Experimental and Theoretical Investigation of Three Alloy 690 Mockup Components: Base Metal and Welding Induced Changes

<table>Mole fraction of Ti(C,N) at equilibrium as a function of temperature for the three Alloy 690 compositions. The incipient melting of the matrix phase is indicated by the number 1. In all cases, the Ti(C,N) phase is stable up to and above the temperature of complete melting of the matrix, which is indicated by the number 2.</table>

International Journal of Nuclear Energy

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Figure 12

Figure 12: Experimental and Theoretical Investigation of Three Alloy 690 Mockup Components: Base Metal and Welding Induced Changes 