Dual phase titanium alloy hot forging process design: experiments and numerical modeling

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    5 Citations (Scopus)

    Abstract

    Titanium alloys are considered desirable materials when both good mechanical properties and weight reduction are required at the same time. This class of materials is widely used in those fields (aeronautics, aerospace) in which common steels and light-weight materials, e.g., aluminum alloys, are not able to satisfy all operative service conditions. During the last decade, forging of titanium alloys has attracted greater attention from both industrial and scientific/academic researchers because of their potential in providing a near net shaped part with minimal need for machining. In this paper, a numerical model of the forging sequences for a Ti-6Al-4V titanium alloy aerospace component is presented. The model was tested and validated against experimental forgings. The model is then applied to predict loads final microstructure and defects of an aeronautical component. In addition to metal flow and die stresses, microstructural transformations (α and β phases) are considered for the determination of proper process parameters. It is found that transformation from α/β to β phase during forging and reverse transformations in post-forge cooling needs to be considered in the computational model for reasonable prediction of forging loads and product properties.
    Original languageEnglish
    Pages (from-to)269-281
    Number of pages13
    JournalAdvances in Manufacturing
    Volume3
    Publication statusPublished - 2015

    All Science Journal Classification (ASJC) codes

    • Mechanics of Materials
    • Industrial and Manufacturing Engineering
    • Polymers and Plastics
    • Mechanical Engineering

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