Comportement des fontes blanches alliees dans les milieux corrosifs
Identifieur interne : 000B33 ( Main/Exploration ); précédent : 000B32; suivant : 000B34Comportement des fontes blanches alliees dans les milieux corrosifs
Auteurs : Ali Hadji [Algérie] ; Abdenacer Lemmoui [Algérie] ; Lev M. Romanov [Russie] ; Leonid Y. Kozlov [Russie]Source :
- Annales de chimie - Sciences des materiaux [ 0151-9107 ] ; 2000.
Abstract
Abstract: In this work the effect of the composition of white cast-iron on its corrosion resistance was evaluated by investigating the behaviour of the white cast-iron alloyed with chromium, chromium-manganese and chromium-manganese-vanadium and niobium in corrosive environment. The positive influence of Cr, Mn, Nb et V was evidenced. The effect of chromium on the corrosion resistance is linked to the quantity and the type of carbides that are formed within the cast iron and thus depends on its carbon content. The action of manganese is linked to its distribution between the carbides and the metallic matrix. By partially substituting Fe and chromium, it improves the corrosion resistance. The introduction of elements with a strong affinity towards carbon such as vanadium and niobium shifts the anodic curves to the side of the weak corrosion current. These elements induce a double effect : the improvement of the corrosion resistance and the structure refinement for a weak content of these elements.
Url:
DOI: 10.1016/S0151-9107(00)80007-0
Affiliations:
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The positive influence of Cr, Mn, Nb et V was evidenced. The effect of chromium on the corrosion resistance is linked to the quantity and the type of carbides that are formed within the cast iron and thus depends on its carbon content. The action of manganese is linked to its distribution between the carbides and the metallic matrix. By partially substituting Fe and chromium, it improves the corrosion resistance. The introduction of elements with a strong affinity towards carbon such as vanadium and niobium shifts the anodic curves to the side of the weak corrosion current. These elements induce a double effect : the improvement of the corrosion resistance and the structure refinement for a weak content of these elements.</div></front></TEI><affiliations><list><country><li>Algérie</li><li>Russie</li></country><region><li>District fédéral central</li></region><settlement><li>Moscou</li></settlement></list><tree><country name="Algérie"><noRegion><name sortKey="Hadji, Ali" sort="Hadji, Ali" uniqKey="Hadji A" first="Ali" last="Hadji">Ali Hadji</name></noRegion><name sortKey="Hadji, Ali" sort="Hadji, Ali" uniqKey="Hadji A" first="Ali" last="Hadji">Ali Hadji</name><name sortKey="Lemmoui, Abdenacer" sort="Lemmoui, Abdenacer" uniqKey="Lemmoui A" first="Abdenacer" last="Lemmoui">Abdenacer Lemmoui</name></country><country name="Russie"><region name="District fédéral central"><name sortKey="Romanov, Lev M" sort="Romanov, Lev M" uniqKey="Romanov L" first="Lev M." last="Romanov">Lev M. Romanov</name></region><name sortKey="Kozlov, Leonid Y" sort="Kozlov, Leonid Y" uniqKey="Kozlov L" first="Leonid Y." last="Kozlov">Leonid Y. Kozlov</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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