1、中EAEPAbHOE ATEHTCTBOnO TEXHMYECKOMY PEryMPOBAHIO METPONOrHALOHAJbHbIFOCT PCTAHAAPTPOCCMMCKO54566-中EAEPAU2011CTAJbCTaHAapTHble MeToAbI cnbITaHNAn oueHkn rny6nHbi 06e3yrnepoxeHHoro choM3AaHne oanbHoeMocKBaGnCTaHAapTHopM20140CTP54566-2011HAUMOHANbHbIN CTAHAAPT POC C NN C K ON E A E P AU NMCTANbCTaHnapT
2、Hble MeToAbI NcnbITaHNNnA oueHkN rny6nHbl o6e3yrnepoxkeHHoro cnogSteel.Standard test methods for estimating the depth of decarburized layerAaTa BBeneHna-2013-01-011 06nacTb npnMeHeHnAHacToswnn cTaHnapT ycTaHaBnuBaeT MeToAbl oueHkn cpeAHen wnn MaKcnManbHon rny6MHbl o6e3yrne-poxKNBaHNA B 3akaneHHbIX N
3、 He3akaneHHbIX cTanbHblx N3nenNAX.npNBeneHHble MeTonbl NcnbITaHwn conep-KaT MeTOANKN oueHKN rny6NHbl o6e3yrnepoxNBaHna cTanen He3aBNCNMO OT NX XNMNYeckoro CocTaBa,MNKpocTpyKTypbl MaTpNubl N copMbl nonepeyHoro ceueHNA.IpnBeneHbl cnenyiowlne OCHOBHble MeToANKN:a)oT6opoYHble MeTOAbl;b)MMKpockonnyeckne
4、MeTonbl:C)MeTObI N3MepeHNA MNKPOTBepnoCTW;d)MeTonbl XNMNYeckoro aHann3a.yKa3aHHble MeToAbl npeAHa3HayeHbl n o6HapykeHn9 n3MeHeHnn B MNKpoCTpyKType,TBepAocTn wnMconepxkaHwn yrnepona y noBepxHOCTN CTanbHbIX oopa3uoB BcneCTBNe obe3yrnepoxKlBaHna,obycnoBneH-Horo HarpeBoM npn noBblweHHbIX TeMnepatypax Bo
5、 BpeMa ropayen nedopMaunn wnn TepMwyecKono6pa6oTKN.Iny6NHa o6e3yrnepoxKnBaHna onpenengeTca Kak rny6wHa,Ha KoTopoN HaonionaloTCa OnHopO Hag MNK-pocTpyKTypa,TBepocTb wnw conepxkaHne yrnepona,TWnNyHble na BHyTpeHHen uacTn o6pa3ua.B cnyuaax pa3Hornacnn B KayecTBe ap6nTpaHoro MeTona cnenyeT ncnonb3oBaTb
6、6onee TOYHble Me-TOAbI KonnyeCTBeHHoro nnn nMHe Horo aHann3a(4.2.8.5 N 4.2.8.6).MeToAbl XNMnyeckoro aHann3a 06bl4HOnoka3blBalOT 6onee 3HayNTenbHyio rny6wHy o6e3yrnepoxKBaHna,yeM MeTannorpadwyeckne MeTonbl,HO WXnpNMeHeHne orpaHnyeHo onpeneneHHbIMN npocTbIMN opMaMn nonepeyHoro ceyeHna o6pa3ua n HannyN
7、eMHeo6xoAnMoro o6opyAoBaHna.3TN MeToAbl npeAHa3HayeHbl B OCHOBHOM n nccneAoBaTenbcKnx pa6oT.MeTon N3MepeHNa MWKpOTBepnocTn npwroneH n TOYHbIX N3MepeHnn B cnyuae 3akaneHHbIX cTanen cOTHOCNTenbHO OAHOPO HON MWKpOCTpyKTypoN.Pe3ynbTaTbl,nonyyeHHble no nplBeneHHblM MeTonaM NcnblTaHnN,MoryT 6bITb Ncnonb3o
8、BaHbl ng KOH-Tpona kayecTBa MaTepwana,nocTaBngeMoro B COOTBeTCTBNN c cornaweHneM Mexkny noTpe6nTeneM w3ro-TOBNTeneM,n ycTaHoBneHnA npvnycKoB Ha o6pa6oTky pe3aHneM,a Takoke n oueHKN BAMAHNArexHonorwn npoN3BOnCTBa Ha o6e3yrnepoxnBaHne.2 TepMnHbI n onpeneneHn2.1 cpenHaa rny6nHa o6e3yrnepoxnBaHna(average depth of decarburization):CpeAHee 3HaueHneN3 naTn wnn 6onee N3MepeHnn o6wen rny6NHbl o6e3yrnepoxknBaHna.2.2 cpenHaa rny6nHa 3oHbI uWcToro deppnta(average free-ferrite depth):Cpe Hee 3HayeHne N3ngTn wnN 6onee N3MepeHnN rny6NHbl nonHoro o6e3yrnepoxnBaHnaM3 naHne o中unanbHoe
