Testing New Weld Products at the Facility for Accelerated Service Testing

Transportation Technology Center, Inc., which regularly tests new or improved rail welding projects that are submitted by industry vendors, has recently tested two new weld products: the head alloyed weld and the head defect repair (HDR). The head alloyed weld was developed to provide increased weld running surface hardness in high-strength rails while the HDR developed an electric flash railhead repair weld that enables repair of defects while preserving the stress-free temperature of the rail. The head alloyed weld is a thermite weld that better matches the surface hardness of high-strength while maintaining the strength of a standard weld in the base. The HDR weld allows repair of railhead defects without cutting the full cross section of the rail, thus preserving the stress-free temperature of the rail. The head alloy thermite welds showed improved resistance to wear compared to standard unalloyed thermite welds while the HDR welds tended to be more sensitive to stress concentrators under the railhead.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1763403
• Authors:
  • Gutscher, Daniel
  • LoPresti, Joseph
• Publication Date: 2013-6

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos;
• Pagination: pp 15-17
• Serial:
  • Railway Track and Structures
  • Volume: 109
  • Issue Number: 6
  • Publisher: Simmons-Boardman Publishing Corporation
  • ISSN: 0033-9016

Subject/Index Terms

• TRT Terms: Hardness; Railhead; Railroad tracks; Rolling contact; Thermit welding; Welded rail
• Subject Areas: Maintenance and Preservation; Railroads; I60: Maintenance;

Filing Info

• Accession Number: 01484862
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 25 2013 8:57AM