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Method Of Preventing Intergranular Corrosion Of Stainless Steel Wire Rope

Ningbo Qiyi Precision Metals Co.,Ltd | Updated: Jan 10, 2017

1, reducing the carbon content of stainless steel wire rope, stainless steel carbon content lower than the balance in the saturated solubility in austenite under, from the fundamental solution to the chromium carbide (Cr23C6) on the grain boundary precipitation problem. Usually stainless steel wire rope of carbon in below 0.03% can meet the requirements of resistance to intergranular corrosion.

2, joining Ti, Nb, able to form a stable carbon (TiC or NbC) elements to avoid grain boundary precipitates Cr23C6, on anti-intergranular corrosion of austenitic stainless steel wire rope.

3, formed in austenitic stainless steel by adjusting element and ferrite formation ratio of elements to have the austenite + ferritic dual phase structure, including ferrite 5% a 12%. Have this dual-phase stainless steel wire rope not easily generated intergranular corrosion.

4, the use of an appropriate heat treatment process for preventing intergranular corrosion of stainless steel wire rope, to get the best corrosion resistance.

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