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The residual strain in a mock-up of a first wall for nuclear fusion reactors is investigated. An AISI 316L steel component was subjected to 27,000 thermal cycles simulating the heat flux variations during reactor operations, in an experimental station built for this purpose at the JRC Ispra. The residual strain map was obtained theoretically by using finite element analysis. The numerical results are compared with the strain values measured along two lines, using neutron diffraction. The theoretical computation does not consider the actual state of the component, nor the effects of undesirable thermal variations related to preparation and handling. However, good agreement is obtained between theoretical prediction and measured values, indicating that neutron diffraction is a refined tool for studying residual strains.

Additional information

Authors: ALBERTINI G, Università di Ancona, Dipartimento di Scienza dei Materiali e della Terra (IT);ANDRE G, Laboratoire Leon Brillouin, Saclay (FR);PERRIN M, Laboratoire Leon Brillouin, Saclay (FR);MATERA R, JRC Ispra (IT);MIELE P, JRC Ispra (IT);MEROLA M, JRC Ispra (IT);RUSTICHELLI F, Università di Ancona, Istituto di Fisica Medica (IT)
Bibliographic Reference: Article: Materials Science and Engineering, A148 (1991) pp. 211-217
Record Number: 199210421 / Last updated on: 1994-12-02
Original language: en
Available languages: en
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