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Abstract We report evidence of Re and Mo segregation (up to 2.6 at.% and 1 at.%) along with Cr and Co to the dislocations inside of γ' precipitates in a… Click to show full abstract
Abstract We report evidence of Re and Mo segregation (up to 2.6 at.% and 1 at.%) along with Cr and Co to the dislocations inside of γ' precipitates in a second generation Ni-based single crystal superalloy, after creep deformation at 750 °C under an applied stress of 800 MPa. The observed segregation effects can be rationalized through bridging the solute partitioning behavior across the γ/γ' interface and the pipe diffusion mechanism along the core of the dislocation line. This understanding can provide new insights enabling improved alloy design.
Keywords:
dislocations phase;
segregation dislocations;
single crystal;
phase based;
segregation;
based single
Journal Title: Materialia
Year Published: 2018
Link to full text (if available)
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Journal Title: Materialia
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!