The effects of two-phase partial annealing on the impact energy absorption of AR400 steel

• Autorzy: Meyer Witske , Jamiru Tamba , Beneke Lodewyk Willem , Adegbola Taoreed Adesola

Identyfikatory

DOI

10.12913/22998624/201323

• Języki publikacji: EN

Abstrakty

EN

This study aimed to evaluate whether the impact resistance of AR400 abrasion-resistant steel, known for its superior tribological properties and wear capabilities, could be enhanced through a two-phased partial annealing heat treatment process while maintaining material hardness and wear resistance. The hypothesis posited that successful heat treatment would improve the wear plate's combined impact and wear resistance, potentially enabling the use of thinner steel materials with comparable wear properties in traditional earth-moving machine wear packages. The study began by establishing the mechanical properties of control specimens through metallurgical analyses for baseline comparison. The Phase 1 heat treatment process involved heating specimens of three different material thicknesses to 1000°C for 20 minutes, followed by oil quenching, which reduced the martensitic content and fostered a predominantly bainitic phase dispersion. Phase 2 involved heating the specimens to 750°C for 20 minutes and rapidly quenching them in cool water. SEM analysis confirmed the bainitic dispersion and revealed that Phase 2 partial annealing only marginally influenced the phase dispersions established in Phase 1. The heat treatment significantly enhanced the materials' impact resistance and toughness but reduced hardness and brittleness. Material elongation nearly doubled across all thicknesses, indicating improved ductility, while Impact testing at -40°C demonstrated substantial increases in impact energy absorption. These findings suggest that while the two-phased partial annealing process holds promise, further refinement is needed to optimize the balance between impact resistance, ductility, tensile strength, and hardness.

Słowa kluczowe

EN

abrasion resistant steels; partial annealing; impact energy absorption; earth moving machines; wear packages

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2025
• Tom: Vol. 19, no. 5
• Strony: 46--57
• Opis fizyczny: Bibliogr. 24 poz., fig., tab.

Twórcy

autor

Meyer Witske

• Department of Mechanical and Mechatronics Engineering, Tshwane University of Technology, South Africa

• https://orcid.org/0000-0001-5004-4640

autor

Jamiru Tamba

• Department of Mechanical and Mechatronics Engineering, Tshwane University of Technology, South Africa

• https://orcid.org/0000-0002-9492-1921

autor

Beneke Lodewyk Willem

• Department of Mechanical and Mechatronics Engineering, Tshwane University of Technology, South Africa

• https://orcid.org/0000-0002-7616-9369

autor

Adegbola Taoreed Adesola

• Department of Mechanical and Mechatronics Engineering, Tshwane University of Technology, South Africa

• https://orcid.org/0000-0002-6881-7215

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).