On the corrosion fatigue behavior of a modified SAE 4135 type steel in a H/sub 2/S environment

Journal Article · Mon Aug 01 04:00:00 EDT 1983 · Metall. Trans., A; (United States)

DOI:https://doi.org/10.1007/BF02654402· OSTI ID:6551805

Tsukada, K; McEvily, A J; Minakawa, K

The corrosion fatigue behavior of a modified SAE 4135 steel in a H/sub 2/S environment is compared to that of a standard SAE 4135 steel of the same strength level. The modification consists of an increase in molybdenum content from 0.20 to 0.75 pct and the addition of 0.036 pct columbium. It was found that the high cycle fatigue strength of the modified steel was 66 pct higher than that of the standard steel. The improvement is attributed to an increase in resistance to hydrogen embrittlement brought about by a higher tempering temperature which reduces the amount of phosphorous on grain boundaries, as well as the beneficial scavenging effects associated with the increase in molybdenum content and the presence of columbium.

• Research Organization: Univ. of Connecticut, Storrs, CT
• OSTI ID: 6551805
• Journal Information: Metall. Trans., A; (United States), Journal Name: Metall. Trans., A; (United States) Vol. 14A:8; ISSN MTTAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
CHALCOGENIDES
CORROSION FATIGUE
CORROSIVE EFFECTS
ELEMENTS
EMBRITTLEMENT
FATIGUE
HEAT TREATMENTS
HYDROGEN COMPOUNDS
HYDROGEN EMBRITTLEMENT
HYDROGEN SULFIDES
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
METALS
MOLYBDENUM
NIOBIUM
NONMETALS
PHOSPHORUS
QUANTITY RATIO
SCAVENGING
STEELS
SULFIDES
SULFUR COMPOUNDS
TEMPERATURE EFFECTS
TEMPERING
TRANSITION ELEMENTS