Clarkson University Ph.D. candidate Fatemeh Hejripour recently presented research at a symposium sponsored by the American Society for Testing and Materials (ASTM) Committee E04 on Metallography.
Hejripour is working in Professor Daryush Aidun’s Welding Research Group. The research group, in addition to weldability of dissimilar alloys, is also working on wire arc additive manufacturing (WAAM), which is a new technology in rapid prototyping.
Metallography is a standard way of preparing samples for microstructural examination by optical and electron microscopy. Committee E04 on Metallography is the jurisdiction over standard methods in the field of metallography, the development of methods for the preparation of specimens for metallographic procedures, microscopy, and mechanical examinations.
Hejripour presented on the “Arc Weldability of Alloy 410 to Alloy 718” as part of the student presentation contest.
“I presented challenges in metallography procedure of dissimilar metals welding between stainless steel 410 and Nickel base super alloy 718. The presentation was associated with the investigation of mechanical properties as well. The audiences were representatives from companies and faculties from other universities,” Hejripour explained.
In addition t the metallurgy of welds, computational fluid dynamics (CFD) simulation of the weld pool is another aspect of Hejripour’s research. She may also attend a Symposium on Fatigue and Fracture of Additive Manufactured Materials and Components sponsored by ASTM Committees E08 on Fatigue and Fracture and F42 on Additive Manufacturing Technologies.
The symposium, which commemorated 100 Years of E04 Development of Metallographic Standards, was held Nov. 15 and 16 at the Hyatt Regency Atlanta in Atlanta, GA.