Information on deformation mechanisms in nanocrystalline Pd–10% Au inferred from texture analysis
Information on deformation mechanisms in nanocrystalline Pd–10% Au inferred from texture analysis
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信息%20on%20变形%20机制%20in%20纳米晶%20Pdâ10%%20Au%20推断%20来自%20纹理%20分析
DOI:
10.1007/s10853-010-4552-y
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发表时间:
2010
影响因子:
4.5
通讯作者:
H.-J. Fecht
中科院分区:
文献类型:
--
作者:
Yu. Ivanisenko;W. Skrotzki;R. Chulist;T. Lippmann;L. Kurmanaeva;H.-J. Fecht
There is still a lack of understanding of deformation mechanisms in nanocrystalline (nc) materials. Studies on microstructures formed in nc Pd–10% Au (grain size about 15 nm) after high pressure torsion revealed signatures of various deformation processes as cooperative grain boundary sliding (GBS), shear banding, dislocation slip and twinning. In order to estimate contributions of these processes to total strain, a comparison was made between torsion textures formed in nc and coarse grained (cg) samples after identical shear strain. The textures were measured with synchrotron radiation. Intensities of characteristic components of the shear texture are two times stronger in the cg sample than in the nc one, indicating that dislocation slip is less significant in the nc sample. It is proposed that numerous planes of cooperative GBS revealed by TEM contribute to plasticity of nc alloy.
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DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
W. Skrotzki;N. Scheerbaum;C. Oertel;H. Brokmeier;S. Suwas;L. Toth
通讯作者:
L. Toth
DOI:
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发表时间:
2003
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作者:
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通讯作者:
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1974
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通讯作者:
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发表时间:
1994
期刊:
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--
作者:
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通讯作者:
A. Molinari