Effect of Chemical Composition and Heat Treatments on the Microstructure and Wear Behavior of Manganese Steel

Ayadi, Souad; Hadji, Ali

doi:10.1007/s40962-020-00479-2

Cited by 26 publications

(12 citation statements)

References 15 publications

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“…An accelerated wear trend was observed for both groups of sensors, with the LDWN group being more evident. This may be due to the concave liner material characteristics, with which lower hardness castings are often produced in the internal section of the casting during the heat treatment process [43][44][45].…”

Section: Digital Wear Sensor Measurementsmentioning

confidence: 99%

Modelling of Gyratory Crusher Liner Wear Using a Digital Wireless Sensor

Ou,

Chen

2023

Sensors

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A gyratory crusher is a key mineral processing asset in a comminution circuit. Monitoring and predicting the crusher liner wear is essential to ensure the throughput and product quality are maintained during production. This study developed a digital sensor and a discrete element modelling (DEM)-coupled methodology to monitor and reconstruct the gyratory crusher concave liner wear pattern. The developed digital sensor was able to track and report the live thickness of the specific installation point on a concave liner during operation. A wear reconstruction model was then developed based on the wear intensity obtained using the DEM and digital sensor results. The wear reconstruction model predictive results were subsequently compared with site measurements after 95 days of operation. The results indicated that the wear reconstruction model showed good agreement with measured results in terms of wear zone distribution as well as quantitative wear rate prediction. The outcome of this study can be potentially utilised in the mineral processing industry for plant monitoring and automation.

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Section: Digital Wear Sensor Measurementsmentioning

confidence: 99%

Modelling of Gyratory Crusher Liner Wear Using a Digital Wireless Sensor

Ou,

Chen

2023

Sensors

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“…To improve the mechanical properties, many efforts have been carried out [1][2][3][4][5] , and the results showed that 1.5C-18Mn-Cr steel is more abrasive wear-resisting than 1.2C-13Mn-Cr steel [6] . Some research on getting the excellent wear-resisting and better-strengthened effect of precipitation as well as reducing the trend of carbide precipitation has also been carried out by adjusting the C and Mn content of high manganese steel [7][8][9] .…”

Section: Introductionmentioning

confidence: 99%

Mechanical Property of New Cast High Manganese Steel and Its Application

Zhou,

Sun

2023

J. Phys.: Conf. Ser.

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Based on the traditional Mn13, the new cast high manganese steel was prepared by adding different Cr, Mo, B, and Re elements in the composition. Its microstructure, mechanical properties, and wear quantity of surface were investigated. Results show that after water toughening, the pearlite dissolved and a few linear carbides were kept at the boundary of grains in the microstructure. All of the hardness was more than 220 HB, impact toughness reached or exceeded 140 J/cm2, and ultimate tensile strength was 753 MPa. The lowest abrasive wear quantity was 0.02 g. The newly cast high manganese steel was applied to produce breaking teeth casting of the crusher. Velocity and temperature fields were simulated to predict some defects during the mold filling and solidification process with finite element software for 4 foundry processes. The optimal technological parameter was adapted to make breaking teeth components.

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“…Hadfield steels is manufactured by casting process, contain carbide (Fe, Mn)3C in the grain boundary due to slow solidification process [6,7,8,9,10,11]. Figure1 shows the exemplary carbide precipitated in grain boundary.…”

Section: Introductionmentioning

confidence: 99%

The influence of heat rate and austenitization temperature on microstructure and hardness of Hadfield steel

Wahyudi

Pratiwi

Supriyanto³

et al. 2023

Sinergi

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The As-Cast condition of Hadfield alloy usually contains (Fe, Mn)3C carbides around the austenitic grains, which promote brittleness, making the steel impractical in industry. Heat treatment is normally applied to reduce carbide content, lower carbides, and improve toughness. However, a complete austenitic structure is not attainable during solution treatment. The dissolution temperature and dissolution time are critical to obtaining complete carbide content. Furthermore, heating must be done slowly, and the quenching speed must be fast enough. This study examines the effect of heat rate and austenitization temperatures in the solution treatment on the microstructure and hardness of Hadfield steel. The heat rate of 3, 6 and 10 oC/min is selected to determine whether there is a change in the microstructure of Hadfield steel. The four austenitization temperatures of 1000, 1100, 1150 and 1200 oC are used to ascertain carbide dissolution into the austenite matrix. Grain boundary, hardness, and phase transformation will confirm the microstructural change and hardness properties. The optical microscope shows carbide content is reduced as the austenitization temperature increases. The consequence of carbide dissolution affects the hardness. Its hardness decreases as temperature increase due to the loss of carbide. The as-Cast specimen has the highest hardness of 227.8 HV30, and the lowest hardness is 176.7 HV30 belongs to a specimen that is heated up to 1200 °C and quenched into water. Grain size is measured by the line intercept method, which shows its increase as temperatures increase. The result of grain measurement is as follows: As-Cast 224.6 mm, T 1000 °C 323.3 mm, T1100 °C 409.2 mm, T1150 °C 1014.4 mm, T1200 °C 881.6 mm. SEM-EDS confirms that the main phase is austenite, and a small amount of carbide is detected in the austenite matrix.

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Effect of Chemical Composition and Heat Treatments on the Microstructure and Wear Behavior of Manganese Steel

Cited by 26 publications

References 15 publications

Modelling of Gyratory Crusher Liner Wear Using a Digital Wireless Sensor

Modelling of Gyratory Crusher Liner Wear Using a Digital Wireless Sensor

Mechanical Property of New Cast High Manganese Steel and Its Application

The influence of heat rate and austenitization temperature on microstructure and hardness of Hadfield steel

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