Abstract
This research was carried out to develop a new type of testing method on the solidification cracking of welded joints and to clarify effects of experimental parameters and glass fiber tape backing on cracking.Results obtained in this study are summarized as follows; the experimental result revealed that the local tensile force method was quite effective to reproduce solidification cracking in narrow gap welded joints in a laboratory. The crack length considerably depended on the strain rates. The effect of boron contents in glass fiber tape backing was not so significant to the solidification cracking tendency under normal welding procedures.
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