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论文类型：期刊论文

发表时间：2010-08-01

发表刊物：MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION

收录刊物：SCIE、EI、Scopus

卷号：61

期号：8

页面范围：676-680

ISSN号：0947-5117

摘要：The behavior of oxide scales on Fe-20Cr alloy was investigated in constant load at 1173 K in air. The objective was to understand the effect of mechanical loading on the deformation of oxide scales. It was carried out mainly by comparison of surface morphologies of oxidized specimens observed by scanning electronic microscope (SEM). In all cases, the oxide scales formed on specimens without stress showed a flat surface. However, oxide scales formed on specimens after 20 h of oxidation under a stress of 8MPa (strain 3.07%) showed slip band characteristics. Furthermore, for longer oxidation time up to 65 h, slip bands formed under a low stress of 2 MPa (strain 1.19%), and grain boundary sliding became the main surface feature for the specimens subjected to a stress of 5 MPa (strain 2.53%). Two typical deformation forms are illustrated in the work.