Study on the weldability of Ni base superalloy, (9)

In this study, the improvement of hot crack sensitivity of B-1900 was investigated on the basis of the experimental results in regard to the effct of C contet on the hot crack sensitivity of Inconel 713C.According to the results, it was made clear that the crystallization of white constituents was arrested with increasing C content and the hot crack sensitivity of B-1900 under low restraint conditions could be decreased by increasing C content.