(IIHFWRI7KHDWWUHDWPHQWRQ0LFURVWUXFWXUH
DQG0HFKDQLFDOSURSHUWLHVRI$DOOR\
UHLQIRUFHGZLWK5+$FRPSRVLWHV
$EGXO.KXUVKLG
Assistant Professor, Department Of Mechanical , Avanthi Engineering College , Tagarapuvalasa
7DGDOD$NKLO
Assistant Professor, Department Of Mechanical , Avanthi Engineering College , Tagarapuvalasa
6KHLN*XODP7DMXGGLQ
Bachelor Of Technology,Department Of Mechanical , Avanthi Engineering College , Tagarapuvalasa
3UDPRGK.XPDU
Bachelor Of Technology, Department Of Mechanical , Avanthi Engineering College , Tagarapuvalasa
$EVWUDFW7KHUHVHDUFKZRUNPDLQO\GHDOVZLWKWKHKHDWWUHDWPHQWSURFHVVZHUHVDPSOHVDUHIDEULFDWHGE\XVLQJ$ DOOR\DVDQ0DWUL[DQG5+$ULFHKXVNDVK1DQRSDUWLFOHVDVUHLQIRUFHPHQW7KH$FRPSRVLWHVSHFLPHQVDUHKHDW WUHDWHGLQDLQGXFWLRQIXUQDFHDWDWHPSDW IRU0LQ7KHVSHFLPHQVZHUHFRROHGE\XVLQJGLIIHUHQWPHGLXP'U\ VDQG 2LO EDWK ZDWHU &RROLQJWKH PLFUR VWUXFWXUH LV VWXGLHG E\ XVLQJ RSWLFDO 0LFURVFRSH ILQDOO\ WKH 0HFKDQLFDO SURSHUWLHVRIWKHKHDWWUHDWHGVDPSOHVDUHVWXGLHGDQGUHVXOWVZHUHSUHVHQWHG
.H\SRLQWV5+$$DOOR\7HQVLOHVWUHQJWK0LFURKDUGQHVV
, ,1752'8&7,21
SUHVHQWZRUNLVWRVWXG\WKHPLFURVWUXFWXUHDQGPHFKDQLFDOSURSHUWLHVRI7KHDWWUHDWHG$VDPSOHVUHLQIRUFHG ZLWKWKH5+$1DQRFRPSRVLWHV
,, (;3(5,0(17$7,21352&('85(
Materials and manufacturing process:
7KHUHLQIRUFHPHQWDOOR\XVHGLQWKHSUHVHQWVWXG\LV$ZKLFKKDVWKHFKHPLFDOFRPSRVLWLRQLQWHUPVRIZHLJKW SHUFHQWDJHOLVWHGLQWKHWDEOH7KHPDWUL[5LFHKXVNDVKKDYLQJVL]HRIPZKLFKLVXVHGLQWKHSUHVHQWVWXG\ DOVRKDVFKHPLFDOFRPSRVLWLRQLQWHUPVRIZHLJKWSHUFHQWDJHLVOLVWHGLQWKHWDEOH
7DEOH&KHPLFDOFRPSRVLWLRQRI$$ODOOR\
7DEOH&KHPLFDOFRPSRVLWLRQRI5+$
2.2Optical Emission Spectroscopy:
,WVLVDFKHPLFDOPLFURDQDO\VLVWHFKQLTXHXVHGWRILQGWKHFKHPLFDOFRPSRVLWLRQRI$DOOR\7KHWHVWLV SHUIRUPHG IRU WKH FRQIRUPDWLRQ RI $ DOOR\ LQ RUGHU WR SHUIRUP WKH UHVHDUFK ZRUNILJ VKRZ WKH 2SWLFDO (PLVVLRQ6SHFWURVFRS\
&RQVWLWXHQW 6L )H &X 0Q 0J =Q 1L 7L
&RQVWLWXHQW 6,2 *UDSKLWH &D2 0J2 .2 )H2
)LJ2SWLFDO(PLVVLRQ6SHFWURVFRS\
2.3 Specimen preparation:
7KH PDWUL[ PDWHULDOV IRUWKH SUHSDUDWLRQRI VDPSOHV LV $ DQGUHLQIRUFHPHQW DV ULFH KXVNDVKSDUWLFOHV ,QLWLDOO\WKHUHLQIRUFHPHQWSDUWLFOHVZDVSUHKHDWHGLQDFUXFLEOHVIRUPLQWRUHPRYHWKHPRLVWXUHFRQWHQW7KH PDWUL[ PDWHULDO $ DOOR\ ZKLFK LV XVHG LQ WKH SUHSDUDWLRQ RI VDPSOHV LV NHSW LQ JUDSKLWH FUXFLEOH DQG WKHQ KHDWHGXSWRஈ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
)LJ(OHFWULF)XUQDFHZLWK0HFKDQLFDO6WLUUHU
)LJ)LQDO&DVWFRPSRVLWHEODQN
,,, 5(68/7$1'',6&866,21
3.1. Microstructure observations on the T6 heat treated samples:
7KHIROORZLQJILJVKRZVWKHPLFURVWUXFWXUHRIKHDWWUHDWHGDQGXQKHDWWUHDWHG00&7KHZKLWHUHJLRQLVGXH WRWKHSUHVHQWRIPDWUL[DQGWKHEODFNUHJLRQLVGXHWRSUHVHQFHRIHXWHFWLFVLOLFRQ
)LJ0LFURVFRSLF,PDJH2IXQKHDWWUHDWHG)LJ0LFURVFRSLF,PDJH2I6DPSOH 6DPSOHFRROHGLQ2LOEDWK
)LJ0LFURVFRSLF,PDJH2I6DPSOHFRROHGLQ)LJ0LFURVFRSLF,PDJH2I6DPSOHFRROHGLQ ZDWHUEDWK6DQG
3.2 Hardness:
7KHKDUGQHVVWHVWIRUWKHVSHFLPHQLVGRQHE\XVLQJWKH9LFNHUV¶VKDUGQHVVWHVWLQJDVVKRZQLQILJPDFKLQH
)LJ9LFNHUV+DUGQHVV7HVWLQJPDFKLQH)LJ6SHFLPHQVZLWK,QGHQWDWLRQ
7DEOH6XPPDU\RI+DUGQHVVRIWUHDWHGDQGXQWUHDWHG$5+$VDPSOHV
+HDWWUHDWPHQWSURFHVV 7UDLO 7ULDO 7ULDO $YHUDJH
8QWUHDWHG
2LOFRROHG
:DWHUFRROHG
)LJ+DUGQHVVUHVXOWVRIXQWUHDWHGDQGKHDWWUHDWHG6DPSOHV
3.3 Tensile Test:
7KHWHQVLOHWHVWRIWKHVSHFLPHQVLVSHUIRUPHGRQWKHXQLYHUVDOWHVWLQJPDFKLQH7KHWHQVLOHSURSHUWLHVVXFK
DVWHQVLOHVWUHQJWK\LHOGVWUHQJWKDQGHORQJDWLRQDUHUHSUHVHQWHGLQ7DEOHIURPWKHEHORZWDEOHLWLVFOHDUWKDW VDPSOHVZKLFKKDGXQGHUJRQHKHDWWUHDWPHQWH[KLELWKLJKWHQVLOHVWUHQJWKFRPSDUHWRWRWKHVDPSOHVZKLFKDUH XQWUHDWHG
7DEOH6XPPDU\RI7HQVLOH6WUHQJWKRIWUHDWHGDQGXQWUHDWHG$5+$VDPSOHV
6/1R +HDWWUHDWPHQWSURFHVV <LHOG
VWUHVV03D 8OWLPDWH7HQVLOHVWUHQJWK03D (ORQJDWLRQ
8QWUHDWHG
2LOFRROHG
:DWHUFRROHG
)LJ*UDSKVKRZLQJ<LHOGVWUHVVRIXQWUHDWHGDQGKHDWWUHDWHG6DPSOH
)LJ*UDSKVKRZLQJ<LHOGVWUHVVRIXQWUHDWHGDQGKHDWWUHDWHG6DPSOHV
,9 &21&/86,216
From the above results we found that
7KHKDUGQHVVRIWKHVDPSOHZKLFKLVWUHDWHGZLWKWKHRLOEDWKKDVLQFUHDVHKDUGQHVVEHFDXVHWKHKHDW GLVVLSDWLRQFDSDFLW\LQRLOEDWKLVOHVVHUDQGGXHWRWKHIRUPDWLRQRIPRUHDPRXQWRIHXWHFWLFVLOLFRQLQ WKHVWUXFWXUH
7KHWHQVLOHVWUHQJWKRIWKHVSHFLPHQLVLQFUHDVHGIRUWKHVDPSOHVZKLFKDUHKHDWWUHDWHGXQGHUZDWHUEDWK 7KHKDUGQHVVRIWKHVDPSOHVLVIRXQGWREHGHFUHDVHLQWKHVSHFLPHQVZKLFKDUHFRROHGLQVDQGEHFDXVH RI VLOLFRQ FRQWHQW SUHVHQW LQ VDQG $V WKH VLOLFRQ FRQWHQW LQ WKH VDQG LQFUHDVHV WKH KHDW GLVVLSDWLRQ FDSDFLW\RIWKHVDPSOHLQFUHDVHVKHQFHLWUHVWULFWVWKHIRUPDWLRQVRIQHZJUDLQV
5()(5(1&(6
>@ 0+*RPDVKFKDQG$9LNURY´6TXHH]H&DVWLQJDQRYHUYLHZ´-RXUQDORIPDWHULDOSURFHVVLQJ7HFKQRORJ\YRORSS
>@ 0+0XOD]LPRJOX5$/'UHZDQG-(*UX]OHVNL(OHFWULFDO&RQGXFWLYLW\RI$OXPLQXPULFK$O6L0JDOOR\V-RI0DW6FL/HWWHUV 9ROSS
>@ 66KLYNXPDU&.HOOHUDQG'$SHOLDQ$JLQJ%HKDYLRULQ&DVW$O6L0J$OOR\V$)67UDQV9ROSS
>@ -(*UX]OHVNLDQG%0&ORVVHW7KH7UHDWPHQWRI/LTXLG$OXPLQXP6LOLFRQ$OOR\V7KH$PHULFDQ)RXQGU\PHQV6RFLHW\,QF 86$'HV3ODLQHV,OOLQRLV
>@ / %DFNHUXG * &KDL - 7DPPLQHQ 6ROLGLILFDWLRQ &KDUDFWHULVWLFV RI $OXPLQXP $OOR\V 9RO )RXQGU\ $OOR\V 7KH $PHULFDQ )RXQGU\PHQV6RFLHW\6NDQDOXPLQLXP
>@ /+HXVOHU:6FKQHLGHU5HFHQW,QYHVWLJDWLRQVRI,QIOXHQFHRI3RQ1DDQG6U0RGLILFDWLRQRI$O6LDOOR\V$)67UDQV9RO SS
>@ 3'+HVVDQG(9%ODFNPXQ6WURQWLXPDV0RGLI\LQJ$JHQWIRU+\SRHXWHFWLF$OXPLQXP6LOLFRQ$OOR\V$)67UDQVSS >@ %&ORVVHWDQG-(*UX]OHVNL0HFKDQLFDO3URSHUWLHVRI$$OOR\V0RGLILHGZLWK3XUH6WURQWLXP$)67UDQVSS >@ *$(GZDUGV.6WLOOHU*/'XQORSDQG0-&RXSHU7KHSUHFLSLWDWLRQVHTXHQFHLQ$,0J6LDOOR\V--$FWD0DWHUDOLD /
>@0-H\DNXPDU0+DPHG66KDQNDU+HDWWUHDWPHQWRI$DOXPLQXPDOOR\HIIHFWRITXHQFKUDWHDQGQDWXUDODJLQJ706WK $QQXDO 0HHWLQJDQG([KLELWLRQ,6DQ)UDQFLVFR&$/
