Published August 2009 | Version v1
Journal article Metadata-only

Analysis of hydrogen in carbon steels with various structures

Creators

  • 1. Fukui Univ. of Technology, Fukui (Japan)
  • 2. Fukui Senior High School, Fukui (Japan)

Description

We prepared the 0.19%C carbon steel specimens, which were heat-treated at 200-900degC after cold-rolling. The specimens were charged with hydrogen by cathodic polarization, and hydrogen in the specimens was analyzed by using the melting extraction method (MEM) and the thermal desorption spectroscopy (TDS). The hydrogen concentration measured by MEM was larger in the specimens heat-treated at higher temperatures. This indicates that specimen structure effects on the concentration and diffusion coefficient of hydrogen. In the thermal spectrum of hydrogen evolution rate measured by TDS, several peaks were observed. The peaks were concluded to be due to the evolution of hydrogen atoms trapped by dislocations, interfaces of cementite/ferrite and grain boundaries. (author)

Additional details

Publishing Information

Journal Title
Fukui Kogyo Daigaku Kenkyu Kiyo
Journal Issue
no.39
Journal Page Range
p. 83-90
ISSN
0286-8571

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
43039836
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CARBON STEELS; CEMENTITE; CHEMICAL ANALYSIS; DISLOCATIONS; FERRITE; HEAT TREATMENTS; HYDROGEN; MELTING; PEARLITE; TEXTURE
Descriptors DEC
ALLOYS; CARBIDES; CARBON ADDITIONS; CARBON COMPOUNDS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELEMENTS; INTERMETALLIC COMPOUNDS; IRON ALLOYS; IRON BASE ALLOYS; IRON CARBIDES; IRON COMPOUNDS; LINE DEFECTS; NONMETALS; PHASE TRANSFORMATIONS; STEELS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
17 refs., 6 figs.