Enhancement of the Crack Resistance of Manganese Cast Irons期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Enhancement of the Crack Resistance of Manganese Cast Irons

Authors:	O I Balyts’kyi V O Kolesnikov E Kubicki

Affiliation:	(1) Karpenko Physicomechanical Institute, Ukrainian Academy of Sciences, Lviv, Ukraine;(2) Dal’ East-Ukrainian National University, Luhans’k, Ukraine;(3) Institute of Materials Engineering, Politechnika Szczecinska, Szczecin, Poland

Abstract:	We have determined the parameters of static $(K_{IC} = 30 - 44MPa\sqrt m )$ and cyclic crack resistance of austenitic manganese irons $(\Delta K_{th} = 4.7 - 6.3MPa\sqrt m ,\quad \Delta K_{fc} = 35 - 44MPa\sqrt m )$ . The results obtained were compared with literature data. High K _IC values in the alloys under consideration were reached owing to the refining action of calcium. We have studied the micromechanism of fracture of these materials with the use of modern methods of investigation. We have shown that the parameters of the graphitic phase as well as the toughness and plasticity of the metal matrix affect the breaking strength significantly.__________Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 41, No. 1, pp. 63 – 68, January – February, 2005.

Keywords:
本文献已被 SpringerLink 等数据库收录！