Grain size distribution effect on mechanical behavior of nanocrystalline materials

A. V. Sergueeva; N. A. Mara; A. K. Mukherjee

doi:10.1557/proc-821-p9.8

Grain size distribution effect on mechanical behavior of nanocrystalline materials

A. V. Sergueeva, N. A. Mara, A. K. Mukherjee

Chemical Engineering and Materials Science

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

Grain size distribution effect on the mechanical behavior of NiTi and Vitroperm alloys were investigated. Yielding at significantly lower stresses than found in equiaxed counterparts, along with well defined strain hardening was observed in these nanocrystalline materials with large grains embedded in the matrix during tensile deformation at temperatures of 0.4T_m. At higher temperature the effect of grain size distribution on yield stress was not revealed while plasticity was increased in 50% in NiTi alloy with bimodal grain size structure.

Original language	English (US)
Article number	P9.8
Pages (from-to)	243-249
Number of pages	7
Journal	Materials Research Society Symposium Proceedings
Volume	821
DOIs	https://doi.org/10.1557/proc-821-p9.8
State	Published - Jan 1 2004
Event	Nanoscale Materials and Modeling - Relations Among Processing, Microstructure and Mechanical Properties - San Francisco, CA, United States Duration: Apr 13 2004 → Apr 16 2004

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abstract = "Grain size distribution effect on the mechanical behavior of NiTi and Vitroperm alloys were investigated. Yielding at significantly lower stresses than found in equiaxed counterparts, along with well defined strain hardening was observed in these nanocrystalline materials with large grains embedded in the matrix during tensile deformation at temperatures of 0.4Tm. At higher temperature the effect of grain size distribution on yield stress was not revealed while plasticity was increased in 50% in NiTi alloy with bimodal grain size structure.",

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N2 - Grain size distribution effect on the mechanical behavior of NiTi and Vitroperm alloys were investigated. Yielding at significantly lower stresses than found in equiaxed counterparts, along with well defined strain hardening was observed in these nanocrystalline materials with large grains embedded in the matrix during tensile deformation at temperatures of 0.4Tm. At higher temperature the effect of grain size distribution on yield stress was not revealed while plasticity was increased in 50% in NiTi alloy with bimodal grain size structure.

AB - Grain size distribution effect on the mechanical behavior of NiTi and Vitroperm alloys were investigated. Yielding at significantly lower stresses than found in equiaxed counterparts, along with well defined strain hardening was observed in these nanocrystalline materials with large grains embedded in the matrix during tensile deformation at temperatures of 0.4Tm. At higher temperature the effect of grain size distribution on yield stress was not revealed while plasticity was increased in 50% in NiTi alloy with bimodal grain size structure.

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Grain size distribution effect on mechanical behavior of nanocrystalline materials

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