MICROMECHANISMS OF CLEAVAGE FRACTURE IN FULLY PEARLITIC MICROSTRUCTURES

被引：63

作者：

LEWANDOWSKI, JJ

THOMPSON, AW

机构：

[1] UNIV CAMBRIDGE,DEPT MET & MAT SCI,CAMBRIDGE CB2 3QZ,ENGLAND

[2] CARNEGIE MELLON UNIV,DEPT MET ENGN & MAT SCI,PITTSBURGH,PA 15213

来源：

ACTA METALLURGICA | 1987年 / 35卷 / 07期

关键词：

IRON AND STEEL METALLOGRAPHY - Pearlite - STATISTICAL METHODS - Regression Analysis;

D O I：

10.1016/0001-6160(87)90091-5

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The micro-mechanisms of cleavage under notched-bend conditions for fully pearlitic microstructures compared to those exhibited by simple ferrite-carbide microstructures exhibit differences from simple microstructures. In addition, fine pearlite behaves differently than coarse pearlite under notched-bend conditions. Possible reasons for these differences are discussed. In addition, pearlitic microstructures appear to exhibit temperature-dependent values for the effective surface energy for cleavage fracture over the temperature range minus 125 to 23 degree C. An attempt at rationalising this behavior is presented.

引用

页码：1453 / 1462

页数：10