Alloy evaluation for fossil fuel process plants: liquefaction

Conference · Tue Jan 01 04:00:00 EST 1980

OSTI ID:6528579

Scott, T E

Since petroleum refinery pressure vessels are constructed of 2-1/4 Cr-1Mo steel (A387--74A-Gr.22-Cl.2) with a stainless steel weld overlay liner, it is anticipated that coal liquefaction dissolver vessels will be fabricated similarly. In the event the stainless steel liner is breached, the ferritic 2-1/4 Cr-1Mo steel shell will be exposed to the coal liquefaction environment. Consequently, the objective of this investigation is to evaluate the mechanical property integrity of liquefaction process plant dissolver vessel materials, especially 2-1/4 Cr-1Mo steel. During the past year, several aspects of the 2-1/4 Cr-1Mo steel evaluation have been in progress: these include electron-microprobe analysis of scales formed in the slurry-hydrogen environment, scaling rate measurements, low cycle fatigue of compact tension fracture mechanics specimens (CTS) at ambient temperature, crack growth of bolt-loaded CTS in slurry-hydrogen, calculation of phase stability diagrams relevant to coal liquefaction conditions, and hydrogen attack evaluations. Results to date are reported.

• Research Organization: Ames Lab., IA (USA)
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6528579
• Report Number(s): IS-M-322; CONF-801079-3; ON: DE81023615
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
36 MATERIALS SCIENCE
360100 -- Metals & Alloys
ALLOYS
CHEMICAL ANALYSIS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
COAL LIQUEFACTION PLANTS
CONTAINERS
CRACKS
DIAGRAMS
ELECTRON MICROPROBE ANALYSIS
ELEMENTS
FRACTURE PROPERTIES
GROWTH
HYDROGEN
INDUSTRIAL PLANTS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MECHANICAL PROPERTIES
METALLURGICAL EFFECTS
MICROANALYSIS
NONMETALS
PETROLEUM REFINERIES
PHASE DIAGRAMS
PRESSURE VESSELS
STEELS