Browsing by Author "Vogel, Sven C."

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Phase Stress Partition in Gray Cast Iron UsingIn SituNeutron Diffraction Measurements
(1970-01-01)
Tu-Ngoc Lam
;
Wu, Szu-Chien
;
Chae, Hobyung
;
Chen, Shi-Wei
;
Jain, Jayant
Gray cast iron comprises alpha-Fe, Fe3C and graphite with their different anisotropies in terms of structure and mechanical behavior. We perform two different deformation paths as tension-compression and compression-tension on bulk gray iron to capture the stress partitioning. Usingin situneutron diffraction, the composite-like deformation behaviors of alpha-Fe and Fe3C are revealed simultaneously. Within the elastic deformation stage, both deformation paths do not cause load transfer. However, when the applied compressive stress exceeds 300 MPa, there is a clear load sharing in both paths. From microscopic examinations, the debonding between matrix and graphite is clarified.