Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fatigue and Fracture Behavior of Affordable Ti-B Alloys
In this project, we have examined the mechanical properties of the Ti-6Al-4V alloy with varying amounts of B content. The cast and HIPed alloys with 0.05, 0.10 and 0.4 wt.% B additions were supplied by Tamirisa and Miracle of AFRL, WPAFB. Microstructural observations indicate that the B addition reduces the as-cast grain size dramatically. Concomitantly, an increase in the yield and ultimate tensile strengths was observed. Fracture toughness measurements indicate a reduction in KIc values with increasing B content, owing primarily to the reduced grain size. Fatigue crack growth measurements show a gradual reduction in threshold for fatigue crack initiation. Fractographic analyses were conducted to examine the micromechanical reasons for the observed trends.
Fatigue and Fracture Behavior of Affordable Ti-B Alloys
In this project, we have examined the mechanical properties of the Ti-6Al-4V alloy with varying amounts of B content. The cast and HIPed alloys with 0.05, 0.10 and 0.4 wt.% B additions were supplied by Tamirisa and Miracle of AFRL, WPAFB. Microstructural observations indicate that the B addition reduces the as-cast grain size dramatically. Concomitantly, an increase in the yield and ultimate tensile strengths was observed. Fracture toughness measurements indicate a reduction in KIc values with increasing B content, owing primarily to the reduced grain size. Fatigue crack growth measurements show a gradual reduction in threshold for fatigue crack initiation. Fractographic analyses were conducted to examine the micromechanical reasons for the observed trends.
Fatigue and Fracture Behavior of Affordable Ti-B Alloys
U. Ramamurty (Autor:in) / I. Sen (Autor:in) / D. Miracle (Autor:in) / S. Tamirisa (Autor:in)
2006
21 pages
Report
Keine Angabe
Englisch
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