Accession Number:

ADA183566

Title:

Advanced Processing and Properties of High Performance Alloys.

Descriptive Note:

Technical rept. no. 6, 1 May 86-31 Jan 87,

Corporate Author:

PENNSYLVANIA STATE UNIV UNIVERSITY PARK DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s):

• Koss,D. A.

Report Date:

1987-02-01

Pagination or Media Count:

41.0

Abstract:

Progress is reviewed for a research program whose purpose is to establish a broad-based understanding of the application and consequences of advanced processing techniques, especially as they influence the strength and fracture resistance of high performance structural alloys. While some of the research is specific to a certain ally systems, many aspects of the program constitute fundamental studies of the deformation and fracture of engineering alloys containing processing - induced defects. Progress for the period May 1, 1986 to January 31, 1987 is reviewed for te following projects within program 1the mechanism of voidpore linking in ductile fracture, 2the influence of porosity on low cycle fatigue, 3 the deformation of rapidly solidified Ti alloys at elevated temperatures, 4 strain-path effects on fracture, and 5hot isostatic pressing of metallic powders. Keywords Processing, Fracture mechanisms, VoidPore linking, low cycle fatigue, rapidly solidified alloys, Ti alloys, hot isostatic pressing HIP, strain-path effects.

Descriptors:

• *ALLOYS
• *FRACTURE(MECHANICS)
• *PHYSICAL METALLURGY
• *POWDER METALLURGY
• *ALUMINUM ALLOYS
• *STEEL
• *BRASS
• *TITANIUM ALLOYS
• PROCESSING
• DEFORMATION
• RESISTANCE
• STRUCTURAL PROPERTIES
• METHODOLOGY
• HIGH TEMPERATURE
• ENGINEERING
• HOT PRESSING
• ISOSTATIC PRESSING
• DEFECTS(MATERIALS)
• POWDER METALS
• SOLIDIFICATION
• CYCLES
• FATIGUE
• POROSITY

Subject Categories:

• Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE