METHOD FOR ASSESSING THE STRUCTURAL DEGRADATION OF HEAT-RESISTING WROUGHT ALLOY STEELS,申请号RO20060000561-传众专利搜索

METHOD FOR ASSESSING THE STRUCTURAL DEGRADATION OF HEAT-RESISTING WROUGHT ALLOY STEELS

申请公布号：RO122601(B1)

申请号：RO20060000561

申请日期：2006.07.12

申请公布日期：2009.09.30

申请人：

REGIA AUTONOM E PENTRU ACTIVIT E I NUCLEARE - SUCURSALA ROMAG-TERMO

发明人：PASCU DORU ROMULUS;BOBIC ANDREEA;BALTEAN GHEORGHE

分类号：G01N1/28;G01N33/20

主分类号：G01N1/28

摘要：<p>The invention relates to a method for assessing the structural degradation of heat-resisting wrought alloy steels employed in the construction of power engineering equipments. According to the invention, the method consists in taking metallographic samples or replicas from the components of the power engineering equipments in natural size and working at temperatures under 450A C, from the main characteristic zones of welded joints, the samples being then subjected to microscopic examination as a consequence of which each grain boundary is classified as degraded or non-degraded grain boundary.</p>