Zn-Bath Corrosion Behavior of the Martensitic Stainless Steels (1.4095-Type) After Variation of the Si and Cr Content in Comparison to the Ferrite-Free 316L Type (1.4409.01)

The martensitic cast steel 1.4095 shows a good corrosion resistance in liquid Zn-bath in a temperature range up to T=480°C. In this study, the chemical composition of the 1.4095 material has been modified with respect to Si and Cr content. These modified alloys will be subjected to a static liquid corrosion test in a Zn-bath for different test durations and test temperatures. Additionally, the mechanical properties will be presented. The results are compared with the corrosion results of the ferrite free modified 316L. Afterwards the tested samples are evaluated by means of mass loss, optical microscopy and scanning electron microscopy.

Tobias Simon | Kuhn Special Steel
 

Frank Wischnowski | Kuhn Special Steel