Mechanical properties and microstructural stability of wrought, laser, and electron beam glazed NARloy-Z alloy at elevated temperatures

J. Singh; G. Jerman; R. Poorman; B. N. Bhat; A. K. Kuruvilla

doi:10.1023/A:1018604513547

Mechanical properties and microstructural stability of wrought, laser, and electron beam glazed NARloy-Z alloy at elevated temperatures

J. Singh, G. Jerman, R. Poorman, B. N. Bhat, A. K. Kuruvilla

Applied Research Laboratory (ARL)

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

Microstructure of wrought, laser and electron beam processed NARloy-Z (Cu-3wt% Ag-0.5wt% Zr) was investigated for thermal stability at elevated temperatures 539-760°C (1100 to 1400°F) up to 94 h. Optical and scanning electron microscopy and electron probe microanalysis were employed for studying microstructural evolution and kinetics of precipitation. Grain boundary precipitation and precipitate free zones (PFZs) were observed in the wrought alloy after exposing to temperatures above 605°C (1120°F). Fine-grained microstructure observed in the laser and electron beam (EB) processed NARloy-Z was much more stable at elevated temperatures. Tensile properties of laser and EB glazed NARloy-Z can be tailored by giving suitable heat treatments and maintaining the same strength with increased ductility. Microstructural changes correlated well with hardness measurements and mechanical properties.

Original language	English (US)
Pages (from-to)	3891-3903
Number of pages	13
Journal	Journal of Materials Science
Volume	32
Issue number	14
DOIs	https://doi.org/10.1023/A:1018604513547
State	Published - 1997

All Science Journal Classification (ASJC) codes

General Materials Science
Mechanics of Materials
Mechanical Engineering

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title = "Mechanical properties and microstructural stability of wrought, laser, and electron beam glazed NARloy-Z alloy at elevated temperatures",

abstract = "Microstructure of wrought, laser and electron beam processed NARloy-Z (Cu-3wt% Ag-0.5wt% Zr) was investigated for thermal stability at elevated temperatures 539-760°C (1100 to 1400°F) up to 94 h. Optical and scanning electron microscopy and electron probe microanalysis were employed for studying microstructural evolution and kinetics of precipitation. Grain boundary precipitation and precipitate free zones (PFZs) were observed in the wrought alloy after exposing to temperatures above 605°C (1120°F). Fine-grained microstructure observed in the laser and electron beam (EB) processed NARloy-Z was much more stable at elevated temperatures. Tensile properties of laser and EB glazed NARloy-Z can be tailored by giving suitable heat treatments and maintaining the same strength with increased ductility. Microstructural changes correlated well with hardness measurements and mechanical properties.",

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T1 - Mechanical properties and microstructural stability of wrought, laser, and electron beam glazed NARloy-Z alloy at elevated temperatures

AU - Singh, J.

AU - Jerman, G.

AU - Poorman, R.

AU - Bhat, B. N.

AU - Kuruvilla, A. K.

PY - 1997

Y1 - 1997

N2 - Microstructure of wrought, laser and electron beam processed NARloy-Z (Cu-3wt% Ag-0.5wt% Zr) was investigated for thermal stability at elevated temperatures 539-760°C (1100 to 1400°F) up to 94 h. Optical and scanning electron microscopy and electron probe microanalysis were employed for studying microstructural evolution and kinetics of precipitation. Grain boundary precipitation and precipitate free zones (PFZs) were observed in the wrought alloy after exposing to temperatures above 605°C (1120°F). Fine-grained microstructure observed in the laser and electron beam (EB) processed NARloy-Z was much more stable at elevated temperatures. Tensile properties of laser and EB glazed NARloy-Z can be tailored by giving suitable heat treatments and maintaining the same strength with increased ductility. Microstructural changes correlated well with hardness measurements and mechanical properties.

AB - Microstructure of wrought, laser and electron beam processed NARloy-Z (Cu-3wt% Ag-0.5wt% Zr) was investigated for thermal stability at elevated temperatures 539-760°C (1100 to 1400°F) up to 94 h. Optical and scanning electron microscopy and electron probe microanalysis were employed for studying microstructural evolution and kinetics of precipitation. Grain boundary precipitation and precipitate free zones (PFZs) were observed in the wrought alloy after exposing to temperatures above 605°C (1120°F). Fine-grained microstructure observed in the laser and electron beam (EB) processed NARloy-Z was much more stable at elevated temperatures. Tensile properties of laser and EB glazed NARloy-Z can be tailored by giving suitable heat treatments and maintaining the same strength with increased ductility. Microstructural changes correlated well with hardness measurements and mechanical properties.

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Mechanical properties and microstructural stability of wrought, laser, and electron beam glazed NARloy-Z alloy at elevated temperatures

Abstract

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