Az Egri Ho Si Minh Tanárképző Főiskola Tud. Közleményei. 1979. (Acta Academiae Paedagogicae Agriensis : Nova series ; Tom. 15)

III. TANULMÁNYOK A TERMÉSZETTUDOMÁNYOK KÖRÉBŐL - Dr. Szűcs László: A nikkel hatásának termodinamikai és metallurgiai vizsgálata a vasban oldott kén aktivitására

16. Chmélár I.-Búíek Z.-Hliníny J.: Sbornik vedeckych praci Vysoké skoly bánské v Ostrave Rocnik XIV. rok 1968, cislo 3, rada hutnická, clánek 451. 17. Szűcs László: Az acélfürdőben oldott nikkel kéntelenítésre gyakorolt hatásának fizikai-kémiai vizsgálata. Kandidátusi értekezés, 1971. Miskolc. TepMOAHHaMMHecKMÜ w jMeTajuiyprMHecKHH anajiH3 BJIHHHIIJI HHKCJIH Ha aKTMBHOCTb Cepbl, BXOflHIHeíi B COCTaB CTajlM A'P Jlacjio ClOH Bonpoc BJIMflHHÍI HMKCJIH Ha aKTMBHOCTb CCpbl b CJiyMae HMKeJICrblX CTajICÍi B MCT3JIjiyprMHCCKoíi jinTcpaType He pcmeH eflMHoniacHo m b naum ahm. Eoju.lumhctbo nccjie^OBaTCjieíí, no MHenmo aBTopa craTbw, tipothbopchmbo BbicKasbiBaeTca no Bonpocy o bjihHHHH HMKejlfl. MHOrWe hccjie^OBaTCJIH CMMTaiOT, MTO HHKeJlb yMeHbUiaCT aKTMBHOCTb cepbl. Kai< noKa3ajiM MCCJieflOBanHH aBTopa HMKejib OTpmjaTCJibHO bjimhct He TOJibKO na peaKHHio oöeccepHBaHMH ct?.jw, ho m Ha npoqecc OKcnAaijMM cepw m3 craJiM n co/;eücTRyeT TOMy, hto crajib npwHMMacT cepy m3 ra30B0íi cpe^bi, BKjnonaiomCM cepHMCTbiíi ra:í. TpyAHOCTH oöeccepuBaHMH hmkc^cbi.ix CTajieít, bo3mo>kho, Moryr oöbacuhtca eme n apyrmmh ctiaktopamm. b03m0>kh0 m to, mto npMCyTCTBMe HMKejIH 113MeHHeT MeX3HM3M peaKi;uM oQeccepMBamiH CTajieíí. ON THE THERMODYNAMIC AND METALLURGICAL EXAMINATION OF THE ACTION OF NICKEL, THE ACTIVITY OF SULPHUR DISSOLVED IN IRON BY LÁSZLÓ SZÜCS Special literature on metallurgy has not yet decided unanimously the question of the influence of nickel on the activity of sulphur in the case of nickel steel. The opinions of the majority of research workers on the action of nickel - as it has been pointed out in the present article - are contradictory. Many of them are of the opinion that nickel diminishes the activity of sulphur. The research of the author has proved that nickel exerts a negative influence on the reaction of the desulphurization of steel as well as on the process of the oxidization of sulphur from steel and favours the absorption of sulphur by steel from gas-phase containing sulphur-dioxide. The difficulty of the desulphurization of steel containing nickel, however, may be due to some other factors. The mechanism of the reaction of the desulphurization may be changed by the presence of nickel as well. 380