High-Strength Near-Beta Titanium Alloy Fabricated by Direct Hot Pressing of the Machining Swarf

Yingchao Guo; Paul Genelot; Ajit Pal Singh; Leandro Bolzoni; Yingdong Qu; Hongchao Kou; Junpin Lin; Fei Yang

doi:10.1007/s11665-022-06846-w

High-Strength Near-Beta Titanium Alloy Fabricated by Direct Hot Pressing of the Machining Swarf

Yingchao Guo, Paul Genelot, Ajit Pal Singh, Leandro Bolzoni, Yingdong Qu, Hongchao Kou, Junpin Lin, Fei Yang

School of Materials Sience and Engineering

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

8 Scopus citations

Abstract

Significant amount of Ti-5553 alloy (a near-beta titanium alloy) swarf is produced during the daily operation of manufacturing high strength titanium alloy components used in industry. However, the direct use of the produced swarf is seldom investigated and reported. In this paper, hot pressing was used to recycle Ti-5553 machining swarf to turn the waste into useful material. The hot-pressed Ti-5553 alloy has an ultimate tensile strength (UTS) of 675 ± 12 MPa, strain to fracture of 0.98 ± 0.04%, and bending strength of 1181±28 MPa. After double-aging at 600 ºC for 4 h followed by 700 ºC for 0.5 h, both strength and ductility of hot-pressed Ti-5553 alloy have a significantly improved, with a yield strength (YS) of 1390 ± 20 MPa, UTS of 1425 ± 12 MPa, a strain to fracture of 2.47 ± 0.07%, and a bending strength 2565±35 MPa. These results demonstrate the hot pressing is a viable processing route to recycle Ti-5553 swarf to cost-effectively produce a qualified solid material for post-processing and engineering applications.

Original language	English
Pages (from-to)	8619-8629
Number of pages	11
Journal	Journal of Materials Engineering and Performance
Volume	31
Issue number	10
DOIs	https://doi.org/10.1007/s11665-022-06846-w
State	Published - Oct 2022

Keywords

heat treatment
hot pressing
machining swarf
solid-state recycling
Ti-5553 alloy

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10.1007/s11665-022-06846-w

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title = "High-Strength Near-Beta Titanium Alloy Fabricated by Direct Hot Pressing of the Machining Swarf",

abstract = "Significant amount of Ti-5553 alloy (a near-beta titanium alloy) swarf is produced during the daily operation of manufacturing high strength titanium alloy components used in industry. However, the direct use of the produced swarf is seldom investigated and reported. In this paper, hot pressing was used to recycle Ti-5553 machining swarf to turn the waste into useful material. The hot-pressed Ti-5553 alloy has an ultimate tensile strength (UTS) of 675 ± 12 MPa, strain to fracture of 0.98 ± 0.04%, and bending strength of 1181±28 MPa. After double-aging at 600 ºC for 4 h followed by 700 ºC for 0.5 h, both strength and ductility of hot-pressed Ti-5553 alloy have a significantly improved, with a yield strength (YS) of 1390 ± 20 MPa, UTS of 1425 ± 12 MPa, a strain to fracture of 2.47 ± 0.07%, and a bending strength 2565±35 MPa. These results demonstrate the hot pressing is a viable processing route to recycle Ti-5553 swarf to cost-effectively produce a qualified solid material for post-processing and engineering applications.",

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author = "Yingchao Guo and Paul Genelot and Singh, {Ajit Pal} and Leandro Bolzoni and Yingdong Qu and Hongchao Kou and Junpin Lin and Fei Yang",

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AU - Guo, Yingchao

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AU - Singh, Ajit Pal

AU - Bolzoni, Leandro

AU - Qu, Yingdong

AU - Kou, Hongchao

AU - Lin, Junpin

AU - Yang, Fei

PY - 2022/10

Y1 - 2022/10

N2 - Significant amount of Ti-5553 alloy (a near-beta titanium alloy) swarf is produced during the daily operation of manufacturing high strength titanium alloy components used in industry. However, the direct use of the produced swarf is seldom investigated and reported. In this paper, hot pressing was used to recycle Ti-5553 machining swarf to turn the waste into useful material. The hot-pressed Ti-5553 alloy has an ultimate tensile strength (UTS) of 675 ± 12 MPa, strain to fracture of 0.98 ± 0.04%, and bending strength of 1181±28 MPa. After double-aging at 600 ºC for 4 h followed by 700 ºC for 0.5 h, both strength and ductility of hot-pressed Ti-5553 alloy have a significantly improved, with a yield strength (YS) of 1390 ± 20 MPa, UTS of 1425 ± 12 MPa, a strain to fracture of 2.47 ± 0.07%, and a bending strength 2565±35 MPa. These results demonstrate the hot pressing is a viable processing route to recycle Ti-5553 swarf to cost-effectively produce a qualified solid material for post-processing and engineering applications.

AB - Significant amount of Ti-5553 alloy (a near-beta titanium alloy) swarf is produced during the daily operation of manufacturing high strength titanium alloy components used in industry. However, the direct use of the produced swarf is seldom investigated and reported. In this paper, hot pressing was used to recycle Ti-5553 machining swarf to turn the waste into useful material. The hot-pressed Ti-5553 alloy has an ultimate tensile strength (UTS) of 675 ± 12 MPa, strain to fracture of 0.98 ± 0.04%, and bending strength of 1181±28 MPa. After double-aging at 600 ºC for 4 h followed by 700 ºC for 0.5 h, both strength and ductility of hot-pressed Ti-5553 alloy have a significantly improved, with a yield strength (YS) of 1390 ± 20 MPa, UTS of 1425 ± 12 MPa, a strain to fracture of 2.47 ± 0.07%, and a bending strength 2565±35 MPa. These results demonstrate the hot pressing is a viable processing route to recycle Ti-5553 swarf to cost-effectively produce a qualified solid material for post-processing and engineering applications.

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KW - machining swarf

KW - solid-state recycling

KW - Ti-5553 alloy

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High-Strength Near-Beta Titanium Alloy Fabricated by Direct Hot Pressing of the Machining Swarf

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