Processing and consolidation of rapidly solidified alloys: a technology assessment. [Reduced Cr usage in stainless steels]

Technical Report · Fri Jun 01 04:00:00 EDT 1984

OSTI ID:6789627

Flinn, J E

A review and evaluation were performed on rapid solidification technology (RST). This technical assessment focused on strategic and critical materials, particularly involving chromium utilization in austenitic stainless steels. RST could provide significant reduced usage of chromium in stainless steels. Beneficial features include improved chemical homogeneity, fine structures, extended solute solubility, and metastable phases. Methods for producing rapidly solidified materials were assessed and appear to cover a wide range of cooling rates, 10/sup 1/ to 10/sup 7/ K/s. The fundamentals associated with rapid solidification processing (RSP) are not well understood. Areas requiring in-depth study include the role of constituents in alloys, nonequilibrium aspects of phase diagrams, nucleation and growth phenomena, contribution and roles of undercooling and solidification rate, metastable phase behavior and stabilization, processing diagnostics, and structure/property correlations with processing parameters.

• Research Organization: EG and G Idaho, Inc., Idaho Falls (USA)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 6789627
• Report Number(s): EGG-SCM-6595; ON: DE84014673
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
BIBLIOGRAPHIES
CHROMIUM
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
DOCUMENT TYPES
ELEMENTS
IRON ALLOYS
IRON BASE ALLOYS
METALLURGY
METALS
PHASE TRANSFORMATIONS
PROCESSING
SOLIDIFICATION
STAINLESS STEELS
STEELS
TECHNOLOGY ASSESSMENT
TRANSITION ELEMENTS