Long-Term Heat Treatments on Ti6Al4V-SiCf Composite. Part II - Mechanical Characterization

Paolo Deodati; Riccardo Donnini; Roberto Montanari; Claudio Testani; T. Valente

doi:10.4028/www.scientific.net/MSF.604-605.341

Paper Titles

Superplastic Deformation of Twin Roll Cast AZ31 Magnesium Alloy
p.267

Study of Hot Formability of High Nitrogen Martensitic Stainless Steel
p.279

Failure at Elevated Temperatures: Influence of Dynamic Restoration
p.285

Long-Term Heat Treatments on Ti6Al4V-SiC_f Composite. Part I - Microstructural Characterization
p.331

Long-Term Heat Treatments on Ti6Al4V-SiC_f Composite. Part II - Mechanical Characterization
p.341

Pre-Primary Stage of Low Strain Rate Creep in Metals
p.351

Constitutive Equations in Creep of the AE44 Magnesium Alloy
p.357

Creep Response and Microstructural Changes during Intermittent Heating of Advanced Tempered Martensitic 9-12%Cr Steels
p.367

Warm Formability of AZ31 Magnesium Alloy Sheets under Different Process Conditions
p.379

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Long-Term Heat Treatments on Ti6Al4V-SiC_f Composite. Part II - Mechanical Characterization

Abstract:

Ti6Al4V-SiCf composite, manufactured by Hot Isostatic Pressing (HIP) at Centro Sviluppo Materiali, has been submitted to long-term heat treatments (up to 1000 hours) at 400 and 600°C. The mechanical properties of the material, in as-fabricated condition and after heat treatments, have been investigated by instrumented indentation (FIMEC), dynamic modulus, tensile and fatigue tests. For comparison some experiments have been carried out also on the monolithic Ti6Al4V alloy. Results show that heat treatments, also the most severe examined here, do not produce remarkable variations of mechanical characteristics. In agreement with the microstructure examinations presented in part I, this behaviour, quite promising for future aeronautical applications, can be primarily ascribed to the stability of fibre-matrix interface.