Shock wave study of precipitation hardening of beryllium copper

G. Hillel; L. Meshi; S. Shimon; S. Kalabukhov; N. Frage; E. B. Zaretsky

doi:10.1016/j.msea.2022.142599

Shock wave study of precipitation hardening of beryllium copper

G. Hillel, L. Meshi, S. Shimon, S. Kalabukhov, N. Frage, E. B. Zaretsky

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

6 Scopus citations

Abstract

Based on three series of planar impact tests performed on beryllium copper samples, having thickness 0.25–6 mm, individual contributions of beryllium clusters (in the as quenched supersaturated solid solution), Guinier-Preston zones (GP, formed following ageing at 300°C for 26 min) and metastable γ" precipitates (crystallizing after 400 min ageing at 300°C) to the strength of alloy were quantified along with corresponding activation volumes. These data being coupled with Transmission Electron Microscopy evaluation of geometry and statistics of GP and γ" precipitates, made determination of the resistance τ_p to dislocation motion (Peierls stress) of the lattices of these particles possible. The great difference between values measured in these two cases, namely 3.7 GPa for GP and 1.4 GPa for the γ" precipitates may be considered as an additional confirmation of the fact that in these two cases the strengthening occurs due to different phases.

Original language	English
Article number	142599
Journal	Materials Science and Engineering: A
Volume	834
DOIs	https://doi.org/10.1016/j.msea.2022.142599
State	Published - 17 Feb 2022

Keywords

Beryllium bronze
Planar impact testing
Precipitate strength
TEM

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2022.142599

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title = "Shock wave study of precipitation hardening of beryllium copper",

abstract = "Based on three series of planar impact tests performed on beryllium copper samples, having thickness 0.25–6 mm, individual contributions of beryllium clusters (in the as quenched supersaturated solid solution), Guinier-Preston zones (GP, formed following ageing at 300°C for 26 min) and metastable γ{"} precipitates (crystallizing after 400 min ageing at 300°C) to the strength of alloy were quantified along with corresponding activation volumes. These data being coupled with Transmission Electron Microscopy evaluation of geometry and statistics of GP and γ{"} precipitates, made determination of the resistance τp to dislocation motion (Peierls stress) of the lattices of these particles possible. The great difference between values measured in these two cases, namely 3.7 GPa for GP and 1.4 GPa for the γ{"} precipitates may be considered as an additional confirmation of the fact that in these two cases the strengthening occurs due to different phases.",

keywords = "Beryllium bronze, Planar impact testing, Precipitate strength, TEM",

author = "G. Hillel and L. Meshi and S. Shimon and S. Kalabukhov and N. Frage and Zaretsky, {E. B.}",

note = "Funding Information: Financial supports from the Israel Science Foundation (grant 441/18) to E.B. Zaretsky and N. Frage, and the Israeli Ministry of Defense (grant 8757643 ) to E.B. Zaretsky are gratefully acknowledged. Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

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day = "17",

doi = "10.1016/j.msea.2022.142599",

language = "English",

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T1 - Shock wave study of precipitation hardening of beryllium copper

AU - Hillel, G.

AU - Meshi, L.

AU - Shimon, S.

AU - Kalabukhov, S.

AU - Frage, N.

AU - Zaretsky, E. B.

N1 - Funding Information: Financial supports from the Israel Science Foundation (grant 441/18) to E.B. Zaretsky and N. Frage, and the Israeli Ministry of Defense (grant 8757643 ) to E.B. Zaretsky are gratefully acknowledged. Publisher Copyright: © 2022 Elsevier B.V.

PY - 2022/2/17

Y1 - 2022/2/17

N2 - Based on three series of planar impact tests performed on beryllium copper samples, having thickness 0.25–6 mm, individual contributions of beryllium clusters (in the as quenched supersaturated solid solution), Guinier-Preston zones (GP, formed following ageing at 300°C for 26 min) and metastable γ" precipitates (crystallizing after 400 min ageing at 300°C) to the strength of alloy were quantified along with corresponding activation volumes. These data being coupled with Transmission Electron Microscopy evaluation of geometry and statistics of GP and γ" precipitates, made determination of the resistance τp to dislocation motion (Peierls stress) of the lattices of these particles possible. The great difference between values measured in these two cases, namely 3.7 GPa for GP and 1.4 GPa for the γ" precipitates may be considered as an additional confirmation of the fact that in these two cases the strengthening occurs due to different phases.

AB - Based on three series of planar impact tests performed on beryllium copper samples, having thickness 0.25–6 mm, individual contributions of beryllium clusters (in the as quenched supersaturated solid solution), Guinier-Preston zones (GP, formed following ageing at 300°C for 26 min) and metastable γ" precipitates (crystallizing after 400 min ageing at 300°C) to the strength of alloy were quantified along with corresponding activation volumes. These data being coupled with Transmission Electron Microscopy evaluation of geometry and statistics of GP and γ" precipitates, made determination of the resistance τp to dislocation motion (Peierls stress) of the lattices of these particles possible. The great difference between values measured in these two cases, namely 3.7 GPa for GP and 1.4 GPa for the γ" precipitates may be considered as an additional confirmation of the fact that in these two cases the strengthening occurs due to different phases.

KW - Beryllium bronze

KW - Planar impact testing

KW - Precipitate strength

KW - TEM

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U2 - 10.1016/j.msea.2022.142599

DO - 10.1016/j.msea.2022.142599

M3 - Article

AN - SCOPUS:85122503599

SN - 0921-5093

VL - 834

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

M1 - 142599

ER -

Shock wave study of precipitation hardening of beryllium copper

Abstract

Keywords

ASJC Scopus subject areas

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