In Situ Neutron Diffraction during Tension-Compression Deformation for Nodular Graphite Cast Irons

被引：4

作者：

Naito, Daiki ^{[1
]}

Kubota, Satoru ^{[1
,2
]}

Harjo, Stefanus ^{[3
]}

Tomota, Yo ^{[4
]}

机构：

[1] Ibaraki Univ, Hitachi, Ibaraki, Japan

[2] Hitachi Construct Machinery Co Ltd, Tsuchiura, Ibaraki, Japan

[3] Japan Atom Energy Agcy, J PARC Ctr, Tokai, Ibaraki, Japan

[4] Ibaraki Univ, Grad Sch Sci & Engn, Hitachi, Ibaraki, Japan

来源：

ISIJ INTERNATIONAL | 2013年 / 53卷 / 07期

关键词：

in situ neutron diffraction; nodular graphite cast iron; lattice strain; Bauschinger effect; STAINLESS-STEEL; STRESSES; BEHAVIOR; ALLOYS; SYSTEM;

D O I：

10.2355/isijinternational.53.1292

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Tension-compression deformation behavior of three nodular graphite cast irons with different microstructures was studied using in situ neutron diffraction. The chemical compositions of cast irons used in this study are 3.71C-2.70Si-0.31Mn-0.02P-0.008S in mass% and balanced Fe. Test specimens with 5 mm diameter and 4 mm gauge length were prepared from cast blocks after heat treatment. In situ neutron diffraction profiles were measured during tension-compression test at room temperature using an engineering neutron diffractometer. The diffraction profiles corresponding to the axial and transverse direction were obtained by two 90 degrees banks. Phase stresses and intergranular stresses were determined during tension-compression deformation. It is found that the larger the magnitudes of phase and/or intergranular stresses, the larger the Bauschinger effect. It has experimentally been revealed that graphite particles hardly bear stress.

引用

页码：1292 / 1294

页数：3

共 15 条

[1] Tensile Behavior of a TRIP-aided Ultra-fine Grained Steel Studied by Neutron Diffraction [J].