Nitrided surface layers are synthesized on specimens of an 18 wt.% maraging steel. The nitrided layers are hard and are metallurgically bonded to the surface. The strength of the layers is superior if the material is deformed and aged prior to nitriding process. The grains are textured and are finer than the grains in layers on annealed material. Contrary to the layers on annealed material. no cracks are observed in deformed and aged specimens. The layer is predominantly γ′-Fe3N phase.

A. Tauqir

Papers

Prior Thermomechanical Treatment Improves Nitrided Layer Strength