Accession Number:

ADA305154

Title:

Fatigue Initiation Study of Investment CAST Ti-6A1-4V Alloy,

Descriptive Note:

Corporate Author:

NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD

Personal Author(s):

Report Date:

1995-11-01

Pagination or Media Count:

18.0

Abstract:

Investment cast Titanium and Aluminum Alloys save Materiallabortimecost compared to Wrought Material Navy Goal -- Improved Quality Investment - Cast Ti-6A1-4V parts for the V-22 program Fatigue-Critical Airframe Parts Fatigue initiation dominates lifetime Problem Areas of Castings Residual porosity, inclusions, and effective grain size Fatigue Initiation Microstructure Defect data required to optimize casting and HIPing parameters.

Subject Categories:

  • Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE