Hydrogen attack in Cr-Mo steels. [3Cr-1. 5Mo and 2. 25Cr-1Mo steels]

Conference · · TMS (The Metallurgical Society) Paper Selection; (USA)

OSTI ID:5442223

Ruoff, S; Stone, D; Wanagel, J; Li, C Y ^[1]

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1. Cornell Univ., Ithaca, NY (USA)

Experiments conducted upon 3Cr-1.5Mo steel at elevated temperatures (600 C), and high pressure hydrogen (2000 psi), have shown a greater resistence to hydrogen attack compared with similar studies of 2.25Cr-lMo steels. Hydrogen exposure tests with and without an applied stress have been performed on both types of steels. Results of similar conditions show clear evidence of hydrogen attack in 2.25Cr-lMo steel, however, for the 3Cr-1.5Mo steel with exposure time up to 80 days without an applied stress no evidence of hydrogen attack is observed. For stress-rupture tests using stresses of 14 and 16 ksi, the 3Cr-1.5Mo steel showed no effects of hydrogen attack, and no damage was observed using a SEM.

• OSTI ID: 5442223
• Report Number(s): CONF-840909-; CODEN: TMPSA
• Journal Information: TMS (The Metallurgical Society) Paper Selection; (USA), Vol. 56; Conference: TMS-AIME fall meeting, Detroit, MI (USA), 16-20 Sep 1984; ISSN 0197-1689
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CHROMIUM
METALLURGICAL EFFECTS
CHROMIUM-MOLYBDENUM STEELS
HYDROGEN EMBRITTLEMENT
MOLYBDENUM
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGEN
SCANNING ELECTRON MICROSCOPY
STRESSES
ELECTRON MICROSCOPY
ELEMENTS
EMBRITTLEMENT
METALS
MICROSCOPY
NONMETALS
TRANSITION ELEMENTS
360103* - Metals & Alloys- Mechanical Properties