Effect of Carbonitriding in a Salt Bath by a QPQ Scheme on Stainless Steel 321 Microstructure and Service Properties

• DOI: 10.1007/s11041-016-0019-3
• Publication Date: 2016-10-05T01:14:22Z
• Authors: L. Bellas; G. Castro; L. Mera; J. L. Mier; A. García; A. Varela
• Keywords: 02 engineering and technology; 0210 nano-technology

Wear resistance, corrosion properties and structure of reinforced layers deposited on steel AISI 321 with carbonitriding by the quench-polish-quench (QPQ) Tennifer® process with subsequent oxidation are studied. The structure of the layers is investigated by scanning electron microscopy with energy dispersive local analysis and x-ray diffractometry. Steel wear resistance is determined by a pin-on disk test, and oxide layer adhesion is determined by a scratch method. Pitting corrosion resistance is determined by plotting cyclic polarization curves.