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A ferrite stainless steel Cr27Mo6Al3Cu with oxidation resistance
Highlights ► A new ferrite steel Cr27Mo6Al3Cu has been developed. ► This steel maintains a single BCC lattice. ► This steel exhibits excellent oxidation resistance at 1373K. ► This steel shows good corrosion resistance in 3.5wt.% NaCl.
Abstract A new ferrite steel Cr27Mo6Al3Cu with high Mo and low Al is developed, exhibiting excellent oxidation resistance, corrosion resistance, and mechanical property. Alloy rods with a diameter of 10mm were prepared by copper mold suction-casting method and then solution-treated at 1373K for 2h. The experimental results show that this alloy maintains a stable monolithic BCC microstructure. After oxidization at 1373K for 100h, a dense and thin oxide layer is generated on the surface of the alloy with the weight gain per unit area G + being about 0.4863g/m2. Its corrosion-resistant property in 3.5wt.% NaCl at 298K is characterized with the corrosion potential Ecorr being about −0.091V, pitting corrosion potential Eb reaching up to 0.867V. Its mechanical properties are yield tensile strength σ 0.2 =523MPa, ultimate tensile strength σb =637MPa respectively.
A ferrite stainless steel Cr27Mo6Al3Cu with oxidation resistance
Highlights ► A new ferrite steel Cr27Mo6Al3Cu has been developed. ► This steel maintains a single BCC lattice. ► This steel exhibits excellent oxidation resistance at 1373K. ► This steel shows good corrosion resistance in 3.5wt.% NaCl.
Abstract A new ferrite steel Cr27Mo6Al3Cu with high Mo and low Al is developed, exhibiting excellent oxidation resistance, corrosion resistance, and mechanical property. Alloy rods with a diameter of 10mm were prepared by copper mold suction-casting method and then solution-treated at 1373K for 2h. The experimental results show that this alloy maintains a stable monolithic BCC microstructure. After oxidization at 1373K for 100h, a dense and thin oxide layer is generated on the surface of the alloy with the weight gain per unit area G + being about 0.4863g/m2. Its corrosion-resistant property in 3.5wt.% NaCl at 298K is characterized with the corrosion potential Ecorr being about −0.091V, pitting corrosion potential Eb reaching up to 0.867V. Its mechanical properties are yield tensile strength σ 0.2 =523MPa, ultimate tensile strength σb =637MPa respectively.
A ferrite stainless steel Cr27Mo6Al3Cu with oxidation resistance
Li, Baozeng (author) / Wang, Qing (author) / Wang, Yingmin (author) / Qiang, Jianbing (author) / Li, Xiaona (author) / Ji, Chunjun (author) / Guo, Xiaolei (author) / Dong, Chuang (author) / Zuo, Liqiang (author)
2012-04-03
5 pages
Article (Journal)
Electronic Resource
English
A ferrite stainless steel Cr27Mo6Al3Cu with oxidation resistance
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