Steel alloy development continues to provide opportunities for foundries to enter new markets. However, traditional approaches to alloy development leave the examination of manufacturing issues for the later stages of development. Bringing casting considerations earlier in the development cycle should save money and time bringing new alloys to market. The hot tearing tendency of an alloy can be predicted during the early stages of alloy design. A hot cracking index was used to compare hot tearing tendency in both previous research and from experiments poured as part of this work. Cone castings were employed to create hot tears in three different alloys. The index predicted the same pattern as the observed hot tears. Interestingly, the freezing range also correlated with the hot tearing tendency of the steels. Therefore, it appears that the hot tearing behavior of an alloy can be predicted during the early alloy development stage.
Speakers:
Robert Tuttle, Western Michigan University
This AFS Members Only Webinar will begin at 1 p.m. CT.