Full-Field Strain Behavior of Friction Stir-Welded Titanium Alloy
Abstract
Titanium is an abundant elemental metal with an exceptional strength-to-weight ratio. Due to properties of high strength, low weight, high heat tolerance, and exceptional corrosion resistance, titanium alloys are used extensively in a number of industries, such as power production, mineral extraction, biomedical, marine, chemical processing, and, of particular interest here, aerospace. The aerospace industry is the single largest user of titanium, particularly Ti-6Al-4V which is considered the workhorse titanium alloy [1]. Unfortunately, the properties that make titanium so attractive for use also make it challenging to machine and join. This difficulty in joining poses particular problems for titanium alloy sheets, which are typically very limited in available sizes. Mechanical joining of titanium sheets requires strict vigilance to assure constant tool integrity and use of high-strength fasteners, which can be heavy and costly. Titanium is a highly reactive material making conventional fusion welding processes very difficult, though possible with proper preparations and precautions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2008
- Accession Number
- ADA483425
Entities
People
- Trent A. Greenwell
Organizations
- University of Washington