cracking

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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