Delta ferrite-containing austenitic stainless steel resistant to the formation of undesirable phases upon aging

Patent · Tue May 05 04:00:00 EDT 1981

OSTI ID:6071292

Leitnaker, J M

Austenitic stainless steel alloys containing delta ferrite, such as are used as weld deposits, are protected against the transformation of delta ferrite to sigma phase during aging by the presence of carbon plus nitrogen in a weight percent 015-0.030 times the volume percent ferrite present in alloy. The formation of chi phase upon aging is controlled by controlling the mo content.

• Assignee: Department of Energy
• Patent Number(s): US 4265983
• OSTI ID: 6071292
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
AUSTENITIC STEELS
CARBON ADDITIONS
CHEMICAL COMPOSITION
FERRITE
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HIGH TEMPERATURE
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MATERIALS
STEELS
WELDED JOINTS