کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1583339 | 1514886 | 2007 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The influence of soft, precipitate-free zones at grain boundaries in Ti and Al alloys on their fatigue and fracture behavior The influence of soft, precipitate-free zones at grain boundaries in Ti and Al alloys on their fatigue and fracture behavior](/preview/png/1583339.png)
This paper discusses the effect of the presence of soft zones along grain boundaries in high-strength Al and β-Ti alloys. Soft zones are deformed preferentially and therefore have a strong effect on fracture related properties. The presentation focuses on the ductility, the high-cycle fatigue strength, and the fracture toughness. For microstructures with pancake-shaped grains, the anisotropy of the mechanical properties is discussed on the basis of the effective slip length, determined by the length of the soft grain boundary zones. In high-strength Al alloys, the presence of hard inclusions additionally affects the fracture behavior. For β-Ti alloys, the role of the strength difference between the age hardened matrix and the soft grain boundary layers is discussed.
Journal: Materials Science and Engineering: A - Volumes 468–470, 15 November 2007, Pages 201–209