Grinding Deformation Behavior of a Lamellar γ-TiAl Alloy
Jiale Qin, Mengxi Xu, Renci Liu, Yingying Shen, Zhiqiang Shan, Zuohai Zhu, Dong Liu, Yuyou Cui, Rui Yang
TL;DR
This paper studies how a specific titanium aluminide alloy deforms during grinding, revealing how surface structures bend and change based on grinding parameters.
Contribution
The study provides new insights into the deformation mechanisms of lamellar γ-TiAl alloys during grinding, including the bending behavior and deformation zones.
Findings
Surface lamellae bend during grinding, with bending angle φ influenced by lamellae orientation relative to grinding direction and surface normal.
Grinding depth primarily controls the lamellar deformation depth h.
Three distinct surface zones are identified: fine-equiaxed grain zone, bending lamella zone, and near-surface deformation zone with dislocation tangles.
Abstract
γ-TiAl alloys are susceptible to surface damage during grinding, deteriorating their mechanical properties during service. However, the underlying mechanism of surface microstructure deformation during grinding remains incompletely understood. This work systematically investigated the deformation behavior of surface lamellae in a Ti-45Al-2Nb-2Mn-1B (at.%) alloy during grinding. The surface lamellae exhibit bending after grinding, with the degree of bending angle φ depending on the orientation of the lamellae. The bending angle φ depends on both the angle between the lamellae interface normal and the grinding direction, and the angle between the lamellae interface normal and the grinding surface normal. The lamellar deformation depth h is primarily governed by the grinding depth. The surface of the sample after grinding can be divided into three distinct layers: a surface fine-equiaxed…
Genes, proteins, chemicals, diseases, species, mutations and cell lines named across the full text — each resolved to its canonical identifier and authoritative record.
Click any figure to enlarge with its caption.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsIntermetallics and Advanced Alloy Properties · MXene and MAX Phase Materials · Advanced materials and composites