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Abrasion wear of austenitic manganese steels via jaw crusher test

Machado, P.C. ; Pereira, J.I. ; Sinatora, A.

Wear, 2021-07, Vol.476, p.203726, Article 203726 [Periódico revisado por pares]

Amsterdam: Elsevier B.V

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  • Título:
    Abrasion wear of austenitic manganese steels via jaw crusher test
  • Autor: Machado, P.C. ; Pereira, J.I. ; Sinatora, A.
  • Assuntos: Abrasion ; Abrasion wear ; Austenitic manganese steel ; Austenitic stainless steels ; Deformation twins ; Deformation wear ; Ion beams ; Jaw crusher test ; Jaw crushers ; Manganese steels ; Microhardness ; Surface roughness ; Ultrafine grains ; Ultrafines ; Wear resistance
  • É parte de: Wear, 2021-07, Vol.476, p.203726, Article 203726
  • Descrição: The abrasion wear of the austenitic manganese steels with 12% Mn and 20% Mn was evaluated via jaw crusher tests. The abrasive mass (i.e. gravel) used per test was 100 kg and 14.3 mm of mean sized particles. The wear characterization was carried out with the evaluation of mass loss, hardness profile, worn surface roughness, and wear micromechanisms. Additionally, the subsurface's microstructure was analysed by a Focused Ion Beam (FIB). The stationary and movable jaws presented differences in mass loss and wear micromechanisms. The stationary jaw has higher wear than the movable one. These results are related to the micromechanism of microcutting and microploughing to the stationary jaw and the micro-indentation to the movable jaw. For the relative wear of the jaws' materials, there was a significant difference for the values of stationary jaw conditions, resulting in higher wear resistance for the high manganese alloy applied in this condition. FIB results show that the wear promotes the formation of ultrafine grains and deformation twins in the subsurface layer. •In the stationary jaw, the steel with 20% Mn shows a tendency of high wear resistance than the steel with 12% Mn.•The stationary jaw shows a higher relative wear than the movable jaw for both steels.•The embedded abrasive particles on the surface protect the surface and minimize the formation of long scratches.•The microstructure of the subsurface of the jaws was characterized by ultrafine grains layer and deformation twins.
  • Editor: Amsterdam: Elsevier B.V
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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