About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
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Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
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Presentation Title |
The Effect of Build Height on the Metallurgical Characteristics of 17-4 PH Stainless Steel Manufactured through DED |
Author(s) |
Ipfi Mathoho, Powel Tshikalange, Nana Arthur |
On-Site Speaker (Planned) |
Ipfi Mathoho |
Abstract Scope |
Research in additive manufacturing (AM) technologies have brought into light many aspects of the industry. Many factors such as process parameters have been identified to influence the performance of built parts. This project investigates the effects of part geometry on the mechanical properties of 17-4 PH stainless steel produced through DED. specimens. Four coupons with varying heights: 5 mm, 10 mm, 15 mm, and 20 mm were printed using the same process parameters. The metallurgical characteristics investigated includes, porosity, microstructural evolution, microhardness and corrosion behaviour. It was found the build height does not have any meaningful effect on porosity, while on the otherhand it plays a role in the morphology of delta ferrite. With regards to microhardness and corrosion behavior, it was found that the former decreased due to increments of build height. While the corrosion resistance was found to deteriorate due to build height reduction. |