4.6 Article

Achieving high strength-ductility synergy in nickel aluminum bronze alloy via a quenching-aging-tempering heat treatment

Journal

MATERIALS LETTERS
Volume 333, Issue -, Pages -

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ELSEVIER
DOI: 10.1016/j.matlet.2022.133661

Keywords

Deformation and fracture; Metals and alloys; Microstructure; Phase transformation

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A quenching-aging-tempering heat treatment technique is used to produce a nickel aluminum bronze alloy with exceptional mechanical properties, including a yield strength above 800 MPa, an ultimate strength over 1000 MPa, and an elongation over 8.0%. These excellent properties are primarily attributed to the presence of ultrafine tempered lamellar structures and high-density nano k precipitates.
A quenching-aging-tempering heat treatment is proposed to develop a high strength-ductility nickel aluminum bronze alloy with a yield strength over 800 MPa, an ultimate strength over 1000 MPa, and an elongation over 8.0 %. The excellent comprehensive mechanical properties are primarily attributed to the ultrafine tempered lamellar structures and high-density nano k precipitates.

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