Mechanical and hardness evaluations of Fe–18Cr–18Mn alloys

Autor: N.W. Duttlinger, J.C. Rawers
Rok vydání: 2008
Předmět:
Zdroj: Materials Science and Technology. 24:97-99
ISSN: 1743-2847
0267-0836
DOI: 10.1179/174328407x248488
Popis: A series of Fe–18Cr–18Mn–N–C alloys was produced and evaluated to determine their mechanical and hardness properties. In one group, different levels of nitrogen and carbon were added to a base composition of Fe–18Cr–18Mn. The base Fe–18Cr–18Mn alloy had a fcc–bcc duplex microstructure. The addition of nitrogen and carbon stabilised the fcc phase. These alloys had increasing room temperature hardness, strength, and failure energy with increasing interstitial concentrations. At cryogenic and elevated temperatures, these alloys had increasing hardness (and by implication, increased strength) with increasing interstitial concentrations. In a second group, different levels of nitrogen and carbon were added to the base Fe–18Cr–18Mn composition to which minor solid solution additions of silicon, molybdenum, and nickel had been added. Minor alloy additions made only nominal improvement to mechanical and hardness properties. Nitrogen remained interstitial. However, these minor solid solution additions redu...
Databáze: OpenAIRE