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A key issue in applying neutron diffraction to welds is the reliable estimation of the stress-free lattice distance throughout the parent material, heat affected zone and weld pool and in all directions of interest. Based on numerous investigations, it has been recently established that this can be achieved by testing small coupons cut from a companion weld specimen based on the assumption that such coupons are free from macro-stresses. In fact, the feasibility of this approach has been demonstrated in both steel (monolithic and bimetallic) and aluminium welds. In this paper we present measured residual stresses in four welded specimens.

Additional information

Authors: OHMS C, JRC-Institute for Advanced Materials, HFR, Petten (NL);YOUTSOS A.G, JRC-Institute for Advanced Materials, HFR, Petten (NL)
Bibliographic Reference: An oral report given at the: International Conference on Processing and Manufacturing of Advanced Materials-THERMEC 2000. Organised by: ASME. Held in: Las Vagas, (US) 4-8 December 2000
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