Materiales 2
Páginas: 3 (634 palabras)
Publicado: 10 de noviembre de 2010
TAREA DE MATERIALES II
Nombre: Néstor Ulloa
Código: 5811
Weld ability of a Corrosion-Resistant
Ni-Cr-Mo-Cu Alloy
Copper addition to a Ni-Cr-Mo alloy does not harm
weldability, according toVarestraint test results
M. D. ROWE, P. CROOK, AND G. L. HOBACK
ABSTRACT.
Corrosion-resistant alloys based on the Ni-Cr-Mo system are used in
demanding applications in chemical process,pollution control, and other industries.
The ability to make sound welds in these alloys with adequate corrosion resistance
is critical for their use in most applications. Varestraint weldability testingwas carried out on a Ni-Cr-Mo-Cu alloy, HASTELLOY® C-2000® (UNS N06200).
Mechanical testing was conducted on weldments. Immersion corrosion tests
were performed on all-weld-metal coupons of C-2000alloy in various environments, including hydrochloric, hydrofluoric, and sulfuric acids, with other Ni-
Cr-Mo alloys included for comparison.
The resistance of C-2000 alloy to solidificationcracking was similar to other Ni-Cr-
Mo alloys that are considered to be quite weldable, including C-22® and C-276.
Alloy C-2000 differs from other modern Ni-Cr-Mo alloys in that it contains 1.6
wt-%copper. Copper does not have a detrimental effect on the resistance of the
alloy to solidification cracking. C-2000 alloy weld metal met the minimum tensile
strength requirements of the base metal andwas very ductile, passing 2 T and 1.5 T transverse bend tests. The corrosion rate of Alloy C-2000 weld metal was lower than that of the C-276 and C-22 alloys in hydrochloric, hydrofluoric, and dilutesulphuric acids, similar to that of the C-22 alloy in ASTM G28A solution, and similar to that of C-276 alloy in ASTM G28B solution
and concentrated sulfuric acid.
Traducción
Las aleacionessoldables de Ni-Cr-Mo resistentes a la corrosión
El aumento de cobre a Ni-Cr-Mo no daña las aleaciones soldables, acorde a las variaciones de los resultados de las pruebas. M. D. ROWE, P. CROOK, AND...
Nombre: Néstor Ulloa
Código: 5811
Weld ability of a Corrosion-Resistant
Ni-Cr-Mo-Cu Alloy
Copper addition to a Ni-Cr-Mo alloy does not harm
weldability, according toVarestraint test results
M. D. ROWE, P. CROOK, AND G. L. HOBACK
ABSTRACT.
Corrosion-resistant alloys based on the Ni-Cr-Mo system are used in
demanding applications in chemical process,pollution control, and other industries.
The ability to make sound welds in these alloys with adequate corrosion resistance
is critical for their use in most applications. Varestraint weldability testingwas carried out on a Ni-Cr-Mo-Cu alloy, HASTELLOY® C-2000® (UNS N06200).
Mechanical testing was conducted on weldments. Immersion corrosion tests
were performed on all-weld-metal coupons of C-2000alloy in various environments, including hydrochloric, hydrofluoric, and sulfuric acids, with other Ni-
Cr-Mo alloys included for comparison.
The resistance of C-2000 alloy to solidificationcracking was similar to other Ni-Cr-
Mo alloys that are considered to be quite weldable, including C-22® and C-276.
Alloy C-2000 differs from other modern Ni-Cr-Mo alloys in that it contains 1.6
wt-%copper. Copper does not have a detrimental effect on the resistance of the
alloy to solidification cracking. C-2000 alloy weld metal met the minimum tensile
strength requirements of the base metal andwas very ductile, passing 2 T and 1.5 T transverse bend tests. The corrosion rate of Alloy C-2000 weld metal was lower than that of the C-276 and C-22 alloys in hydrochloric, hydrofluoric, and dilutesulphuric acids, similar to that of the C-22 alloy in ASTM G28A solution, and similar to that of C-276 alloy in ASTM G28B solution
and concentrated sulfuric acid.
Traducción
Las aleacionessoldables de Ni-Cr-Mo resistentes a la corrosión
El aumento de cobre a Ni-Cr-Mo no daña las aleaciones soldables, acorde a las variaciones de los resultados de las pruebas. M. D. ROWE, P. CROOK, AND...
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