High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
Publicado 4 números por año
ISSN Imprimir: 1093-3611
ISSN En Línea: 1940-4360
IF:
0.4
Immediacy Index:
0.1
Eigenfactor:
0.00005
JCI:
0.07
SJR:
0.198
SNIP:
0.48
CiteScore™::
1.1
H-Index:
20
Indexed in
ROLE OF MICROSTRUCTURE INFLUENCING ON THE METHANE BUBBLE FORMATION IN THE HEAT-AFFECTED ZONE OF 3Cr-1Mo-0.25V STEEL
Volumen 6,
Edición 2, 2002,
18 pages
DOI: 10.1615/HighTempMatProc.v6.i2.10
SINOPSIS
Methane bubble formation in a 3Cr-lMo-0.25V steel was investigated in association with carbides formation and prior austenite grain size. The reaction between hydrogen and carbon arises the formation of methane bubbles affected by carbides as well as the prior austenite grain size. The formation of stable carbides through heat treatments led to the lowering carbon activity, and thereby giving rise to improved resistance to hydrogen attack. When the steel has larger prior austenite grain size and the larger occupancy of carbides on grain boundary, the severe hydrogen attack occurred due to the reduction of total grain boundary areas relative to the amount of bubbles.
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