Accession Number:

AD0618681

Title:

EFFECTS OF ALLOYING UPON CERTAIN PROPERTIES OF 55.1 NITINOL

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE LAB WHITE OAK MD

Report Date:

1965-05-28

Pagination or Media Count:

38.0

Abstract:

Ternary alloys of the intermetallic compound TiNi were hot hardness tested. Although hardness can be increased by such alloying, neither the base material nor the alloys offer promise for long time service use above 800F. silicon, aluminum, iron, and cobalt are effective room temperature hardeners. A unique interfacial compatibility between TiNi and tungsten bulk metal was discovered. It is believed that this will enable introduction of a new metal- metal composite system of fibrous tungsten in a Nitinol matrix. A rod of such material is shown to be capable of room temperature swaging, suggesting improved methods of working highly refractory metals. Silver-free TiNi brazing alloys for joining tungsten metals are a natural result of such compatibility.

Subject Categories:

  • Inorganic Chemistry
  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE