Effects of heat treatment on the erosion behavior of austempered ductile irons

Chang, L. C.; Hsui, I. C.; Chen, Lihui; Lui, Truan-Sheng

doi:10.1016/j.wear.2005.04.017

Cited by 13 publications

(5 citation statements)

References 36 publications

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“…Contemporary ADIs are used relatively frequently in the mining industry where machine components are exposed to abrasive wear. They offer a number of advantages which make them suitable as a material for machine parts [34,35], including the following: -Possibility of using casting technologies to manufacture components from ADI [36][37][38][39]; -High mechanical strength of the ADI grades [40][41][42]; -Possibility of shaping the properties of ADI by way of dedicated heat treatment [43][44][45][46] and surface treatment [47][48][49][50]; -Possibility of developing a nanocrystalline structure [51][52][53][54][55]; -Option of cast iron surface hardening in processes such as TRIP [56][57][58][59][60][61] and capacity to attain high tribological wear resistance [62][63][64][65][66][67][68].…”

Section: Introductionmentioning

confidence: 99%

Ni-Cu Alloyed Austempered Ductile Iron Resistance to Multifactorial Wear

Wieczorek

2024

Lubricants

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The paper provides a discussion on the results of studies of the effect exerted by combined degradation factors typical of four types of wear: abrasion, impact–abrasion, tribocorrosion, and impact–abrasion–corrosion, conducted for chain wheels made of Ni-Cu alloyed austempered ductile iron. The studies consisted of determining the content of retained austenite in the structure of the cast irons in question, establishing the measures of wear following wear testing, and identifying the basic surface degradation mechanisms observed in the chain wheels tested following multifactorial wear processes. The chain wheels made of ADI were found to have sustained the greatest damage under the impact–abrasion–corrosion (three-factor) wear scenario, while the wear was least advanced in the abrasion (one-factor) wear case. Another observation derived from the studies is that the combined effect of dynamic forces, corrosion, and quartz sand-based abrasives causes increased surface degradation in the cast iron grades taken into consideration compared to processes characterised by a reduced number of degradation factors (i.e., one- or two-factor wear processes). Additional hardness tests and XRD analyses revealed that a distinctive effect attributable to combined degradation factors on the surface hardness increased value and implied that bench testing was followed by phase transition.

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Section: Introductionmentioning

confidence: 99%

Ni-Cu Alloyed Austempered Ductile Iron Resistance to Multifactorial Wear

Wieczorek

2024

Lubricants

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“…Such a combination of phases makes ADI resistant to tribological wear [ 20 , 21 ] and cracking. First of all, austempered ductile iron shows a tendency towards surface hardening as a result of the phase transformation of austenite [ 22 , 23 , 24 , 25 , 26 ] into martensite under load. This effect is attributable to the fact that austenite subjected to deformation [ 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ], meeting specific conditions, is transformed into martensite, referred to as deformation martensite.…”

Section: Introductionmentioning

confidence: 99%

Abrasive Wear Resistance of Ultrafine Ausferritic Ductile Iron Intended for the Manufacture of Gears for Mining Machinery

et al. 2023

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The purpose of this study was to experimentally determine the abrasion wear properties of ausferritic ductile iron austempered at 250 °C in order to obtain cast iron of class EN-GJS-1400-1. It has been found that such a cast iron grade makes it possible to create structures for material conveyors used for short-distance transport purposes, required to perform in terms of abrasion resistance under extreme conditions. The wear tests addressed in the paper were conducted at a ring-on-ring type of test rig. The test samples were examined under the conditions of slide mating, where the main destructive process was surface microcutting via loose corundum grains. The mass loss of the examined samples was measured as a parameter characteristic of the wear. The volume loss values thus obtained were plotted as a function of initial hardness. Based on these results, it has been found that prolonged heat treatment (of more than 6 h) causes only an insignificant increase in the resistance to abrasive wear.

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“…A lower austempering temperature results in ADI with very high yield strength, high hardness and excellent wear resistance. The properties can be controlled and altered suitably by varying the heat treatment parameters [2][3][4]. The farm machinery industry has taken a keen interest in ADI for its excellent wear characteristics.…”

Section: Introductionmentioning

confidence: 99%

Mechanical characterization and optimization of heat treatment parameters of manganese alloyed austempered ductile iron

Hegde

Sharma

Sadanand

2019

JMES

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Austempered Ductile Iron (ADI) belongs to the family of cast irons whose mechanical properties are altered using austempering heat treatment process. The objective of this paper is to study the effects of heat treatment parameters on manganese alloyed ADI. Hence, austenitization temperature, austempering temperature and austempering time are taken as the control variables along with the manganese content in the material. The effects of heat treatment are studied by measuring the ultimate tensile strength and the hardness of the material. The regression equations are developed to relate the various parameters under study. The microstructures of the specimen reveal that retained austenite content increases with increase in manganese and results in decrease in hardness of the material. The statistical analyses indicate that the austempering temperature is the major factor affecting the variation in hardness and tensile strength with 74.5 % of contribution within the range of values whereas, variation in manganese content does not have significant effect on hardness within the investigated composition range in the material.

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Effects of heat treatment on the erosion behavior of austempered ductile irons

Cited by 13 publications

References 36 publications

Ni-Cu Alloyed Austempered Ductile Iron Resistance to Multifactorial Wear

Ni-Cu Alloyed Austempered Ductile Iron Resistance to Multifactorial Wear

Abrasive Wear Resistance of Ultrafine Ausferritic Ductile Iron Intended for the Manufacture of Gears for Mining Machinery

Mechanical characterization and optimization of heat treatment parameters of manganese alloyed austempered ductile iron

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