Effect of graphite shape in vacuum-free diffusion bonding of nodular cast iron with gray cast iron

Özdemir, Niyazi; Aksoy, M.; Orhan, Nuri

doi:10.1016/s0924-0136(03)00154-7

Cited by 50 publications

(32 citation statements)

References 6 publications

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“…Bartocha et al [6], worked on the qualitative and qualitative analysis of graphite in grey cast iron and the effect of graphite morphologies and casting condition on the mechanical properties of grey iron, allowing them to correlate improved properties in the alloy with microstructural changes as a function of solidification conditions. Likewise, Özdemir et al [7], revealed the effect of graphite shape on the diffusion bonding of grey cast iron and this they found has many parallels to solidification processing. Yang et al [8], in a study of gas atomized grey cast iron powders, related the microstructural evolution of the powders to the particle size (and hence cooling rate).…”

Section: Introductionmentioning

confidence: 90%

Effect of rapid solidification on the microstructure and microhardness of BS1452 grade 250 hypoeutectic grey cast iron

Oloyede

Mullis

2017

Journal of Alloys and Compounds

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ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. respectively). Microstructural analysis reveals that the as-received bulk sample displayed a graphitic structure while the rapidly cooled samples display decreasing amounts of -Fe as the cooling rate increases. At moderate cooling rates is replaced with and Fe 3 C, while at higher cooling rates with . Microhardness increase with cooling rate but cannot be mapped uniquely onto cooling rate, suggesting undercooling also influences the mechanical properties. Effect of rapid solidification on

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Section: Introductionmentioning

confidence: 90%

Effect of rapid solidification on the microstructure and microhardness of BS1452 grade 250 hypoeutectic grey cast iron

Oloyede

Mullis

2017

Journal of Alloys and Compounds

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“…However, cast iron is known as a hardly welding material. The poor weldability of cast iron can be attributed to two factors: the formation of martensite in the heat affected zone (HAZ), and the development of hard, brittle iron carbide in the zone of partial fusion [6].…”

Section: Introductionmentioning

confidence: 99%

Study on Bond Strength of Bonded Gray Cast Iron

Abdullah¹,

Rawhdan²

2017

JNUS

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In the present study, two gray cast iron specimens were diffusion bonded at the temperatures of 700, 750, 800, 850, and 900 °C, the furnace used atmosphericexperiment under a pressing load of 1 and 2 ton for 15, 30 and 60min. After diffusion bonding, shear test measurements of interface region were made. As a result, from the microstructural observations, a good bonding along the interface of the bonded couples were detected since the interface is free from voids and microcracks. To evaluate the bond strength, the shear test investigation was used. The actual bonded area was calculated by using a computer package called (Auto Cad 2006). The results shows that the bond strength increases with increasing the temperature and holding time. Fracturography of the interface was carried out by using optical microscope before and after the experiments. The microstructure results shows the formation of carbide. Its precipitation increases with increasing the bonding temperature and time.

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“…Generally, Arc welding processes and oxyacetylene welding are the most two common welding processes which are applied to cast iron welding [6][7][8]. Recently, the application of diffusion bonding, friction welding and electron beam welding are studied by some researchers [9][10][11][12]. In this study, however, laser welding was applied to join cast iron and carburized steel due to the properties of laser welding [13,14].…”

Section: Introductionmentioning

confidence: 99%

Laser welding of cast iron and carburized steel for differential gear

Jung

Kim³

et al. 2011

J Mech Sci Technol

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This study concerned laser welding replacing the traditional bolted connection of the ring gear and differential case in the power train of the automobile. Laser welding is necessary to reduce weight and manufacturing cost, since the bolted connection method requires additional parts and space. In the differential gear, however, it is difficult to control the welding processes because cast iron and carburized steel contain high carbon content. To solve these welding problems, laser welding using Ni-base filler metal was used in this work. The results of welding with Ni-base filler metal satisfied the torsional stiffness and durability, but compared to the bolted connection method, noise and hardness problems occurred. Therefore, to solve these problems, penetration depth was decrease from 5mm to 4mm and the carburized layer of the ring gear was cut with 1mm. As well, numerical method was used to evaluate welding deformation, torsional stiffness and fatigue.

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Effect of graphite shape in vacuum-free diffusion bonding of nodular cast iron with gray cast iron

Cited by 50 publications

References 6 publications

Effect of rapid solidification on the microstructure and microhardness of BS1452 grade 250 hypoeutectic grey cast iron

Effect of rapid solidification on the microstructure and microhardness of BS1452 grade 250 hypoeutectic grey cast iron

Study on Bond Strength of Bonded Gray Cast Iron

Laser welding of cast iron and carburized steel for differential gear

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