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STRUCTURE CHARACTERISTICS OF MICROALLOYING AS-CAST MARTENSITIC CAST IRON

ZHANG Jinghui LI Dajun ZHAO Jiuzhou JIA Jun Harbin Institute of Technology , Harbin , ChinaLI Jianhui Heilongjiang Association for Science and Technology , Harbin , China

金属学报(英文版)

The microstructure and martensite substructure of as-cast martensitic high-Cr cast iron by injection microalloying have been studied by usig SEM and TEM.The relationship between distribution of alloying elements and phase formation of carbide,as well as various branching and distortion of carbide,have been analysed by X-ray diffractometer and EPMA.

关键词: high-Cr cast iron , null , null , null , null

Stereology in Materials Science

LIU Guoquan Department of Materials Science and Engineering , University of Science and Technology Beijing , 100083 , China.

材料科学技术(英文)

Quantitative analysis of populations having a geometric structure,which has developed into a special scientific subject called microstructology or stereology,is of great importance to the characterization and evaluation of microstructures and their evolution in various processes.This paper, besides a brief discussion on those topics such as the recent developments of computer assisted image analysis,mathematical morphology,and fractal analysis,will mainly focus on the scope,fundamen- tals,present status,and perspectives of classical stereology.Several case examples of its application to materials science will also be given.

关键词: stereology , null , null , null

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