最新刊期
卷 29 ， 期 2 ， 2008
- 摘要：The effect of two-pass defonnation-first pass 60% , 20 s-1second pass 20% , 10 s-1at 850〜1 050 ℃ and different holding time (10 ~ 50 s) between passes on recrystallization of Nb microalloying low carbon bainitic steel (0. 21C, 1. 50Cr, 0. 20Mo, 0. 047Nb) and the interaction between thermal-deformed austenite recrystallization and strain- induced precipitation of Nb( CN) have been studied by Gleeble-2000 thermal simulation test machine. Results showed that with defonnation of steel at 1 000 ~900℃for 10 s, the strain-induced precipitation of Nb (CN) began to delay austenite recrystallization process； and≤10 μmaustenite grain size could be got by two-pass deformation.2|0|0更新时间：2026-01-21
- 摘要：The effect of main element-0.015～0.070C,1.21～2.30Si,0.25～0.33Mn,0.013～0.018P, 0.008~0.017S,0.002～0.210Al in low grade cold rolled non-oriented electrical steel on core loss has been studied by the process of 50 kg vacuum induction furnace steelmaking - 100 mm×25 mm slab forging -2 mm strip hot rolled by 350 four high mill-0.5 mm strip cold rolled by 350 four high mil.Results showed that with increasing carbon,phosphorus, sulphide,manganese content in steel the core loss of cold rolled non-oriented electrical steel obviously increased; with in- creasing silicon content in steel the core loss decreased and as aluminum with nitrogen formed fine AlN particles to prevent grain growing up in steel,the core loss increased with increasing aluminum content in steel.2|0|0更新时间：2026-01-21
- 摘要：Ingredient and morphology of structure of inclusions in liquid alloy steel （0. 42C, 1. 14Cr, 0. 23Mo） under high basicity slag 43 -47CaO - 5 - 10SiO2- 46 -54A1203have been studied by silicon molybdenum electric resistance furnace with MgO crucible. It was obtained that after reaction with high basicity high A12O3slag for 90 min, most of inclusions formed in liquid steel were calcium-magnesium-aluminum silicate inclusions which were easily removed from liquid steel, and the inclusions remained in steel were global particles being available to improve the fatigue resistance of steel products. It was available to fonn calcium-magnesium-aluminum silicate inclusions as the basicity of slag was 9.关键词： Alloy Steel, High Basicity High Al2O3 Slag, Inclusions2|0|0更新时间：2026-01-21
- 摘要：Two non-oriented electrical steels 0.005C-0.42Si and 0.002C-0.98Si were produced by the simulated CSP (compact strip production process):30 kg vacuum induction furnace-50 mm cast slab-2.0~2.3 mm hot rolled plate - 0.5 mm cold rolled sheet process. Results showed that after normalizing at 900 ℃ for 5min,the iron lose P.sso of two e- lectrical steels reduced respectively from original7.01 W/kg and7.34 W/kg to6.49 W/kg and 5.96 W/kg,and after 820～910 ℃ annealing,with increasing annealing temperature the iron lose of cold rolled sheet decreased to 5.15 W/kg.2|0|0更新时间：2026-01-21
- 摘要：The dual phase steel adding Nb(0.19～0.21C,0.7～0.8Si,1.9~2. 1Mn,0.02～0.04Nb)and no adding Nb(0. 17~0. 19C,0.4~0.6Si,1.7~1.9Mn)were melted by using a 25 kg vacuum induction furnace and hot rolled to 3.5 mm plate by two-high mill then cold rolled to1.0 mm and 1.36 mm sheet in laboratory. The cold sheet heated in salt bath furnace to740~820 ℃,slow cooled to 680 ℃ then fast cooled with cooling rate ≥50 ℃/s to 280 ℃ for 240 s,air cooling. Results showed that with increasing heating temperature,the martensite content in ferrite-martensite struc- ture increased;As heating temperature was 820 ℃,the tensile strength of C-Mn-Si dual phase steel no adding Nb was up to1050 MPa,and as adding Nb to furher fine grain of structure, the tensile strength of steel was up to 1200 MPa.2|0|0更新时间：2026-01-21
- 摘要：Structure and texture orientation of 50W600 cold rolled non-orientation electrical steel(0.003～0.008C,0.3Si)during annealing at 700～760 ℃ for 3～360 s,water cooling have been studied by metallography and electron back-scattering spectrum difraction analysis.Results showed that incrensing annealing temperature the rate of recrystaliza-tion and grain size increased; during annealing at 740 ℃,as annealing time increased from 10 s to 360 s,the rate of recrys-tallization increased from 22.5% to 100% and average grain size increased from 3.08 μm to 17.17 μm,and the density of recrystallization texture at α- fibre decreased,as annealing for 15 s the density of {001}〈110〉,{112}〈110〉,{111}〈110〉 and ｛110｝〈110〉was abot 1.5 and the density of ｛111｝〈011〉 and ｛111｝〈112〉at γ-fibre was steadily about 0.25.2|0|0更新时间：2026-01-21
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Water Modelling Test on Interaction between Bottom Injection Gas and Bath for an 180 t Converter#br#
摘要：The effect of converter bottom gas flow rate 0. 55 -0. 75 m3/h, distribution of bottom nozzle with 4 hole symmetry, 2 hole symmetry and 2 hole non- symmetry and blowing location d/D = 0. 1 - 0. 9 (d- diameter of concentric circles of located nozzle ； D- diameter of converter bath) on bath mixing time has been studied by 10 ： 1 water modelling. Results showed that the stirring effect for 4 hole symmetry bottom blowing with d/D = 0. 3 and flow rate 0. 70 m3/h was optimum, the stirring effect for 2 hole symmetry bottom blowing with 0. 60 ~ 0. 70 m3/h and d/D = 0. 3 ~ 0. 5 was optimum, and that for 2 hole non-symmetry was respectively 0. 65 m3/h and d/D = 0. 7.关键词：1801转炉&底吹气体流量&&喷嘴位置&均混时间 水模型5|0|0更新时间：2026-01-21 - 摘要：The effect of austenitizing at 880～900 ℃,and austempering at 280～340 ℃ in salt bath on mechanical properties and wear resistance of as-cast low alloy austenite-bainite steel 38CrMnSi2RE(%:0.35～0.42C,1.5~2.0Si, 1.0~1.5Mn,1.0Cr 、0.2RE)for carterpillar band of tractor has been studied. Test results indicated that the optimum heat treatment process was austenitizing at 880～900 ℃ and austempering at 310 ℃ for 60 min to get the tensile strength of steel ≥1100MPa,elongation =7.9%,HRC hardness value≥44,impact value≥88 J/cm² .The service life of as-cast steel 38CrMnSi2RE carterpillar band was 1.69 time as long as that of steel ZGMn13.2|0|0更新时间：2026-01-21
- 摘要：Test steels were melted by a 25 kg vacuum induction furnace in argon protective atmosphere with charging of austenite heat resistant steel TP347H (0.07C,17.98Cr,10.78Ni,0.70Nb,0.0267N) for super critical pressure boil- er and adding 0~0. 16%B. Results showed that as added ≥0.02%B the austenite grain of test steel obviously coarsened and forging billet of steel cracked as forging at 1200～950 ℃;as added about 0.01%B the austenite heat resistance steel has optimum comprehensive properties i.e. tensile strength of steel at ambient was 615 MPa,the stress-rupture life and e- longation of steel with 120 MPa at 750 ℃ were respectively 230 h and 42%.关键词：奥氏体耐热钢&TP347H&加硼&组织 性能2|0|0更新时间：2026-01-21
- 摘要：The softening behavior of 0.75C-0. 11V microalloy steel isothermal deforming at austenitic area 850～1000 ℃ within interval of passes has been studied by double-pass compression test using Thermecmastor-Z thermal simulation machine.Results indicated that with 30% deformation and 3 s-1deforming rate,as deformation temperature ≥1000 ℃, the relaxation time for performing recrystallization was ≤100 s,and as deformation temperature ≤880 ℃,it was diffcult even extending relaxation time to put forward recrystalization of steel.2|0|0更新时间：2026-01-21
- 摘要：The effect of CaO-Al2O3based refining slag series on T[O] and[S] of Al direct deoxidation gear steel melted by 140 tLD have been studied and analyzed.Results showed that with controling Ca0/Al2O3=2.5 in ladleslag, TI0] decreasedt00.0013%;a CaF,in slag was5% and CaO/Al2O3was 2~3,the ability of slag to absorb oxide inclu- sions could be incrasedl;ns(SIO.)increased to 6%~9%,the change of(SiO2)had minor inlience on abiliy of slag desulphurzation.As(SiO,)was5%~10%,he optimum reining slag ingedient was 60~65 CaO,20~30 Al2035~ 10 MgO and 5 CaF2关键词：Gear&Steel,CaO-Al203 , ;Slag&&Series,LD-LF,Al Deoxidation,Desulphurization2|0|0更新时间：2026-01-21
- 摘要：The corosion resistance of 14 mm plate of steel 09CuPCrNi(0.09C,0.35Mn,0.09P,0.31Cu,0.45Cr, 0.31Ni)and ULCB steel(0.05C,1.61Mn,0.51Cu,0. 17Cr,0.26Ni)was measured by periodic dip corrosion test and the corrosion resistance mechanism was studied by polarizing microscope,X-ray difractometer and energy dispersive spec- trum analyser.Results showed that the corrosion resistance of ULCB steel was better than that of steel 09CuPCrNi and it was found that there were dense inner rust layer consisting of a-Fe00H,B-Fe0OH and Fe3O₄ and loose outer rust layer consisting of a-,y-Fe0OH and Fe3O₄,and the copper and chromium alloy elements enriched at rust layer - steel substrate interface and in rust layer.关键词：超低碳贝氏体钢 耐候钢09CuPCrNi 耐蚀性 锈层2|0|0更新时间：2026-01-21
- 摘要：The thermographic figure of 0. 45 C steel during fatigue testing has been measured by high frequency fatigue testing machine using infrared thennographic sensor. The change of surface temperature of test sample was recorded at three load conditions - Nol- load ratio r = - 1 ； loading frequency 137. 8Hz at 26. 2℃； No2- average tensile stress σm= 224 MPa, loading frequency 141 Hz at 22. 1 ℃ ； No3- σm= 187 MPa, loading frequency 138 Hz at 27 °C. The relation between temperature rise value and service load below fatigue limit with different frequency during non-plastic test was derived and it was obtained that the viscosity coefficient of 0. 45C steel F=1 496.1 Pa·s.关键词：45钢&疲劳试验 常温黏性系数2|0|0更新时间：2026-01-21
- 摘要：The surface nanocrystallization technology of stainless steel such as surface mechanical attrition treatment, shot peering,cross shear rolling and laser surface melting and the bulk nanostructured technology such as mechanical alloy method,inert gas condensation in-situ compression,electrochemical deposition,crystallized from amorphous solid and se- vere plastic deformation method is presented. The corrosion resistance of nanocrystallined stainless steel is affected directly by nanocrystalline structure and the features including uniform structure,free-dislocation and intemal stress are precondi- tions to get excellent corrosion resistance.4|0|0更新时间：2026-01-21
- 摘要：With increasing the strength and toughness of pipeline steel,the corresponding evolution of structure is pearlite-ferrite(X65 grade),acicular ferite(X80 grade),particle bainite-ferrite(X100 grade)and lower bainite(X120 grade).Grain refining and dispersed secondary phase are also important measures to increase the strength and toughness of pipeline steel. In general the structure of pipeline steel is improved by optimizing composition of steel and increasing cool- ing speed of control rolling process.2|0|0更新时间：2026-01-21
- 摘要：The effect of converter end [ C ] and (TiO2) in LF slag on converter end [Ti] and A [Ti] during LF refining process, as well as the effect of [ S] and [ N] on formation of TiN in ultra-low oxygen ([ 0 ] 10 x 10-6) steel 20CrMoH and steel 60Si2MnA have been studied. Results showed that there were two kinds of TiN inclusion: (1) individual TiN and (2) compound TiN with core of CaS； TiN was minor in inclusions in steel 20CrMoH, but TiN accounted fbr 50% - 60% of total inclusions in steel 60Si2MnA； with increasing S content in cast billet the TiN content increased；as [Ti] was (69 -80) x 10-6[N] and [S] respectively decreased from (60 〜74) x 10-6and (30 ~35) x 10-6to (27 - 35) x 10-6and (14 -20) x 10-6the TiN number decreased from 4.4 -6.1 per cm2to 0.4 - 1, 1 per cm2and as [S] W0. 002% , there was no CaS-TiN compound inclusion precipitated in steel.关键词：超低氧&20CrMoH钢&60Si2MnA钢&TiN 工艺控制2|0|0更新时间：2026-01-21
- 摘要：Spring steel 60Si2Mn produced by 80 tLD-LF(VD)-CC flow sheet using aluminum killing during tap- ping and aluminum powder strong diffusion deoxidation after tapping to get total oxygen content(T.0)in billet of steel 10×10-6[S]0.005%,[P]0.010%。Analysis results showed that the main inclusion in steel at end phase of LF and end phase of VD was CaO(MgO)-Al2O3-CaS-SiO2series,the main inclusion in billet was CaO(MgO)-Al203-CaS-SiO2- TiN compound inclusion. As shielding practice was unsuitable led to increasing[N] and containing TiN inclusion in billet.2|0|0更新时间：2026-01-21
- 摘要：Inclusion and transversal impact toughness of 14 mm plate of steel 09CuPTiRE with adding 0.042% RE or feeding CaSi wire-adding 0.042%RE after Al deoxidation have been studied by a 50 kg vacuum induction furnace. Re- sults showed that ysth adding RE treatment, the RE yield was 12% with0.005% RE in steel and RE/S =1.0,the inclu- sions in steel were RE oxysulphide and RE oxide and the average transversal impact energy at 20 ℃ of plate was 112 J; with feeding CaSi wire -adding RE treatment,the RE yield was 31% with 0.013%RE in steel and RE/S = 2.2,the in- clusions in steel were compound of spherical calcium silicate and RE oxysulphide and the average transversal impact energy at 20 ℃ increased to 130 J. The feeding CaSi wire -adding RE process was better than only adding RE process.关键词：耐候钢09CuPTiRE&喂CaSi-加RE处理&夹杂物& 横向冲击韧性2|0|0更新时间：2026-01-21
- 摘要：Based on consumption of electric power, oxygen and carbon powder of Consteel arc furnace, the offset of measuring of metal weight system for Consteel arc furnace due to consumption of refractory of furnace is compensated by es tablished BP artificial neutral network model and Matlab simulation software calculation. Results showed that the absolute value of metal sample data reduced error was ≤0.000 8 t by Levevberg-Marquadt optimum calculation training with BP ar tificial neutral network model.关键词：人工神经网络&Consteel电弧炉&钢水重量 仿真计算2|0|0更新时间：2026-01-21
- 摘要：The Medium plate of heat resisting steel253MA(0.05～0. 10C,20.0~22.0Cr,10.0～12.0Ni,0.14~ 0.20N,0.03～0.08Ce)was produced by arc funace-A0D refining oxidizing period blowing Nz-ladle feeding rare earth (RE)element Ce Wire-concasting-hot roling plate flow sheet at Taiyuan Steel. Results showed that with feeding Ce wire treatment the RE inclusions were spheroidal and dispersed at inside of austenite grain to increase transverse impact tough- ness and stress-rupture strength. The average oxidation rate of plate of steel 253MA at 1000 ℃ was 0.09 mm/a.2|0|0更新时间：2026-01-21
- 摘要：The φ65,φ70 mm products of caterpillar track steel 35MnBM(0.35C,1.25Mn,0.0018B,0.029Al, 0.09V)was produced by 90 t electric arc fumace-LF(VD)refining -240 mm×240 mm billet concasting - continuous rolling process at Beiman Special Steel. With VD treatment and whole period shield casting practice the[N] was ≤78× 10-6,the rating of non- metallic inclusions in steel was 0~2,no hair crack was detected and the grain size, structure and hardenability of steel all met the requirement of standard关键词：EAF-LF(VD)-CC-CR流程链轨节钢35MnBM& 工艺实践2|0|0更新时间：2026-01-21
- 摘要：The cleanliness low carbon aluminum killed steel(0.05～0.06C,0.04Al)was melted by 210 t top and bottom combined blown converter - CAS(composition adjustment by sealed argon bubbling)refining - concasting 230 mm slab flow sheet. With sealed argon bubbling treatment for 27~28 min,the total [0] of liquid steel decreased to(19~ 24)×10-6from(50～60)×10-6before CAS treatment,the total [0] of steel in tundish decreased to(17~20)×10-6and the total oxygen content in cast slab was(11~15)×10-6.The main inclusions in cast slab were ≤3 μm spherical and block shaped Al2O3and combined Al2O3-MnS inclusions,and the maximum content of ≥50 um large inclusions in slab was 5.18 mg/10kg2|0|0更新时间：2026-01-21
- 摘要：With adjusting the rate of cooling water of high pressure spray jet at 3 water tanks(rolling speed 1.48 m/s,inside diameter of spray jet 80 mm,water pressure of Nol water tank before finishing rolling ≤0.3 MPa,No2 tank after finishing rolling≥1.0 MPa and 3B tank ≥1.0 MPa)to control finishing rolling temperature 950 ℃ for φ60 mm CCr15 bearing steel products and self tempering temperature 680 ℃ after water spray,the carbide network rating of prod- ucts was 1.5~2.0 to meet the requirement of standard.2|0|0更新时间：2026-01-21
- 摘要：The radiant tubes of HP40 steel(0.35~0.45C,24~27Cr,34~37Ni,≤0.5Mo)cracked and failed af- ter serveed for 2 years and nine months at ≤980 ℃.The analysis results showed that the g phase precipitation which led to brittleness of materials was main cause for cracking of radiant tubes, the served temperature at cracking region was higher than that at non-cracking region, in cracking region the precipitated g phase was coarse,the amount of σ phase increased, and the plasticity and toughness of this region obviously decreased led to cracking and failure.关键词：HP40耐热钢&离心铸造辐射管&开裂失效& σ-相2|0|0更新时间：2026-01-21
- 摘要：Due to higher alloy content in steel,plenty of alloy element in oxide layer and complexity of oxide struc- ture,there are some trouble in pickling process for S31803 austenite-ferite duplex phase stainless steel(0.03C,22.05Cr, 5.23Ni,3. 10Mo,0. 16N).Iwas obtained by orhogonal test that with pickling solution H2SO4220g/L,NaCl 30 g/L, addition agent 10 g/L at 60 ℃ for average pickling time 57.2 min,after pickling the colour and gloss of plate surface was uniform and up to standard rate was 100%.2|0|0更新时间：2026-01-21
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