Prediction of the Microstructure Morphology and Tensile Properties in Titanium Alloy
Aubert & Duval produces parts for Aircraft Companies. Today the dimensioning methods of the parts change and the mechanical requirements increase more and more in order to be able to control the mechanical performances and the microstructure everywhere into the parts. Also, the development of predictive model is necessary. The thermomechanical path into the part is calculated by standard numerical software as Forge 3D but the relationship between the mechanical performances, the microstructure and the temperature and deformation used during the process are not clearly established. From its background on titanium parts and from a specific experimentation plan, Aubert& Duval has developed a phenomenological model to predict the mechanical performances into the parts in Ti64 or in Til023. Long campaigns of metallographic and SEM investigations and image analysis were performed to measure and count the distribution and the sizes of the α-laths and nodules to correlate them to the associated tensile properties. So the thermomechanical path, the microstructure and the tensile performances are together known. This paper presents one possible application of this model in order to predict the mechanical characteristics into the part versus the technique of forging for parts in Ti64 and Til023.
Ti64 (TA6V) Til 023 microstructure tensile properties fracture toughness crack propagation rates
Marion Bessagnet Christophe Daffos Stéphane Hollard Philippe Héritier
Aubert & Duval,09100 Pamiers,France
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
1952-1956
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）