Acta Metall Sin  1988, Vol. 24 Issue (4): 314-321    DOI:

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MATHEMATICAL MODELS OF NITROGEN CONCENTRATION PROFILE OF ION NITRIDED LAYERS AND COMPUTER SIMULATION

XIA Lifang;YAN Mufu Harbin Institute of TechnologyDivision of Metal Materials and Heat treatment; Harbin Institute of Technology; Harbin

XIA Lifang;YAN Mufu Harbin Institute of TechnologyDivision of Metal Materials and Heat treatment; Harbin Institute of Technology; Harbin. MATHEMATICAL MODELS OF NITROGEN CONCENTRATION PROFILE OF ION NITRIDED LAYERS AND COMPUTER SIMULATION. Acta Metall Sin, 1988, 24(4): 314-321.

Abstract References Related Articles Recommended Metrics Download:  PDF(591KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The mathematical models of the kinetics of the layer growth at differ-ent ion nitriding conditions of armco iron, steels 45, 40Cr, 42CrMo and 38CrMoAlhave been established. Based on these models the expression of nitrogen concentra-tion profile of ion nitrided layers have been deduced with profile simulating method.They are C_β=C_(min)~ε+P~4/ξ_(10)(ξ_1-x)+P~5/ξ_(10)~2(ξ_1-x)~2 C_γ~′=C_(min)~γ′+P_1/ξ_(21)(ξ_2-x)+P_2/ξ_(21)~2(ξ_2-x)~2 C_α=C_(min)~α+C_(33)/ξ_(32)~3(ξ_3-x)~3Using these models, the kinetics of layer growth and the nitrogen concentration pro-file of ion nitrided layers were simulated on Apple-Ⅱ computer. Results show thatthe simulated curves coincide quite well with the experimental data. Key words:  computer simulation      ion nitriding      nitrogen concentration profile      Received:  18 April 1988      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1988/V24/I4/314 1 杜树芳,黄辉.金属热处理,1980;(1) :7--11 2 曾根匠,纲沢荣二,山中久彦.热处理,1984;24(6) :316--322 3 Marcinik A. In: Proc 4th Int Congress on Heat Treatment of Materials, Vol. I, Berlin: International Federation for the Heat Treatment of Materials, 1985: 591--609 4 山中久彦著,李贻锦,朱雅年译.离子渗氮,北京:机械工业出版社,1985;4,71 5 阎牧夫.离子渗氮工艺过程的数学模型与计算机仿真,哈尔滨工业大学硕士学位论文,1987 6 崔明根,邓中兴.数学模型化处理,哈尔滨工业大学出版社,1985:1--13 7 上海师范大学数学系.回归分析及其实验设计,上海教育出版社,1978:141--19 [1] ;. STUDY OF 3D QUASI--STATIONARY GRAIN SIZE DISTRIBUTION DERIVED FROM MACPHERSON—SROLOVITZ TOPOLOGY--RELATED GRAIN GROWTH RATE EQUATION[J]. 金属学报, 2008, 44(7): 769-774 . [2] zhang lin. 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[11] SHAO Jun;XU Hua;CHENG Ailan;KLEIN M. L. University of Pennsylvania; Philadelphia; U. S. A; State University of New York; U. S. A.; University of Pennsylvania; Philadelphia; U. S. A.. CONSTANT PRESSURE MOLECULAR DYNAMICS SIMULATION OF MOLTEN LiF-BeF_2 SYSTEM[J]. 金属学报, 1993, 29(1): 59-64. [12] YAN Wen Xi'an Institute of Technology Correspondent associate professor;xi'an Institute of Technology. SYMMETRICAL SUPERLATTICE INTRINSJC STACKING FAULTS IN DEFORMEDPOLYCRYSTALLINE Ni_3 Al AND THEIR FORMATION MECHANISM[J]. 金属学报, 1991, 27(5): 8-13. [13] WANG Xi;ZHOU Jiankun;CHEN Youshan;LIU Xianghuai;ZOU Shichang Ion Beam Laboratory; Shanghai Institute of Metallurgy; Academia Sinica. COMPUTER SIMULATION OF ION BEAM ENHANCED DEPOSITION OF TiN FILMS[J]. 金属学报, 1991, 27(3): 136-141. [14] WEI Chao;QIAN Rengen;LIN Shi;XIAO Jimei University of Science and Technology Beijing Department of mathematics and mechanics; University of Science and Technology Beijing; Beijing 100083. COMPUTER SIMULATION OF EFFECT OF ORIENTATION DIFFERENCE ON MECHANICAL PROPERTIES OF BICRYSTALLINE SPECIMENS[J]. 金属学报, 1990, 26(4): 18-21. [15] LIN Dongliang;CHEN Da T. L. Lin Shanghai Jiaotong University professor;Department of Materials Science;Shanghai Jiaotong University;Shanghai 200030. COMPUTER SIMULATION OF GRAIN BOUNDARY STRUCTURES IN Ni_3 Al[J]. 金属学报, 1990, 26(3): 10-17. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed