Abstract
Gleeble simulation studies of the effects of welding on the microstructural change of four FeAl-based materials with Mo, Zr, C, and B additions based on light optical metallography and x-ray diffraction techniques have been undertaken. These materials, designated Fe-Al-Mo (heat 564), Fe-Al-Mo-B (heat 565), Fe-Al-Mo-Zr-C (heat 567), and Fe-Al-Mo-Zr-C-B (heat 568), exhibit behaviors suggesting that the additions of B, Zr, and C are beneficial (individually or in combination) to the resistance of cracking following-weld thermal cycles. The microstructure is significantly altered due to the addition of Zr and C. The relation and correlation between the effects of minor alloying elements on FeAl materials and weldability is established. Published by Elsevier Science Inc.
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