High temperature abrasive wear behavior of an as-cast ductile iron

Celik, Ozgur; Ahlatçı, Hayrettin; Kayalı, E. Sabri; Çi̇menoǧlu, Hüseyin

doi:10.1016/j.wear.2004.09.004

Cited by 32 publications

(12 citation statements)

References 7 publications

(10 reference statements)

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“…For optimum abrasion resistance, hard phases and high hardness are the relevant parameters; especially important is that the hardness of the hard phases and/or the hardness of the matrix is higher than the hardness of the abrasive [15][16][17][18][19]. For heat and oxidation resistance a high alloyed matrix especially austenite behaves well [20,21].…”

Section: Introductionmentioning

confidence: 99%

Wear Mechanisms at High Temperatures. Part 3: Changes of the Wear Mechanism in the Continuous Impact Abrasion Test with Increasing Testing Temperature

et al. 2009

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The aim of the present work is to find the critical temperature for different alloys and show how the wear mechanisms change depending on different microstructure once the critical temperature is exceeded. It was found that below 800°C some materials change their wear behaviour gradually with temperature, and some materials have a critical temperature above which the behaviour changes significantly. It was found that the gradual changes seem to be correlated to the hot hardness of the material. When the changes become significant, it is often due to a change in the wear mechanism, as, e.g. when the matrix gets too soft to support the carbides, and thus breaking of the carbides becomes the dominant wear mechanism or by reaching a critical oxidation temperature above which oxidation causes the material to fail.

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Section: Introductionmentioning

confidence: 99%

Wear Mechanisms at High Temperatures. Part 3: Changes of the Wear Mechanism in the Continuous Impact Abrasion Test with Increasing Testing Temperature

et al. 2009

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“…This increase is associated with the blue brittleness, which is related to dynamic strain aging that mainly occurs in this range of temperatures. [15] Dynamic strain aging, which leads to homogeneous deformation, is mainly relevant to diffusion of interstitial atoms such as carbon or nitrogen toward moving dislocations. When speed of interstitial atoms is more than that of dislocations, dislocations are pinned by interstitial atoms during deformation.…”

Section: Resultsmentioning

confidence: 99%

Comparison of High-Temperature Properties and Thermal Shock Resistance of Austempered Ductile Irons (ADI) with Those of Pearlitic Ductile Cast Irons

Ajabshiri

Sharafi

Moeini

2011

Metall Mater Trans A

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MEHRDAD AJABSHIRI, SHAHRIAR SHARAFI, and ALIREZA MOEINI High-temperature strength and thermal shock resistance of austempered ductile iron (ADI) in high temperatures because of instability of ausferrite phase has been less interest. The aim of this study is to investigate the tensile properties of ADI and pearlitic ductile cast iron by using the short-time tensile test in high temperatures. Tensile test was conducted in temperatures of 298 K, 673 K, 873 K, and 1073 K (25°C, 400°C, 600°C, and 800°C). Thermal shock test also was conducted by using the molten lead bath at 1273 K (1000°C). In this experiment, samples of pearlitic ductile cast iron and ADI were divided in two groups; that after immersing in the molten lead bath for 25 seconds, one group was cooled in the air and other one was quenched in the water. Results showed that strength and thermal shock resistance of ADI samples are higher than those of the pearlitic ductile cast iron.

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“…For oxidation resistance, a highly alloyed matrix, which forms a stable and entire passive layer (e.g. austenites), performs well [21,22].…”

Section: Introductionmentioning

confidence: 99%

Influence of Secondary Precipitations in Fe-Based MMCs on High Temperature Wear Behaviour

2011

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Reinforcing a temperature resistant matrix with carbides (MMC, metal matrix composite) is expected to improve the abrasion resistance at high temperatures. Experiments show that carbides brought in during a plasma transferred arc (PTA) welding process get partly dissolved in the martensitic matrix and secondary carbide structures precipitate. Further analyses with nano-indentation and XRD show that these secondary precipitations strongly influence the properties of the originally homogeneous ductile martensitic matrix. Although hot hardness is increased, wear resistance is diminished due to changed nano-microstructural material properties.

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High temperature abrasive wear behavior of an as-cast ductile iron

Cited by 32 publications

References 7 publications

Wear Mechanisms at High Temperatures. Part 3: Changes of the Wear Mechanism in the Continuous Impact Abrasion Test with Increasing Testing Temperature

Wear Mechanisms at High Temperatures. Part 3: Changes of the Wear Mechanism in the Continuous Impact Abrasion Test with Increasing Testing Temperature

Comparison of High-Temperature Properties and Thermal Shock Resistance of Austempered Ductile Irons (ADI) with Those of Pearlitic Ductile Cast Irons

Influence of Secondary Precipitations in Fe-Based MMCs on High Temperature Wear Behaviour

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