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Transacti.ns of Nonferrous Metals Soci.ty of Chi.a 2019年第6期29卷 1263-1274页

作者： i. ESTHER i. dinaharan N. MURUGAN Department of Mechani.al Engi.eeri.g Anna University Chennai 600025 Tamil Nadu India Department of Roboti.s and Automati.n Engi.eeri.g PSG College of Technology Coimbatore 641004 Tamilnadu India Department of Mechani.al Engi.eeri.g Sci.nce University of Johannesburg Auckland Park Kingsway Campus Johannesburg 2006 South Africa

Thi. work i. focused on developi.g AA2124/4 wt.%B4 C nano-composi.e coati.gs on Ti.6 A1-4 V usi.g fri.ti.n surfaci.g to i.prove the wear resi.tance. The composi.e was produced usi.g conventi.nal sti. casti.g method and coati.gs were lai. usi.g an i.di.enously-developed fri.ti.n surfaci.g machi.e. The rotati.nal speed of the mechtrode was vari.d. The mi.rostructure of the composi.e coati.g was observed usi.g conventi.nal and advanced mi.roscopi. techni.ues. The sli.i.g wear behavi.r was evaluated usi.g a pi.-on-di.c apparatus. The coati.g geometry(thi.kness and wi.th) i.creased wi.h i.creased rotati.nal speed. The i.terface was strai.ht wi.hout thi.k i.termetalli. layer. Homogenous di.tri.uti.n of nano B4C parti.les and extremely fi.e grai.s was observed i. the composi.e coati.g. The i.terfaci.l bondi.g between the alumi.um matri. and B4C parti.les was excellent. The composi.e coati.g i.proved the wear resi.tance of the ti.ani.m alloy substrate due to the reducti.n i. effecti.e contact area,lower coeffi.i.nt of fri.ti.n and excellent i.terfaci.l bondi.g.

关键词： alumi.um matri. composi.e ti.ani.m fri.ti.n surfaci.g coati.g wear

i.fluence of Fri.ti.n Sti. Weldi.g Parameters on Sli.i.g Wear Behavi.r of AA6061/0-10 wt.% ZrB<sub>2</sub>i.-si.u Composi.e Butt Joi.ts

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Journal of Mi.erals and Materi.ls Characteri.ati.n and Engi.eeri.g 2011年第14期10卷 1359-1377页

作者： i. dinaharan N. Murugan Department of Mechani.al Engi.eeri.g Coimbatore Institute of TechnologyCoimbatore – 641014 Tamil Nadu India. Department of Mechani.al Engi.eeri.g Karunya University Coimbatore – 641114Tamil Nadu India.

Over the last decade attempts have been made to fabri.ate alumi.um matri. composi.es (AMCs) rei.forced wi.h several cerami. parti.les. Alumi.um rei.forced wi.h ZrB2 parti.les i. one such AMC. The successful appli.ati.n of new ki.d of AMCs li.s i. the development of secondary processes such as machi.i.g and joi.i.g. Fri.ti.n sti. weldi.g (FSW) i. a relati.ely new soli. state weldi.g whi.h overcomes all the setbacks of fusi.n weldi.g of AMCs. An attempt has been made to fri.ti.n sti. weld AA6061/ 0-10 wt. % ZrB2 i.-si.u composi.es and to develop empi.i.al relati.nshi.s to predi.t the sli.i.g wear behavi.r of butt joi.ts. Four factors, fi.e levels central composi.e rotatable desi.n has been used to mi.i.i.e the number of experi.ents. The factors consi.ered are tool rotati.nal speed, weldi.g speed, axi.l force and wei.ht percentage of ZrB2. The effect of these factors on wear rate (W) and wear resi.tance (R) of the welded joi.ts i. analyzed and the predi.ted trends are di.cussed.

关键词： Metal matri. composi.e Fri.ti.n sti. weldi.g Wear.

Assessment of Ti.6Al-4V parti.les as a rei.forcement for AZ31 magnesi.m alloy-based composi.es to boost ducti.i.y i.corporated through fri.ti.n sti. processi.g

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Journal of Magnesi.m and Alloys 2022年第4期10卷 979-992页

作者： i.aac dinaharan Shuai.Zhang Gaoqi.ng Chen Qi.gyu Shi i.M-Joi.t Lab Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China The State Key Laboratory of Tri.ology Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China

Poor ducti.i.y i. the pri.ary concern of magnesi.m matri. composi.es(MMCs)i.fli.ted by non-deformable cerami. parti.le *** parti.les whi.h melt at elevated temperature can be used as rei.forcement to i.prove the deformati.n ***-6Al-4V parti.les rei.forced AZ31 MMCs were produced through fri.ti.n sti. processi.g(FSP)whi.h was carri.d out i. a tradi.i.nal verti.al mi.li.g *** mi.rostructural features as well as the response to external tensi.e load were explored.A homogenous di.tri.uti.n of Ti.6Al-4V was achi.ved at every part of the sti. *** was no chemi.al decomposi.i.n of ***,Ti.6Al-4V di. not react wi.h Al and Zn present i. AZ31 alloy to form new compounds.A conti.uous strong i.terface was obtai.ed around Ti.6Al-4V parti.le wi.h the ***-6Al-4V parti.les underwent breakage duri.g processi.g due to severe plasti. *** was a remarkable refi.ement of grai.s i. the composi.e caused by dynami. recrystalli.ati.n i. addi.i.n to the pi.ni.g of smaller si.e broken *** di.locati.ns were observed i. the matri. because of plasti. deformati.n and the associ.ted strai. ***-6Al-4V parti.les i.proved the tensi.e behavi.r and assi.ted to obtai. appreci.ble deformati.n before *** mode of fai.ure was avoi.ed.

关键词： Magnesi.m matri. composi.e Fri.ti.n sti. processi.g Ti.6Al-4V Mi.rostructure Tensi.e strength

i.fluence of Multi.pass Fri.ti.n Sti. Processi.g on Mi.rostructure and Mechani.al Properti.s of Di. Cast Al–7Si.3Cu Alumi.um Alloy

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Acta Metallurgi.a Si.i.a(Engli.h Letters) 2016年第5期29卷 431-440页

作者： L.John Baruch R.Raju V.Balasubramani.n A.G.Rao i.dinaharan Department of Mechani.al Engi.eeri.g Madanapalle Institute of Technology and ScienceMadanapalleAndhra Pradesh 517325India Department of i.dustri.l Engi.eeri.g College of EngineeringAnna UniversityChennaiTamil Nadu 600025India Department of Manufacturi.g Engi.eeri.g Centre for Materials Joining and Research(CEMAJOR)Annamalai UniversityAnnamalai NagarChidambaramTamil Nadu608002India Mari.e Materi.ls Di.i.i.n Naval Materials Research LaboratoryThaneMaharashtra 421506India Department of Mechani.al Engi.eeri.g Sci.nce University of JohannesburgAuckland Park Kingsway CampusJohannesburg 2006South Africa

The i.fluence of overlap multi.pass fri.ti.n sti. processi.g on the mi.rostructure and the mechani.al properti.s, i. parti.ular, strength, ducti.i.y and hardness of di. cast A1-7Si.3Cu alumi.um alloy was i.vesti.ated. i. was observed that i.crease i. the number of overlap passes fri.ti.n sti. processi.g resulted i. si.ni.i.ant refi.ement and redi.tri.uti.n of alumi.um si.i.on eutecti. phase and eli.i.ati.n of casti.g porosi.i.s. The mi.rostructural refi.ement by the fri.ti.n sti. processi.g not only i.creases the ulti.ate tensi.e strength from 121 to 273 MPa, but also i.creases the ducti.i.y as observed by the i.crease i. fracture strai. from 1.8% to 10%. Analysi. of the fractured surface reveals that the mi.rostructural refi.ement obtai.ed by fri.ti.n sti. processi.g plays a vi.al role i. transformi.g the fracture mode from completely mi.ed mode to the ducti.e mode of the fracture wi.h i.creasi.g number of passes. The change i. the si.e, shape, morphology and di.tri.uti.n of eutecti. si.i.on parti.les and eli.i.ati.n of the porosi.i.s are the mai. reasons for the i.creases i. tensi.e strength and ducti.i.y due to fri.ti.n sti. processi.g.

关键词： Fri.ti.n sti. processi.g Overlap multi.pass Mi.rostructure Mechani.al properti.s

i.fluence of processi.g route on mi.rostructure and wear resi.tance of fly ash rei.forced AZ31 magnesi.m matri. composi.es

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Journal of Magnesi.m and Alloys 2019年第1期7卷 155-165页

作者： i.dinaharan S.C.Vetti.el M.Balakri.hnan E.T.Aki.labi Department of Mechani.al Engi.eeri.g Sci.nce University of JohannesburgAuckland Park Kingsway CampusJohannesburg 2006 GautengSouth Africa Department of Mechani.al Engi.eeri.g Chandigarh College of Engineering and TechnologyChandigarh 160019India Department of Mechani.al Engi.eeri.g Nehru Institute of Engineering and TechnologyCoimbatore 641105 Tamil NaduIndia

Uti.i.i.g fly ash(FA)as rei.forcement for magnesi.m matri. composi.es(MMCs)bri.gs down the producti.n cost and the land *** alloy AZ31 was rei.forced wi.h FA parti.les(10 vol.%)successfully by two di.ferent processi.g methods namely conventi.nal sti. casti.g and fri.ti.n sti. processi.g(FSP).The mi.rostructural features were observed usi.g opti.al mi.roscope,scanni.g electron mi.roscope and electron backscatter *** sli.i.g wear behavi.r was tested usi.g a pi.-on-di.c wear *** sti. cast composi.e showed i.homogeneous parti.le di.persi.n and coarse grai. *** of the FA parti.les decomposed and reacted wi.h the matri. alloy to produce undesi.able ***,FSP composi.e showed superi.r parti.le di.persi.n and fi.e,equi.xed grai.s by dynami. *** parti.les encountered di.i.tegrati.n but there was no i.terfaci.l *** composi.e demonstrated hi.her strengtheni.g and wear resi.tance to that of sti. cast *** morphology of the worn surface and the wear debri. were studi.d i. detai..

关键词： Magnesi.m matri. composi.e Sti. casti.g Fri.ti.n sti. processi.g Fly ash Wear

Dry sli.i.g wear behavi.r of AA6061/ZrB_2 i.-si.u composi.e

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Transacti.ns of Nonferrous Metals Soci.ty of Chi.a 2012年第4期22卷 810-818页

作者： i.dinaharan N.MURUGAN Department of Mechani.al Engi.eeri.g Karunya UniversityCoimbatore-641 114Tamil NaduIndia Department of Mechani.al Engi.eeri.g Coimbatore Institute of TechnologyCoimbatore-641 014Tamil NaduIndia

The dry sli.i.g wear behavi.r of AA6061/ZrB2 i.-si.u composi.e prepared by the reacti.n of i.organi. salts K2ZrF6 and KBF4 wi.h molten alumi.um was *** attempt was made to develop a mathemati.al model to predi.t the wear rate of AA6061/（0-10%） ZrB2 i.-si.u ***-factor,fi.e-level central composi.e rotatable desi.n was used to mi.i.i.e the number of *** factors consi.ered are sli.i.g veloci.y,sli.i.g di.tance,normal load and mass fracti.n of ZrB2 *** effect of these factors on the wear rate of the fabri.ated composi.e was analyzed and the predi.ted trends were di.cussed by observi.g the wear surface *** i.-si.u formed ZrB2 parti.les enhance the wear performance of the *** wear rate of the composi.e bears a proporti.nal relati.nshi. wi.h the sli.i.g veloci.y,sli.i.g di.tance and normal load.

关键词： alumi.um matri. composi.es ZrB2 dry sli.i.g wear mathemati.al model

Mi.rostructural Characteri.ati.n and Tensi.e Behavi.r of Ruti.e(Ti._2)-Rei.forced AA6063 Alumi.um Matri. Composi.es Prepared by Fri.ti.n Sti. Processi.g

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Acta Metallurgi.a Si.i.a(Engli.h Letters) 2019年第1期32卷 52-62页

作者： Sahayam Joyson Abraham i.aac dinaharan Jebaraj Davi. Raja Selvam Esther Ti.i.ayo Aki.labi Department of Mechani.al Engi.eeri.g V V College of Engineering Department of Mechani.al Engi.eeri.g Sci.nce University of Johannesburg Auckland Park Kingsway Campus Department of Mechani.al Engi.eeri.g Karunya Institute of Technology and Sciences

Ruti.e(Ti._2) parti.le-rei.forced alumi.um matri. composi.es were prepared by fri.ti.n sti. processi.g. The mi.rostructure was studi.d usi.g conventi.nal and advanced characteri.ati.n techni.ues. Ti._2 parti.les were found to be di.persed uni.ormly i. the composi.e. Clusters of Ti._2 parti.les were observed at a hi.her parti.le content of 18 vol%. The i.terface between the Ti._2 parti.le and the alumi.um matri. was characteri.ed by the absence of pores and reacti.e ***-grai. boundari.s, ultra-fi.e grai.s and di.locati.n densi.y were observed i. the composi.es. Ti._2 parti.les i.proved the mechani.al properti.s of the composi.es. However, a drop i. tensi.e strength was observed at a hi.her parti.le content due to cluster formati.n. All the prepared composi.es exhi.i.ed ducti.e mode of fracture.

关键词： Alumi.um matri. composi.es Fri.ti.n sti. processi.g Ruti.e Mi.rostructure Tensi.e strength

Dry sli.i.g wear behavi.r of sti. cast AA6061-T6/AlN_p composi.e

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Transacti.ns of Nonferrous Metals Soci.ty of Chi.a 2014年第9期24卷 2785-2795页

作者： B.ASHOK KUMAR N.MURUGAN i.dinaharan Department of Mechani.al Engi.eeri.g Faculty of EngineeringErode Builder Educational Trust’s Group of InstitutionsNathakadaiyur Kangayam – 638108 Tirupur District Tamil Nadu India Department of Mechani.al Engi.eeri.g Coimbatore Institute of TechnologyCoimbatore – 641014 Tamil Nadu India Department of Mechani.al Engi.eeri.g V V College of Engineering Tisaiyanvilai – 627657 Tamil Nadu India

The dry sli.i.g wear behavi.r of AA6061 matri. composi.e rei.forced wi.h alumi.i.m ni.ri.e parti.les（AlN） produced by sti. casti.g process was i.vesti.ated. A regressi.n model was developed to predi.t the wear rate of the prepared composi.e. A four-factor, fi.e-level central composi.e rotatable desi.n matri. was used to mi.i.i.e the number of experi.ental runs. The factors consi.ered i. thi. study were sli.i.g veloci.y, sli.i.g di.tance, normal load and mass fracti.n of AlN rei.forcement i. the matri.. The developed regressi.n model was vali.ated by stati.ti.al software SYSTAT 12 and stati.ti.al tools such as analysi. of vari.nce（ANOVA） and student＇s t test. i. was found that the developed regressi.n model could be effecti.ely used to predi.t the wear rate at 95% confi.ence level. The i.fluence of these factors on wear rate of AA6061/AlNp composi.e was analyzed usi.g the developed regressi.n model and predi.ted trends were di.cussed wi.h the ai. of worn surface morphologi.s. The regressi.n model i.di.ated that the wear rate of cast AA6061/AlNp composi.e decreased wi.h an i.crease i. the mass fracti.n of AlN and i.creased wi.h an i.crease of the sli.i.g veloci.y, sli.i.g di.tance and normal load acti.g on the composi.e speci.en.

关键词： alumi.i.m matri. composi.e parti.le-rei.forcement wear regressi.n model

Predi.ti.n of i.fluence of process parameters on tensi.e strength of AA6061/Ti. alumi.um matri. composi.es produced usi.g sti. casti.g

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Transacti.ns of Nonferrous Metals Soci.ty of Chi.a 2016年第6期26卷 1498-1511页

作者： J.JEBEEN MOSES i.dinaharan S.JOSEPH SEKHAR Department of Mechani.al Engi.eeri.g St.Xavier's Catholic College of Engineering Department of Mechani.al Engi.eeri.g Sci.nce University of JohannesburgAuckland Park Kingsway Campus

Sti. casti.g was used to produce AA6061/15%Ti. （mass fracti.n） alumi.um matri. composi.es （AMCs）. An empi.i.al relati.nshi. was developed to predi.t the effect of sti. casti.g parameters on the ulti.ate tensi.e strength （UTS） of AA6061/Ti. AMCs. A central composi.e rotatable desi.n consi.ti.g of four factors and fi.e levels was used to mi.i.i.e the number of experi.ents, i.e., casti.gs. The factors consi.ered were sti.ri.g speed, sti.ri.g ti.e, blade angle and casti.g temperature. The effect of those factors on the UTS of AA6061/Ti. AMCs was deri.ed usi.g the developed empi.i.al relati.nshi. and eluci.ated usi.g mi.rostructural characteri.ati.n. Each factor si.ni.i.antly i.fluenced the UTS. The vari.ti.n i. the UTS was attri.uted to porosi.y content, cluster formati.n, segregati.n of Ti. parti.les at the grai. boundari.s and homogenous di.tri.uti.n i. the alumi.um matri..

关键词： alumi.um matri. composi.e sti. casti.g Ti. tensi.e strength

Synthesi.e of AZ31/Ti. magnesi.m matri. composi.es usi.g fri.ti.n sti. processi.g

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Journal of Magnesi.m and Alloys 2015年第1期3卷 76-78页

作者： M.Balakri.hnan i.dinaharan R.Palani.el R.Si.aprakasam Department of Mechani.al Engi.eeri.g Akshaya College of Engineering and TechnologyCoimbatore 642109Tamil NaduIndia Department of Mechani.al Engi.eeri.g V V College of EngineeringTisaiyanvilai 627657Tamil NaduIndia Department of Mechani.al Engi.eeri.g Roever College of Engineering and Technology621212 PerambalurTamil NaduIndia Department of Aeronauti.al Engi.eeri.g Karpagam UniversityCoimbatore 641021Tamil NaduIndia

Fri.ti.n sti. processi.g(FSP)i. a novel soli. state techni.ue to synthesi.e metal matri. *** the present work,an attempt has been made to synthesi.e AZ31/Ti. magnesi.m matri. composi.es usi.g FSP and to analyze the mi.rostructure usi.g scanni.g electron mi.roscopy.A groove was prepared on 6 mm thi.k AZ31 magnesi.m alloy plates and compacted wi.h Ti. *** wi.th of the groove was vari.d to result i. four di.ferent volume fracti.n of Ti. parti.les(0,6,12 and 18 vol.%).A si.gle pass FSP was carri.d out usi.g a tool rotati.nal speed of 1200 rpm,traverse speed of 40 mm/mi. and an axi.l force of 10 *** electron mi.roscopy was employed to study the mi.rostructure of the synthesi.ed *** results i.di.ated that Ti. parti.les were di.tri.uted uni.ormly i. the magnesi.m matri. wi.hout the formati.n of *** was no i.terfaci.l reacti.n between the magnesi.m matri. and the Ti. *** parti.les were properly bonded to the magnesi.m matri..

关键词： Magnesi.m alloy Fri.ti.n sti. processi.g Ti. Mi.rostruture