Development of High Strength Ti-Cu based alloys with Equiaxed Grain Growth Produced via Plasma Metal Deposition

Ella Staufer, Christian Edtmaier, Elisabeth Ballok, Jelena Horky, Thomas Klein, Duyao Zhang, Mark Easton, Martin Schmitz-Niederau

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

Abstract

The growing demand for titanium alloys, particularly in the aerospace industry, arises from their remarkable strength-to-weight ratio. However, the commonly used Ti-6Al-4V (Ti64) alloy exhibits columnar grain growth after additive manufacturing, such as powder bed fusion or direct energy deposition, resulting in anisotropic mechanical properties. To overcome this, Ti-Cu-based alloys are introduced for equiaxed grain growth, but their mechanical properties fell short of Ti64. Ternary and quaternary alloying elements (Fe and Cr) are incorporated to enhance mechanical properties. Firstly, several alloys (Ti-6.5Cu-xCr-yFe) produced via powder hot-extrusion exhibit promising microstructure under light microscopy and SEM. Hardness and tensile strength are improved, even exceeding the tensile strength of Ti64. The most promising ones underwent the blown-powder Plasma Metal Deposition process for in-situ alloying, revealing fine microstructures, equiaxed grains, and increased tensile strength. These findings highlight their potential for aerospace applications, presenting isotropic mechanical properties and dense samples.

Original languageEnglish
Title of host publicationProceedings - Euro PM 2024 Congress and Exhibition
PublisherEuropean Powder Metallurgy Association (EPMA)
ISBN (Electronic)9781899072583
DOIs
Publication statusPublished - 2 Oct 2024
Event2024 European Powder Metallurgy Congress and Exhibition, Euro PM 2024 - Malmo, Sweden
Duration: 29 Sept 20242 Oct 2024

Publication series

NameProceedings - Euro PM 2024 Congress and Exhibition

Conference

Conference2024 European Powder Metallurgy Congress and Exhibition, Euro PM 2024
Country/TerritorySweden
CityMalmo
Period29/09/242/10/24

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Surfaces and Interfaces

Fingerprint

Dive into the research topics of 'Development of High Strength Ti-Cu based alloys with Equiaxed Grain Growth Produced via Plasma Metal Deposition'. Together they form a unique fingerprint.

Cite this