Neutronographic Residual Stress Analysis for Materials With Depth Gradients of the Strain Free Lattice Parameter d0 for the Example of a Case-Hardened Steel 20MnCr5

被引：0

作者：

Pulvermacher, S. ^{[1
]}

Saroun, J. ^{[2
]}

Cabeza, S. ^{[3
]}

Pirling, T. ^{[3
]}

Kornmeier, J. Rebelo ^{[4
]}

Epp, J. ^{[5
,6
]}

Hofmann, M. ^{[4
]}

Gibmeier, J. ^{[1
]}

机构：

[1] Karlsruhe Inst Technol, Inst Appl Mat, Kaiserstr 12, D-76131 Karlsruhe, Germany

[2] Nucl Phys Inst CAS, Rez 25068, Czech Republic

[3] Inst Laue Langevin, 71 Ave Martyrs, 9 Grenoble, France

[4] Tech Univ Munich, Heinz Maier Leibnitz Zent MLZ, D-85748 Garching, Germany

[5] Leibniz Inst Werkstofforientierte Technol, IWT, Badgasteiner Str 3, D-28359 Bremen, Germany

[6] Univ Bremen, MAPEX Ctr Mat & Proc, Am Biolog Garten 2, D-28359 Bremen, Germany

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2023年 / 54卷 / 09期

关键词：

X-RAY-DIFFRACTION; NEUTRON; MICROSTRUCTURE; PRESSURE; LIFETIME; BEHAVIOR; DAMAGE; GEAR;

D O I：

10.1007/s11661-023-07076-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, ring-shaped samples made from steel 20MnCr5 were low-pressure carburized (LPC) and subsequently hardened by gas quenching (case-hardened). This results in a near-surface gradient in chemical composition, microstructure-and hardness distribution, as well as a three-dimensional residual stress (RS) distribution, which was investigated by neutron diffraction. Near-surface RSs in the ferrite-/martensite-and austenite phase are additionally determined by X-ray diffraction. It is shown that the chemical gradient has an influence on the chosen d(0) strategy and how such a reference sample should be extracted. If near-surface RS values are to be determined by neutron diffraction, the pseudo-strain effect must be taken into account. For this purpose, a suitable approach using the "open source"software SIMRES and STRESSFIT is also presented. By combining neutron and X-ray diffraction data, a complete RS distribution over the whole sample can be obtained.

引用

页码：3448 / 3460

页数：13

共 1 条

[1] Neutronographic Residual Stress Analysis for Materials With Depth Gradients of the Strain Free Lattice Parameter d0\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${{\varvec{d}}}_{0}$$\end{document} for the Example of a Case-Hardened Steel 20MnCr5
S. Pulvermacher
J. Šaroun
S. Cabeza
T. Pirling
J. Rebelo Kornmeier
J. Epp
M. Hofmann
J. Gibmeier
Metallurgical and Materials Transactions A, 2023, 54 (9) : 3448 - 3460

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