an investigation of the mechanical damping of ductile iron

The Effect of Copper Addition on the Mechanical and Wear ...

An alloy of cast iron and copper (Fe-Cu) has been developed using a stir cast process. The compo-sitional, microstructural characterization and wear property of the developed Fe-Cu alloy were carried out with the aids of X-ray diffractometer, scanning electron microscope (SEM) and pin on Disc machine. The mechanical properties such as hardness and impact energy were investigated.

Investigation on Optimization of Machining Parameters on …

Investigation on Optimization of Machining ... then ductile iron with the cast iron is an outdated and widely held ... machinability and damping properties. Unfortunately these properties of SG iron are not widely well known because of the misconception about its brittle behavior.

TECHNICAL PAPER Near-Net-Shape Manufacturing of ...

Austempered Ductile Iron is a new class of ... and good vibration damping, as well as a high level of ductility, ... z Production of ADI component needs less energy than forged steel components z Auastempering can impart wide range of mechanical properties in the SG iron to produce ADI which can replace the forged steel and SG iron parts even ...

Austempered Ductile Iron :: Total Materia Article

Austempered ductile iron (ADI) is finding an ever increasing worldwide market in the automotive and other sectors. It offers a range of mechanical properties superior to those of other cast irons, and shows excellent economic competitiveness with steels and aluminum alloys. ADI is a heat treated form of as-cast ductile iron.

Effect of austemperig on ductile iron - SlideShare

•Therefore, an attempt has been made in the present work to study the effect of austempering temperature and time on the mechanical properties of austempered ductile iron such as tensile strength, % elongation, hardness and impact toughness by carrying out austempering treatment of ductile iron at 350°C, 300°C, and 250°C for 0.5hr, 1hr, 1 ...

An Investigation on Formability and Crystallographic ...

Rolling ductile Mg alloys (AZ31 plus Sn and Pb), develops {0001} fiber texture similar in nature to the one found in unalloyed Mg [2]. It is concluded that the same slip systems and twinning mechanism operate, and the source of the observed difference in mechanical behavior

(PDF) An Investigation on the Suitability of Surface ...

Dublin Institute of Technology ARROW@DIT Conference Papers School of Mechanical and Transport Engineering An Investigation on the Suitability of Surface Engineered Austempered Ductile Iron as a Gear Material M. Grech University of Malta David Kennedy Dublin Institute of Technology, [email protected] Zdravko Schauperl University of Zagreb Follow this and additional works at: htp ...

Prediction of fatigue life using modal analysis for grey ...

Additionally, for both ductile and grey cast iron, the fatigue life shows an increasing trend with the increase of damping ratio as shown in Fig. 5. Nodular specimens have higher damping ratio and hence, higher fatigue life than grey cast iron specimens. The increase of damping ratio with the fatigue life is noticed for the two families and ...

Gray Iron – Iron Casting Research Institute, Inc.

[26] Zlatin, Norman, "The Machinability of an Unalloyed and an Alloyed Gray Iron," Gray and Ductile Iron News, March 1965. pp. 5-14. [27] Lamb, A. D., "Material and Technique Factors in the Machining of Iron Castings, Gray and Ductile Iron News, Part I, …

ACTA METALLURGICA SLOVACA

acta metallurgica slovaca 2021, vol. 27, no. 2, 87-93 doi: 10.36547/ams.27.2.791 87 research paper mechanical damping characteristics of ductile and grey

MECHANICAL DAMPING CHARACTERISTICS OF DUCTILE AND …

Damping behaviour of micro alloyed ductile and gray cast irons were investigated in this study. This was aimed at establishing the effect of composition and microstructural parameters on the damping properties of the micro alloyed cast irons, which have shown promise for utilization in automobile and machine building where enhanced damping performance are vital.

Metallographic investigation of Nd: YAG laser processed ...

The ductile iron and ADI used throughout this work was melted in 100 kg MF induction furnace to reach the nominal chemical composition of 3.6%C, 2%Si, 0.3%Mn, 0.01%S. 10 th International Symposium on the Science and Processing of Cast Iron – SPCI10

Technological heredity when roller burnishing of ductile ...

_____ good mechanical properties, high vibration damping ∗Author ... investigation. It is widely used in mechanical ... free machining properties without the addition of lead, bismuth, sulfur or phosphorus. The 65-45-12 ductile iron grade has a mostly ferritic matrix …

ACTA METALLURGICA SLOVACA

with their nodular graphite. The micro-alloyed ductile iron generally had higher storage (78906 – 120868 MPa) and loss modulus (5375 – 6715 MPa) than that of the grey cast iron and ductile iron composition without alloying elements. Although the damping

Mechanical Properties of Tempered Ti-Nb Alloyed Ductile Iron

The applications of ductile iron in numerous engineering applications require continuous effort in properties enhancement due to the necessity of product sustainability and performance. The studies highlighted the effect of 0.5 wt% titanium and niobium addition the mechanical properties of tempered ductile iron. The samples were prepared through conventional CO2 sand casting process.

The Influence of Alloying Elements on Damping Capacity of ...

S.H. Carpenter, T.E. Stuch, R. Salzbrenner, An investigation of the mechanical damping of ductile iron. Metall. Mater. Trans. ... Effect of rare earth element on microstructure formation and mechanical properties of thin wall ductile iron castings. Mater. Sci. Eng. A 383, 323–333 (2004)

Mechanical Properties of Ductile Irons[1] | Cast Iron ...

The grades of ductile iron designated by their tensile properties in the specification ASTM A536 are presented in a table. The article various reviews factors, such as microstructure, composition, and section effect, affecting the mechanical properties of ductile iron.

Investigation of Mechanical Properties of Carbidic Ductile ...

Investigation of Mechanical Properties of Carbidic Ductile Cast Iron. R.Rajvel[1], S.Mahendran[2], R.Pradeep Kumar[3] [1,2,3] Assistant Professor, Department of Mechanical Engineering, SNS College of Engineering, Coimbatore – 641 107. Abstract: The objective of the present work is to increase the wear resistance for long life of applications.

INVESTIGATION OF DUCTILE IRON 'SANDWICH' …

General about ductile iron Type of treatment to convert cast iron to ductile iron Sandwich treatment 3 4 5 1.6 Objective 6 1.7 1.8 Scope 1.7.1 Variable of pattern size range from 0.5kg-1.5kg 1.7.2 Variable of percentage ferrosilicon magnesium range from 0.2%-0.6% 1.7.3 Fixed type of pocket, which is normal pocket. Problem statement 7 7

Ductile Cast Iron: Process, Composition, Differences and ...

Ductile iron casting refers to a process in which magnesium / cerium (as an alloy of magnesium / cerium) is added to cast iron. It reacts with the sulfur and oxygen in the molten iron and changes the way the graphite is formed. Ductile cast iron (also called as spheroidal graphite cast iron or nodular cast iron) has been widely used as a main industrial material in place of high-grade cast iron.

Investigation of mechanical properties and wear rate on ...

The ductile iron is initially heat-treated to create matrix microstructure and improved mechanical properties which are treated with the austempering process so-called Austempered ductile iron (ADI). The material used in this investigation was …

Investigation of mechanical properties of carbidic ductile ...

Investigation of Mechanical Properties of Carbidic Ductile Cast Iron R.Rajvel1, S.Mahendran2, R.Pradeep Kumar3 1,2,3 ... good vibration damping properties with good wear resistance and mechanical ...

An Investigation on the Suitability of Surface Engineered ...

An Investigation on the Suitability of Surface Engineered Austempered Ductile Iron as a Gear Material ... relatively poor damping characteristics and a comparatively high coefficient of friction, ... Austempered ductile iron gears may have mechanical properties that are comparable to those of

An investigation of the mechanical damping of ductile iron ...

The magnitude of the magnetomechanical damping was much larger than that due to dislocation motion. An additional goal of the investigation was to determine if any correlation existed between the measured mechanical damping and the fracture toughness of the ductile iron materials; no correlation was found.

Thin Wall Ductile Iron Castings: Technological Aspects

ductile iron, providing similar values of strength (Fig. 1). The exception is ADI, which considerably exceeds the other alloys. It follows that the ductile iron can be as light as aluminum alloy. In some cases (eg. internal combustion engine, housing of catalyst) important is influence the temperature on mechanical properties.

Numerical modal analysis for vibration-damping properties ...

vibration-damping properties of materials, ductile cast iron - graphitic cast iron with the spherical shape of graphite (ductile cast iron). Investigation is focused on its mechanical properties, chemical composition and microstructure, which are necessary as input parameters for computational modeling and numerical analysis. The vibration

Diamond technology Abrasive machining of ductile iron with …

damping characteristics, good wear resistance and fatigue strength including good machinability [2]. Austempered ductile iron (ADI) is thought to offer all the benefits of ductile iron as well as superior mechanical properties common to many steel forgings and castings with lower ... of this investigation. Discussion – from a superabrasive

EFFECTS OF FRICTION STIR PROCESSING ON …

damping capacity of ductile iron is twice that of steel. Gray cast iron has twice the damping capacity of ductile iron [10]. The damping capacity generally decreases with increased matrix hardness and increases with carbon content [11, 12]. The only exception …