|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Improvement of center segregation in high-carbon steel billets using soft reduction显示文摘Center segregation is the main reason for cup fracture of high-carbon wire rod during drawing. Therefore, to continuously produce cast billets with very low center segregation is an important objective. The soft reduction technology is considered to be an effective method to minimize center segregation. To elucidate the effect of soft reduction on the internal quality of high-carbon steel billets, soft reduction was applied with different solid fractions in the core area of billets in a laboratory casting machine. A coupled temperature/displacement finite element model was developed to calculate the solid fraction using the commercial software ABAQUS.Center segregation, center porosity, homogeneity of elements, and equiaxed crystal zone were obviously improved by applying soft reduction, especially when the solid fraction was less than 1.0. The optimal results were obtained when the solid fraction was approximately 0.9. | Wenjun Wang Xionggang Hu Linxin Ning Raimund Bülte Wolfgang Bleck | 2006 | Journal of University of Science and Technology Beijing2006，13，6： | 5 |
| 2 | Simulation research on monomer agglomeration of nonmetallic inclusions in steel with a diffusion limited aggregation model显示文摘The monomer agglomeration of nonmetallic inclusions was simulated with a diffusion limited aggregation (DLA) model of thefractal theory. The simulation study with a random two-dimensional diffusion was carried out. The results indicate that the DLA model canbe used for the simulation of agglomeration behavior of the cluster-type inclusions. The morphology of clusters was observed with SEMand compared with the simulated agglomerates. The modelling procedure of the DLA model is applicable for the agglomeration process.The uncertainty of agglomeration process and the persuasive average agglomerative ratio was analyzed. The factors about the agglomera-tive ratio with the collision path distance and the size of particles or seed were discussed. The adherence of the nonmetallic inclusions onthe dam, the weir and the walls of a tundish, and the absorption of inclusions by stopper or nozzle were also discussed . | Hong Li Linxin Ning Juan Wen Jiongming Zhang Yasushi Sasaki Mitsutaka Hino | 2006 | Journal of University of Science and Technology Beijing2006，13，2： | 4 |
| 3 | Effect of tumor necrosis factor inhibitors on rheumatoid arthritis-induced peripheral neuropathy A cohort study显示文摘In this historical cohort study,236 patients with primary rheumatoid arthritis were treated with the tumor necrosis factor inhibitors,etanercept or infliximab(n = 80),or by conventional methods(n = 156).Results revealed that 11 patients developed varying types of peripheral neuropathy at 1-2 years post-treatment(mean 16 months).The incidence of peripheral neuropathy in the tumor necrosis factor inhibitors treatment group was 8.8%(7/80),which was significantly higher than the conventional treatment group(2.6%;4/156).The relative risk of developing peripheral neuropathy in the tumor necrosis factor inhibitors treatment group was 3.41(95% confidence interval:1.03-11.31).Comparison of the tumor necrosis factor inhibitors revealed that etanercept and infliximab had no significant difference in terms of inducing peripheral neuropathy.Experimental findings indicate that tumor necrosis factor inhibitors may increase the risk of peripheral neuropathy. | Naizhi Wang Yingying Guo Lili Yang Wenyi Fu Yanbing Xu Linxin Hou Shuai Zhao Ning Zhang | 2012 | Neural Regeneration Research2012，7，11： | 2 |
| 4 | Formation of internal cracks in steel billets during soft reduction显示文摘To investigate the formation of internal cracks in steel billets during soft reduction, fully coupled thermo-mechanical finite element models were developed using the commercial software ABAQUS, also casting and soft reduction tests were carried out in a laboratory strand casting machine. With the finite element models, the temperature distribution, the stress and strain states in the bil-let were calculated. The relation between internal cracks and equivalent plastic strain, as well as maximal principal stress was ana-lyzed. The results indicate that tensile stresses can develop in the mushy zone during soft reduction and the equivalent strain nearby the zero ductility temperature (ZDT) increases with decreasing solid fraction. Internal cracks can be initiated when the accumulated strain exceeds the critical strain or the applied tensile stress exceeds the critical fracture stress during solidification. | Wenjun Wang Linxin Ning Raimund Biilte Wolfgang Bleek | 2008 | Journal of University of Science and Technology Beijing2008，15，2： | 1 |
| 5 | Improvement of center segregation in high-carbon steel billets using soft reduetion 显示文摘 | WANG Wenjun HU Xianggang NING Linxin | 2006 | Journal of University of Seienee and Teehnology Beijing2006，13，6： | 1 |
| 6 | Enhanced Degradation of Methyl Orange with CoFe_(2)O_(4)@Zeolite Catalyst as Peroxymonosulfate Activator:Performance and Mechanism显示文摘Reagents:PMS(KHSO_(5)·0.5KHSO_(4)·0.5K_(2)SO_(4),KHSO_(5)),MO,cobalt chloride(CoCl_(2)·6H_(2)O),ferric chloride(FeCl3·6H_(2)O),sodium metasilicate nonahydrate(Na_(2)SiO_(3)·9H_(2)O),methanol(MeOH),tert-butyl alcohol(TBA),p-Benzoquinone(p-BQ),furfuryl alcohol(FFA),sodium carbonate(Na_(2)CO_(3)),sodium sulfate(Na_(2)SO_(4)),sodium chloride(NaCl)and potassium phosphate monobasic(KH_(2)PO_(4))were purchased from Aladdin Reagent Co.,Ltd(Shanghai,China).Coal gangue were collected from Huainan,China.All chemicals above are analytical grade,and deionized water was used throughout all experiments. | WANG Lei LI Jianjun NING Jun HU Tianyu WANG Hongyang ZHANG Zhanqun WU Linxin | 2023 | 无机材料学报2023，38，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员