稀土复合变质处理低合金铸钢的组织与性能

21199911ZG35CrMo,,ZG35CrMo,,;RE-Ca,2RE-Ca,YX20,20.53%RE40.95%Si,Si-Ca26.45%Ca57.07%SiRE-Ca,,RESi-Ca,,16001650,,12min-X(EMPA)(SEM),,BE133Amsler,3000r/min,M200,50kg,200r/min,202h,36h-,33.111,ZG35CrMoRE,RE27.5%57.5%,RE,,RERE-CaRE-Ca-Ti,AUTOMOBILETECHNOLOGY&MATERIALRelatedterms:Rare-earthcomplexmodificationLowalloycaststeel:AbstractThroughaddinganamountofRE-CatoZG35CrMocaststeel,thesizeofprimarygrainofthecaststeelcanberefined,theWidmanttatenstructurecanbealmosteliminated,theferritenetworkdistributioncanbeimprovedanddispersivelyandevenlydistributednon-metallicinclusionscanbeobtained,withtheresultthatgoodsyntheticpropertycanbeobtainedandthecrackformingtendencyofplainlowalloycaststeelcanbealmosteliminated.ZG35CrMoRE-Ca,,,,,,22CSiMnPSCrMoRE%ZG35CrMo0.330.340.760.0160.041.500.28ZG35CrMo+0.2%RE0.340.460.760.0150.0041.120.2857.5ZG35CrMo+0.3%RE0.360.320.740.0170.0030.940.2441.7ZG35CrMo+0.4%RE0.350.350.760.0170.0031.030.2527.5ZG35CrMo+0.3%RE+0.05%Si-Ca0.380.390.680.0180.0030.940.2145.0ZG35CrMo+0.3%RE+0.05%Si-Ca+0.02%Ti0.340.370.780.0190.0030.930.2740.01(w%):3.211,,,RERE-Ca,,,,,,231(400)3.3,,,,,,10,22,,,RE-Ca,56%,,,,,2a.e.RE-Cad.0.3%REc.RE-Cab.0.3%RE23199913=4A/P,A,P9.5105m2a.b.RE-Ca3ZG35CrMob/MPa0.2/MPa%%K/Jcm-2HBS900+60072037018.333.328.42130.2%RE900+60077041216.536.531.52170.3%RE900+60074337119.243.538.22070.4%RE900+60068735119.342.034.3187RE-Ca900+60072241218.543.539.9204b.RE-Caa.10001000d.RE-CaSEMc.SEM3:2,Al2O3,MnS;RE-Ca,MnRE(CeLa)Ca,RE-Ca-Al-Mn-O-S,,,,3.43/m2%248.751030.9217.750.2%RE257.431030.7824.710.3%RE677.101030.7483.330.4%RE707.611030.8023.43RE-Ca523.891030.4093.08RE-Ca-Ti2246.021030.6341.5732ZG35CrMo23,RE,RE-Ca,ZG35CrMo,(3)3a,,SEM3c,RE-Ca,,,3b3d,3.544,RE-CaRE-Ca,,,,244ZG35CrMoZG35CrMoRE-Can5.151058.751051-;2-0.2%RE;3-0.3%RE;4-RE-Ca4ZG35CrMo52hg36hgmgZG35CrMo,900+600137.7080137.664243.81.86ZG35CrMo,RE-Ca900+600136.6329136.609323.61.006::,1960,,28,188(116013)mm%()kgkgZG35CrMo15604802.00393.620.7ZG35CrMo,0.2%RE15605161.80345.020.9ZG35CrMo,0.3%RE15606441.75209.818.8ZG35CrMo,0.4%RE15604981.85317.419.4ZG35CrMo,RE-Ca15606801.80138.018.5ZG35CrMo,RE-Ca-Ti15606931.81130.215.8,,3.655,RE-Ca,,ZG35CrMo3.766,RE(0.3%RE),,RERE,,,,,46,ZG35CrMo0.3%RERE-CaRE-Ca-Ti,15601600,RERE,,,1520min,550650,6,ZG35CrMo,4a.ZG35CrMo,0.3%RE0.05%Si-Cab.,,,c.RE-Ca,,,d.ZG35CrMoe.RE-Ca,,,1998-07-06()