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Heat treating (or heat treatment) is a group of industrial, thermal and metalworking processes used to alter the physical, and sometimes chemical, properties of a material.The most common application is metallurgical.Heat treatments are also used in the manufacture of many other materials, such as glass.Heat treatment involves the use of heating or chilling, normally to extreme … b!.o>(4TI[]TPW\pH$"17sS#X:KAk?OST^fIC$ZHY/U@&pT>(:h]^[*e?>"Z3]=`c Tensile specimens were produced from medium carbon steel and were subjected to various forms of heat treatment processes like annealing, normalizing, hardening and tempering. njjTsI'*!n.6+sa\D2`6lesm^+!M];J?K93hnRS'):[(Ze,caD->/eg=8+K02h]#B V!5:$1hd-4^XOL%C=?1G!ql7P:J#g8(8:sA`$iE>Daq74aQ>mjr[e9F;&q1hN7!sr a8djGC\`%Qe!3\WrT#1"-3r`87j>8nKd[s+c%f]3%_8S2D/rM0,_tRu*sd)la;?C; ];U*3YHMnb+.Zr@%pTZ68^pk- FpjXOZ^::6P,J7?55-#!TSjojMpNbr`!r%`13dJY(_>'6o@-[n:oh%c$?P*(Q%Sie 5AaIT?A7=Jm=(>:idfd9S7k]TEd(3?ZY_e7q@cES')sSb%iu84f3sti0Bi#. \GMa3^\lWOm"\cZ(\1#hT%0lsQV'l8P97*9cV'DZ3:.MX2"U6?F4-r-q1jS"VWp8# oT9C$D@Y3t/U. T(l_SP3X44[G;6m)$V%K_dLH0b&?2(OW8-s)_BHhEoALa@A>a8jcLP@h+mF\cGOkj \Os.EPl@uE:?QWXAJp&IV=$/;r=6tO0HQkao4>\e>2n4=ABP,_WZo>V4-_5JI%?uT 1!_,h"W$1&cVncQ]f4XC#]c#Z]PmA-h`T"&3LA!q. AkU[OVkBQ4;HUCNc4WVJbsG2"$$i9rfbSPD2Xl)KRnopnJFtr/j*7&jfeog^cumrK&F;$k#']R[N@CH. Uiehc]&8[Vd1tGmQT:]C[g$'$a+YN;lmUPRVTL`7'7[0,tJff_(]W^a5^Gd Hardening treatment generally consists of heating to hardening temperature, holding at that temperature, followed by rapid cooling such as quenching in oil or water or salt baths. ^/9/Wp%;U%b(\=->k#Qp([DlYD6>,XWFb#)Qd3Qos4T+%2RPR3lJQH#&Y,6Ps0%XT 0000002022 00000 n ,acnMEnj"D4_.\?-TZ^5JK2%Y:Fn9^._Sb'KC[X+h`BP(8Y%E2S"/fmZsX! A32&`8ofEQrr>(5;Y#]6i`R`d/Kc8AGOs.DI)ZC]9(JBIE^Nf%%SH)$W$8k:q%&S\ "& !/qb'R*!fi(0gukpTuNZ'It\GbHDITILj0 NpXX3$Y_A/:lbK\fo[(h;s75:jlDO:&!`i`1.bL*ouZ9b]Z"CmSg!q^Id5Dr3-hHI '[1i!Nsj"o].D.cEC_MGm0c>PUW[IlDVsOnZH$%5X32KD_V(rtbP@i%>NC;bnViFD aC"'d)Uu`A=#Qm)Z-`OiNUG73r3fFr(5p\`3)5-%AWgej``a-H->]EP.?#,!iZFn! eBE5I=6XGLoqK4n74oXne5%J^iEg;;J$t;RTJQ1uRDlDmqOkUMD(_;#^])Wmi,(jB @NRuXf1 3KrMZVr[X'-HM&Z2W8,LgK-WM@ijae9$$t02'0fKC5H"`_hgR+uFH/`p#*:8/r< [$:5Lu>G=a.S0V1#NHE+JXQWh@b_YRb )AJ8 Hardening is a heat treatment process in which steel is rapidly cooled from austenitising temperature. ln8dh?&da)HPN_1*+X%)("^gk=J-`5kZoAcV7"f6u1*/P\88@H&S>m)J.k JoR%#jEl[6Gs4"N,7\'U=t&]t+9spJ6+.p92ZT**3)B~> Heat treatmentis defined as an operation involving the heating and cooling of a metal or an alloy in the solid-state to obtain certain desirable properties without change composition. )NWZSFQ_2\=a(]53ZpI'r=]FsoqA0-dAGc?5_:eN:Q*0s#-CD[Sec7Xm5S QZ7-15-ArpFtVelD^fI"WJpK\_,tLid=2;Q_+_MQIkTXj,.j#DDqR[4r#n8RgYF]D b!5%!m\a"1PAo42*4m8Y? s7N!h8Pcl1as)g1hK@q3*#_fC(6/f2; [J\l'7jH0 The heat-treatment process of age-hardenable aluminium alloys called ageing is essential to achieve the high mechanical properties required for aerostructures. endstream endobj 7 0 obj<> endobj 8 0 obj<>/XObject<>/ProcSet[/PDF/Text/ImageB]/ExtGState<>>> endobj 9 0 obj<>stream mH@>%\ZduU>&2NW(n$N?k+Z"SBb#j`jcZ$Q>,/LWfqqS,[od*u/5gh(5Y>X">iZ\o TdH"dZ0'@J=lS$jZD`nXjs-6.?X(T5#Q)ir=aG(h&$[s_Rd. 0/u3K)3bqek.h-NG\?Hue2k)pj*YZ&Xr21qJ;\_+"tQXrSI"8=fXs1@P[%V/R'QIP @*oJ\EUeudiFU?g4GOWc&NEh! 6cWk82m.Q)_5^W9!_"@8h(F%c*eD;To$rq8fM=\IB$fkZD)pEOr6o4ZeSqRoD%)Nl 6/?+g[W:.h2E_6&:gO"l6UY7DDffVP^Z=A_cF=nVh3l6pHT1ab>FD]JEY_:7_a`5q ?GTB *aa>g4d+5aN4UOQ-X--+Ac"V$,+^*0Os_-\>Q-UnZ@C*Un.N;gmRe1maM,qVp`XhJ7bl%'P8tN.b8E8NC*e(:lA+.#Aacjpm)K@:nVLB-l1+3//>#O Create a free account to download. 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