Crystallographic Orientation Influence on the Serrated Yielding Behavior of a Single-Crystal Superalloy

Since Ni-based single-crystal superalloys are anisotropic materials, their behavior in different crystal orientations is of great interest. In this study, the yielding behavior in both tension and compression for , and oriented materials at 500 °C has been investigated. The direction showed a ser...

Full description

Bibliographic Details
Main Authors:	Johan J. Moverare, Mikael Segersäll
Format:	Article
Language:	English
Published:	MDPI AG 2013-01-01
Series:	Materials
Subjects:	single-crystals superalloy yield phenomena tension/compression asymmetry dynamic strain aging
Online Access:	http://www.mdpi.com/1996-1944/6/2/437

id	doaj-eeb7612afc974275a5f45ceb8f9589f3
record_format	Article
spelling	doaj-eeb7612afc974275a5f45ceb8f9589f32020-11-24T21:05:20ZengMDPI AGMaterials1996-19442013-01-016243744410.3390/ma6020437Crystallographic Orientation Influence on the Serrated Yielding Behavior of a Single-Crystal SuperalloyJohan J. MoverareMikael SegersällSince Ni-based single-crystal superalloys are anisotropic materials, their behavior in different crystal orientations is of great interest. In this study, the yielding behavior in both tension and compression for , and oriented materials at 500 °C has been investigated. The direction showed a serrated yielding behavior, a great tension/compression asymmetry in yield strength and visible deformation bands. However, the and directions showed a more homogeneous yielding, less tension/compression asymmetry in yield strength and no deformation bands. Microstructure investigations showed that the serrated yielding behavior of the direction can be attributed to the appearance of dynamic strain aging (DSA) and that only one slip system is active in this direction during plastic deformation.http://www.mdpi.com/1996-1944/6/2/437single-crystalssuperalloyyield phenomenatension/compression asymmetrydynamic strain aging
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Johan J. Moverare Mikael Segersäll
spellingShingle	Johan J. Moverare Mikael Segersäll Crystallographic Orientation Influence on the Serrated Yielding Behavior of a Single-Crystal Superalloy Materials single-crystals superalloy yield phenomena tension/compression asymmetry dynamic strain aging
author_facet	Johan J. Moverare Mikael Segersäll
author_sort	Johan J. Moverare
title	Crystallographic Orientation Influence on the Serrated Yielding Behavior of a Single-Crystal Superalloy
title_short	Crystallographic Orientation Influence on the Serrated Yielding Behavior of a Single-Crystal Superalloy
title_full	Crystallographic Orientation Influence on the Serrated Yielding Behavior of a Single-Crystal Superalloy
title_fullStr	Crystallographic Orientation Influence on the Serrated Yielding Behavior of a Single-Crystal Superalloy
title_full_unstemmed	Crystallographic Orientation Influence on the Serrated Yielding Behavior of a Single-Crystal Superalloy
title_sort	crystallographic orientation influence on the serrated yielding behavior of a single-crystal superalloy
publisher	MDPI AG
series	Materials
issn	1996-1944
publishDate	2013-01-01
description	Since Ni-based single-crystal superalloys are anisotropic materials, their behavior in different crystal orientations is of great interest. In this study, the yielding behavior in both tension and compression for , and oriented materials at 500 °C has been investigated. The direction showed a serrated yielding behavior, a great tension/compression asymmetry in yield strength and visible deformation bands. However, the and directions showed a more homogeneous yielding, less tension/compression asymmetry in yield strength and no deformation bands. Microstructure investigations showed that the serrated yielding behavior of the direction can be attributed to the appearance of dynamic strain aging (DSA) and that only one slip system is active in this direction during plastic deformation.
topic	single-crystals superalloy yield phenomena tension/compression asymmetry dynamic strain aging
url	http://www.mdpi.com/1996-1944/6/2/437
work_keys_str_mv	AT johanjmoverare crystallographicorientationinfluenceontheserratedyieldingbehaviorofasinglecrystalsuperalloy AT mikaelsegersall crystallographicorientationinfluenceontheserratedyieldingbehaviorofasinglecrystalsuperalloy
_version_	1716769167253700608

Crystallographic Orientation Influence on the Serrated Yielding Behavior of a Single-Crystal Superalloy

Similar Items