Access the full text.
Sign up today, get DeepDyve free for 14 days.
J. Guo, L. Zhou (1996)
The Effect of Phosphorus, Sulphur and Silicon on Segregation, Solidification and Mechanical Properties in Cast Alloy 718Superalloys
(1999)
Poirie, Metall
Modeling of the microsegregation in CMSX - 4 superalloy and its homogenization during heat treatment
(2012)
Schematic diagram of MC carbide formation of the alloys without and with P addition during solidification
Solidification characteristics and segregation behavior of a P-containing Ni–Fe–Cr-based alloy, considered as boiler and turbine materials in 700 °C advanced ultra-supercritical coal-fired power plants, have been investigated by differential thermal analysis and directional solidification quenching technique. Results reveal that P decreases the solidus temperature, but only has negligible influence on liquidus temperature. After P was added, the solidification sequence has no apparent change, but the width of the mushy zone increases and dendritic structures become coarser. Moreover, P increases the amount and changes the morphology of MC carbide. Energy-dispersive spectroscopy analysis reveals that P has obvious influence on the segregation behavior of the constitute elements with equilibrium partition coefficients ( $$k_{i}$$ k i ) far away from unity, whereas has negligible effect on the constituent elements with $$k_{i}$$ k i close to unity and has more influence on the final stage of solidification than at early stage. The distribution profiles reveal that P atoms pile up ahead of the solid/liquid (S/L) interface and strongly segregate to the interdendritic liquid region. The influence of P on solidification characteristics and segregation behavior of Ni–Fe–Cr-based alloy could be attributed to the accumulation of P ahead of the S/L interface during solidification.
Applied Physics A: Materials Science Processing – Springer Journals
Published: Aug 20, 2017
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.