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Grain refinement and fatigue strengthening mechanisms in as-extruded Mg-6Zn-0.5Zr and Mg-10Gd-3Y-0.5Zr magnesium alloys by shot peening

Abstract:

This paper studies the fatigue properties and fracture behavior of as-extruded Mg-6Zn-0.5Zr and Mg-10Gd-3Y-0.5Zr alloys before and after shot peening. Compared to Mg-6Zn-0.5Zr alloy, Mg-10Gd-3Y-0.5Zr alloy shows higher optimal Almen intensity, and possesses a broader process window. The stress-controlled rotating bending fatigue property improvement for Mg-10Gd-3Y-0.5Zr alloy by shot peening is significantly superior to that of Mg-6Zn-0.5Zr alloy. With the increase in peening (Almen) intensit...

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Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science
Role:
Author
Journal:
INTERNATIONAL JOURNAL OF PLASTICITY
Volume:
49
Pages:
16-35
Publication date:
2013-10-05
DOI:
ISSN:
0749-6419
URN:
uuid:4f8a9f8d-e303-4b74-8505-4e9d71f5e4b5
Source identifiers:
395839
Local pid:
pubs:395839

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