SSRG International Journal of Mechanical Engineering (SSRG-IJME) volume 2 Issue 7 July 2015

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Lester Perry
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1 RG Intrnatin Jurn Mchanic Enginring (RG-IJME vu Issu 7 Juy 5 iing war bhavir AAB 88 t st Virnra ingh Rana, Arun gi, DrBGangi 3, MrBBhanari 4,, 3, 4 (Dpartnt Mchanic Enginring HB Garhw Univrsity ABTRACT: In th prsnt wrk, tungstn carbi (WC-C an chriu carbi bas cating (Cr 3 C -icr wr psit n crciy avaiab AAB 88 t st th substrat atri by Dtnatin Gun-spray prcss an anyz with rgar t thir prfranc unr siing war cnitins iing war tsting achin was us fr war tst fr cat as w as uncat spcins at cnstant a i at 5 gra an at iffrnt ti i inut, 9 inut an inut; which rsuts that Tungstn carbi cating (WC-C shws bttr war rsistanc prprtis in cparisn t uncat AAB 88 t st an chriu carbi bas cating (Cr 3 C -icr Kywrs AAB 88 t st, tnatin gun I ITRODUCTIO In th inustri appicatins thr ar svr atris that ar bing us an thr chanic an physic prprty pays a ajr r in thir succssfu ipntatin as t On such atri is AAB 88 s knwn as c wrk t st wiy us in punch an i Thr ar svr situatin war an tar u t frictin in a sip cpnnt an ths can a t faiur th atri, ng with th faiur t u t rativ tin if nt prpry sign T iprv th pructivity an incras th if ts incuing ts, craics, pyrs, an cpsits can b cat by siiar r issiiar atris Priary purps cating is usuy t cbat siing, abrasin war which is vry tn in rativ tin appicatins Thr ar varius ths fr appi cating On th bst th is thr spray cating Thr spraying, a grup cating prcsss in which finy ivi tic r nn-tic atris ar psit in a tn r si tn cnitin t fr a cating [] Th cating atri ay b in th fr pwr, craicr, wir, r tn atris [] A ajr avantag thr spray prcsss is th xtry wi varity atris that can b us t pruc catings [3, 4] Virtuy any atri that ts withut cpsing can b us A scn ajr avantag is th abiity st thr spray prcsss t appy catings t substrats withut significant hat input Thus, atris with vry high ting pints, such as tungstn, can b appi t finy achin, fuy hat-trat parts withut changing th prprtis th part an withut xcssiv thr istrtin th part A thir avantag is th abiity, in st cass, t strip f an rcat wrn r aag catings withut changing part prprtis r insins [5] Thr spray prcsss that hav bn cnsir t psit th catings ar nist bw []: [] Fa spraying with a pwr r wir [] Ectric arc wir spraying [3] Pasa spraying [4] C spray [5] High Vcity Oxy-fu (HVOF spraying [] Dtnatin Gun Hr w ar using tnatin gun prcss fr appi cating u t thir avantag vr thr thr spraying prcss: [] Incras in war rsistanc by svr tis suprir t thr cating tchniqus currnty avaiab in Inian arkt [] Dns icrstructur (-% prsity [3] th surfac finish (-4 icrtr Rauch sthr finishs cu b btain by pst-cating grining [4] Extry high cating bn strngth (>, psi [5] Vry Lw substrat tpraturs [] Abiity t rbui an rpair th cat parts II EXPERIMET DETAIL Crciy avaiab AAB 88 t st was us as th substrat atri an crciy avaiab tizing pwrs nay WC-C an Cr 3 C -icr wr us fr th purps cating whs chic cpsitin is givn in tab Tab : Chic cpsitin (wt % th substrat us Ent ubstrat C 9 i 9 3 Mn 5 4 Cr 78 5 M 5 V 5 7 F Banc Dvpnt Cating: ubstrat Prparatin Prir t th cating, th AAB 88 t st insins 3 x fr cyinric fr abrasin can with actn an grit bast at a prssur 5 kg/c using uiniu I: 3 83 wwwintrnatinjurnssrgrg Pag 9

2 RG Intrnatin Jurn Mchanic Enginring (RG-IJME vu Issu 7 Juy 5 xi(a O 3 grits siz 3 gra an again can an ri Th stanf istanc in sht basting was kpt btwn -7 Dpsitin Cating: Th grit bast substrat was h suitaby in a fixtur an th cating psitin was carri ut within th saps in th statinary cnitin with gun travrsing t an fr t btain th sir cating thicknss Th cating saps wr carri ut at VX Pwr M urfac Enginring (Pvt Liit, Gratr ia Th spraying cnitins apt fr th catings ar givn in tab Tab : praying cnitin apt fr Dtnatin spray prcss Paratrs WC- C Cr 3 C - icr O fw rat 4 (LPH C H fw rat 4 4 (LPH 3 Carrir 9 4 gas(itrgn fw rat ( 3 /h 4 pray 5 5 istanc( 5 Frquncy shts (shts/sc 3 3 DETOATIO GU A Dtnatin gun cnsists a watr c barr svr ft ng an abut n inch in iatr with s assciat vuing fr gass an pwr, as shwn schaticy in Figur A carfuy asur ixtur gass, usuy xygn an actyn, is f t th barr ng with a charg pwr (usuy with a partic siz ss than icrns A spark is us t ignit th gas an th rsuting tnatin wav hats an accrats th pwr as it vs wn th barr [7] Th gas is traving at a suprsnic vcity an th pwr is ntrain fr a sufficint istanc fr it t b accrat t a suprsnic vcity as w, typicy abut 7 /sc (4 ft/sc [8] A pus nitrgn gas is us t purg th barr aftr ach tnatin This prcss is rpat any tis a scn Each iniviu tnatin rsuts in th psitin a circ (isk cating a fw icrns thick an abut n inch in iatr [9] Th cating is a any vrapping isks Carfu fuy autat isk pacnt rsuts in a vry unifr cating thicknss an a rativy sth, panar surfac Dtnatin gun catings thus cnsist utip ayrs nsy pack, thin partics tiy bn t th surfac [] Fig : chatic Dtnatin Gun Prcss [] III TET APPARATU WEAR TUDY UIG PI-O-DIC WEAR TET RIG: 3 Exprint t Up: Dry siing war tsts fr th uncat an tnatin spray AAB 88 t st, wr cnuct using a pin-n-isc achin [M: ED-] phtgraphs th st up th achin ar shwn in Figur 3 Th tsts wr cnuct in air having rativ huiity in rang fr 4 t 75 % War tsts wr prfr n th pin spcins that ha fat surfacs in th cntact rgins an th run crnr 3 iing War tuis: Th pins wr pish with ry papr an bth isc an th pin wr can an ri bfr carrying ut th tst Th pin was a against th isc thrugh a a aing syst Th war tst fr cat as w as uncat spcins was cnuct at cnstant a i at 5 gra an at iffrnt ti i inut, 9 inut an inut Th track raii fr th siing isc wr kpt at 37 Th sp th rtatin ( rp th isc fr cass was s ajust t kp th inar siing vcity at a cnstant vu 9 /s War tsts hav bn carri ut fr a tt siing istanc 339, s that ny tp cat surfac was xps fr ach tnatin spray sap Wi sss ach sap wr asur aftr, 9, inuts t trin th war ss Th pin was rv fr th hr aftr ach run, c t r tpratur, brush iy t rv s war bris, gh an fix again in xacty th sa psitin in th hr s that th rintatin th siing surfac rains unchang Th has bn asur by a icr banc t an accuracy g I: 3 83 wwwintrnatinjurnssrgrg Pag

RG Intrnatin Jurn Mchanic Enginring (RG-IJME vu Issu 7 Juy 5 istanc an ti Wi ss incrass as th ti incrass Fig : (a Pin-n-isc war tst achin an (b Wighing apparatus Th pin was h statinry against th

3 RG Intrnatin Jurn Mchanic Enginring (RG-IJME vu Issu 7 Juy 5 istanc an ti Wi ss incrass as th ti incrass Fig : (a Pin-n-isc war tst achin an (b Wighing apparatus Th pin was h statinry against th cuntr fac a rtating isc a AAB 88 t st at 74 track iatr AAB 88 t st is a pain carbn st; cas harn t 5 HRC as prvi with th pin-n-isc achin Th tchnic ata an spcificatin th achin is givn in th tab 3: Tab 3Tchnic ata an spcificatin th achin Paratr Min Max Pin Diatr Lngth 3 Disc Diatr thick & 8 War track ata 5 8 Disc rp r a Dry iing War Bhaviur: On th basis iffrnt paratr ik siing istanc, ss an ti w hav stui th siing bhaviur iffrnt sap withut cat, WC-C cat n AAB 88 t st an Cr₃C₂-i-Cr cat n AAB 88 t st Thr rsut an iscussin ar givn bw: Tab 4 Uncat AAB 88 t st 3 Init i Wt Wt Ls s Wt 8 97 Dis k p (rp i i ng Di sta nc ( Tt Ti (i n La App i Tab 4 shws th vus ss uncat AAB 88 t st at varying siing 3 Tab 5 Cr 3 C -icr cat AAB 88 t st Initi a Ls Dis ii Tt s k ng Wt Wt Wt p Dist Ti anc (rp ( (i n La App i Tab 5 shws th vus ss Cr 3 C - i-cr cat AAB 88 t st at varying siing istanc an ti In this cas ss is iniu as cpar t uncat AAB 88 t st Tab WC-C cat AAB 88 t st 3 Init i Wt Wt Ls s Wt 3 Dis k p (rp ii ng Dista nc ( T t Ti ( in La Ap pi Tab shws ss WC-C cat Assab88 t st at varying siing istanc an ti In this cas ss is iniu as cpar t uncat AAB 88 t st 34 Ccuatins War Rat Th war rat ata fr th cat as w as uncat spcins wr ptt with rspct t siing istanc t stabish th war rat War rat was stiat by asuring th ass in th spcin aftr ach tst an ass ss, in th spcin was btain Car has bn takn aftr ach tst t avi ntrapnt war bris in th spcin War rat which rats t th ass ss t siing istanc (L was ccuat using th xprssin: I: 3 83 wwwintrnatinjurnssrgrg Pag

4 RG Intrnatin Jurn Mchanic Enginring (RG-IJME vu Issu 7 Juy 5 Th vutric war rat W v th spcin is rat t nsity ( an th abraing ti (t It was ccuat using th xprssin: Fr charactrizatin th abrasiv war bhavir th spcin, th spcific war rat is py This is fin as th vu ss th spcin pr unit siing istanc an pr unit appi nr a Oftn th univrs spcific war is xprss in trs th vutric war rat as Whr, V s is th siing vcity Dry siing war rat tab ar bw: Tab 7 Uncat AAB 88 t st Initia g ht Ls s 8 97 Di sk sp (r p Tt ist anc ( W ar rat / La app i Tab 7 shws th vus war rat uncat AAB 88 t st at varying siing istanc an ti War rat incrass as th ti incrass Tab 8 Cr 3 C -icr cat AAB 88 t st Initia g ht 88 8 L ss 8 Di sk sp (r p Tt ist anc ( 9 W ar rat / La app i Tab 8 shws th vus war rat nick chriu cat AAB 88 t st at varying siing istanc an ti War rat incrass as th ti incrass Tab 9 WC-C cat AAB 88 t st Init i Ls s 3 Dis k sp (rp Tt is tan c ( 9 Wa r rat / -8 L a ap pi Tab 9 shws th vus war rat tungstn carbi cat AAB 88 t st at varying siing istanc an ti War rat incrass as th ti incrass Dry siing spcific war rat in trs vutric war rat tabs ar bw: Tab Uncat AAB 88 t st Initi g ht Fi n w igh t L ss w igh t 8 9 i in g v ci ty ( /s Vu tri c war rat (3/s pc ific wa r rat (3/ L a ap pi Tab shws th vus spcific war rat uncat AAB 88 t st at varying siing istanc an ti pcific war rat incrass as th ti incrass Tab Cr 3 C -icr cat AAB 88 t st Initi g ht a g ht Lss g ht i in g v cit y ( Vu tr ic war rat (3/ s - p ci fic w ar rat ( 3/ - L a ap pi I: 3 83 wwwintrnatinjurnssrgrg Pag

5 war rat / pcific War Rat ( 3 /- Vutric wra rat ( 3 /sc RG Intrnatin Jurn Mchanic Enginring (RG-IJME vu Issu 7 Juy /s Tab shws th vus spcific war rat nick chriu cat AAB 88 t st at varying siing istanc an ti War rat incrass as th ti incrass Tab WC-C cat AAB 88 t st Ini ti a g ht L s s w i gh t 3 i in g v cit y (/ s Vu tr ic wa r rat (3/ s pc ific war rat (3/ La app i Tab shws th vus spcific war rat tungstn carbi cat AAB 88 t st at varying siing istanc an ti pcific war rat incrass as th ti incrass War rat vs siing istanc istanc (tr uncat icr WC Fig 3: War rat V s siing istanc Figur 3 shws th graph btwn th war rat an siing istanc fr uncat an cat sap It can b rfrr that war rat is axiu fr uncat wrk pic an thn fr Cr 3 C -icr cat sap Th vu war rat is iniu fr tungstn carbi sap 3E- 34E- 3E- 3E- E- E- 4E- E- E- Vutric War rat v s siing istanc 8E- E- 4E- E- E- 8E- E- 4E- E- E Distanc (tr uncat WC-C Cr3C-iCr Fig 4: Vutric war rat V s siing istanc Figur 4 shws a curv ptt btwn th vutric war rats an siing istanc Th curv shws that axiu vu war rat fr uncat sap an thn fr Cr 3 C -icr cat sap WC-C cat n AAB 88 t st shws th ssr war rat as cpar t bth uncat an Cr 3 C -icr cat sap 3E-3 E-3 E-3 E-3 9E-4 8E-4 7E-4 E-4 5E-4 4E-4 3E-4 E-4 E-4 pcific War rat v s siing istanc E istanc (tr Uncat Cr3C-iCr WC-C Fig 5: pcific war rat V s siing istanc Figur5 shws th graph btwn th spcific war rat an siing istanc Initiy th vu spcific war rat fr uncat sap cras with rspct t siing istanc but thn vu spcific war rat incras as siing istanc incras Th vu spcific war rat is axiu fr uncat sap an thn fr Cr 3 C -icr cat sap Th vu spcific war rat is iniu fr tungstn carbi sap cat sap IV COCUIO This stuy basicy vuats th siing war prprty Assab88 t st an th abv tw catings appi n it Hnc in accranc with ur atri w raw th fwing cncusins: War rsistanc th cat Assab88 t st is suprir t uncat Assab88 t st Tungstn carbi cating shws bttr war rsistanc prprtis in cas siing war tst REFERECE [] unarajan G, ivakuar G, n D, Ra rinivasa D, Ravichanra G; Th tribgic bhaviur tnatin spray TiM(C bas crt catings, Intrnatin Jurn Of Rfractry Mts an Har Matris, Vu, ubr, (, 7-8 [] Frank J Hrank, Thr pray Tringy an Cpany Origins, First Printing,, AM Intrnatin, Matris Park, OH I: 3 83 wwwintrnatinjurnssrgrg Pag 3

6 RG Intrnatin Jurn Mchanic Enginring (RG-IJME vu Issu 7 Juy 5 [3] Raksh Gy,Dr Vikas Chawa,Dr Buta ingh ihu,thr praying an Prfranc Har Catings: A Rviw, IJRMET V, Issu, [4] R Kni an RW ith, Thr pray Fring Matris, Pwr Mt Tchngis an Appicatins, V 7, AM Hanbk, AM Intrnatin, 998, p 49 [5] unarajan G, ivakuar G, n D, Ra rinivasa D, Ravichanra G; Th tribgic bhaviur tnatin spray TiM(C bas crt catings, Intrnatin Jurn Of Rfractry Mts an Har Matris, Vu, ubr, (, 7-8 [] Gy Raksh, ihu But ingh, Grw J; urfac Enginring an Dtnatin Gun pray Cating, Intrnatin Jurn Enginring tuis, Vu, ubr 3 (, [7] Chawa Vikas, ihu Buta ingh, Puri D an Prakash ; prfranc pasa spray anstructur an Cnvntin Catings, Jurn th Austrian Craic city, Vu 44, ubr, (, 5- [8] Rajaskaran B, unara Raan Gansh, Jshi V, unararajan G; Infunc tnatin gun spray uina cating n AA 3 saps unr cycic aing with an withut frtting, Tribgy Intrnatin, Vu 4, (, 35 3 [9] nrwski C, Bjar Z, Wczynski W, Pawwski A; Micrctructur charactrizatin D-gun spray F-A intrtic catings, Intrtics, Vu 8, ubr 7, [] Wang Ti-Gang, Zha hng-hng, Hua Wi-Gang, Li Jia-Ba, Gng Jun, un Cha; Estiatin rsiu strss an its ffcts n th chanic prprtis tnatin gun spray WC-C catings, Matris cinc an Enginring: A, Vu 57, ubr 3, I: 3 83 wwwintrnatinjurnssrgrg Pag 4

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