Chromiun-enriched oxide containing material and preoxidation method of making the same to mitigate corrosion and fouling associated with heat transfer components
    3.
    发明申请
    Chromiun-enriched oxide containing material and preoxidation method of making the same to mitigate corrosion and fouling associated with heat transfer components 失效
    富含氧化铬的氧化物材料和预氧化方法,以减少与传热组分相关的腐蚀和结垢

    公开(公告)号:US20070207329A1

    公开(公告)日:2007-09-06

    申请号:US11641750

    申请日:2006-12-20

    摘要: A heat transfer component that is resistant to corrosion and fouling is disclosed. The heat transfer component includes a heat exchange surface formed from a chromium-enriched oxide containing material formed from the composition δ, ε, and ζ, wherein ζ is a steel containing at least about 5 to about 40 wt. % chromium, ε is a chromium enriched oxide (M3O4 or M2O3 or mixtures thereof) formed on the surface of the steel ζ, wherein M is a metal containing at least 5 wt. % Cr based on the total weight of the metal M, and δ is a top layer formed on the surface of the chromium-enriched oxide ε, comprising sulfide, oxide, oxysulfide, and mixtures thereof. The top layer δ comprises iron sulfide (Fe1-xS), iron oxide (Fe3O4), iron oxysulfide, iron-chromium sulfide, iron-chromium oxide, iron-chromium oxysulfide, and mixtures thereof. The metal M of the chromium enriched oxide (M3O4 or M2O3 or mixtures thereof) may comprise Fe, Cr, and constituting elements of the steel ζ. The steel ζ may be selected from low chromium steels, ferritic stainless steels, martensitic stainless steels, austenitic stainless steels, duplex stainless steels and precipitation-hardenable alloys.

    摘要翻译: 公开了耐腐蚀和结垢的传热部件。 传热组件包括由组合物δ,ε和zeta形成的含铬富含氧化物材料形成的热交换表面,其中ζ是含有至少约5至约40wt。 %铬,ε是富含铬的氧化物(M 3 O 4 O 3或M 2 O 3 O 3或其混合物 ),其中M是含有至少5重量%的金属的金属。 %Cr,基于金属M的总重量,δ是在富含铬的氧化物ε的表面上形成的顶层,其包含硫化物,氧化物,氧硫化物及其混合物。 顶层δ包括硫化铁(Fe 1-x S),氧化铁(Fe 3 O 4 O 4),氧硫化铁,铁 - 硫化铬,氧化铁 - 氧化铬,氧硫化铁 - 及其混合物。 富含铬的氧化物(M 3 O 4 O 3或M 2 O 3)的金属M或其混合物) 可以包含Fe,Cr和钢ζ的构成元素。 钢ζ可选自低铬钢,铁素体不锈钢,马氏体不锈钢,奥氏体不锈钢,双相不锈钢和沉淀硬化合金。

    Silicon-containing steel composition with improved heat exchanger corrosion and fouling resistance
    4.
    发明申请
    Silicon-containing steel composition with improved heat exchanger corrosion and fouling resistance 失效
    含硅钢组合物具有改善的热交换器腐蚀和耐污垢性

    公开(公告)号:US20070178322A1

    公开(公告)日:2007-08-02

    申请号:US11641756

    申请日:2006-12-20

    IPC分类号: B32B15/04

    摘要: A heat transfer component that is resistant to both corrosion and fouling is disclosed having a heat exchange surface formed from a silicon containing steel composition including an alloy and a non-metallic film formed on a surface of the alloy. The alloy is formed from the composition η, θ, and ι, in which η is a metal selected from the group consisting of Fe, Ni, Co, and mixtures thereof, θ is Si, and ι is at least one alloying element selected from the group consisting of Cr, Al, Mn, Ti, Zr, Hf, V, Nb, Ta, Mo, W, Sc, La, Y, Ce, Ru, Rh, Ir, Pd, Pt, Cu, Ag, Au, Ga, Ge, As, In, Sn, Sb, Pb, B, C, N, P, 0, S and mixtures thereof. The non-metallic film comprises sulfide, oxide, carbide, nitride, oxysulfide, oxycarbide, oxynitride and mixtures thereof. The surface roughness of the heat transfer component is less than 40 micro inches.

    摘要翻译: 公开了一种耐腐蚀和结垢的传热组分,其具有由含有合金的含硅钢组合物形成的热交换表面和在合金表面上形成的非金属膜。 合金由组成eta,θ和iota形成,其中η是选自Fe,Ni,Co及其混合物的金属,θ是Si,iota是至少一种选自 由Cr,Al,Mn,Ti,Zr,Hf,V,Nb,Ta,Mo,W,Sc,La,Y,Ce,Ru,Rh,Ir,Pd,Pt,Cu,Ag,Au, Ga,Ge,As,In,Sn,Sb,Pb,B,C,N,P,O,S及其混合物。 非金属膜包括硫化物,氧化物,碳化物,氮化物,氧硫化物,氧化碳,氧氮化物及其混合物。 传热部件的表面粗糙度小于40微英寸。