金属学报  1992, Vol. 28 Issue (8): 25-32

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含Nb低碳钢的热变形行为和金属塑性形变中流变应力的预测

高维林;白光润;周志敏;栾瑰馥;龙春满

东北工学院;东北工学院;东北工学院;东北工学院;鞍山钢铁公司

HOT DEFORMATION BEHAVIOUR OF Nb-BEARING LOW CARBON STEEL AND PREDICTION OF FLOW STRESS FOR METALS DURING PLASTIC DEFORMATION

GAO Weilin; BAI Guangrun; ZHOU Zhimin; LUAN Guifu (Northeast University of Technology; Shenyang); LONG Chunman (Anshan Iron and Steel Company)

高维林;白光润;周志敏;栾瑰馥;龙春满. 含Nb低碳钢的热变形行为和金属塑性形变中流变应力的预测[J]. 金属学报, 1992, 28(8): 25-32.
, , , , . HOT DEFORMATION BEHAVIOUR OF Nb-BEARING LOW CARBON STEEL AND PREDICTION OF FLOW STRESS FOR METALS DURING PLASTIC DEFORMATION[J]. Acta Metall Sin, 1992, 28(8): 25-32.

摘要 参考文献 相关文章 Metrics 全文: PDF(619 KB)   摘要: 利用Gleeble 1500模拟试验机对含Nb低碳钢的热变形行为进行了实验研究,对热变形稳态流变应力和发生动态再结晶时的峰值流变应力与变形条件的关系进行了回归分析,阐述了由于形变诱发Nb(C,N)化合物沉淀对形变激活能的影响,在对金属塑性变形过程中位错增值,螺型位错交滑移回复和刃型位错攀移回复过程分析的基础上,建立了可预测动态回复和动态再结晶同时发生情况下的流变应力理论模型,并对不同变形条件下的流变应力进行了预测,预测结果与实验结果相当吻合。 关键词 ： 流变应力,  激活能,  动态回复,  动态再结晶     Abstract：Experimental investigation was carried out of hot deformation behaviour of Nb-bearing low carbon steel 14MnNb by Gleeble 1500 simulator. Regressive analysis was made of the relationship between deformation conditions and steady flow stress during hot deformation and peak flow stress correponding to dynamic recrystallization. Clarification was also described for the influence of strain-induced Nb (C, N) precipitation on the activation energy of formation. On the basis of analyzing the processes of dislocation multiplication and recoveries from cross-slip of screw dislocation and from climb of edge dislocation during plastic deformation of metals, the theoretical model to predict flow stress under the conditions of dynamic recovery and recrystallization occurred simultaneously was developed. The prediction about flow stress, in practice, under various deformation comditions by the model seems in fair agreement with the experimantal results. Key words： flow stress    activation energy    dynamic recovery    dynamic recrystallization 收稿日期: 1992-08-18      基金资助:国家教委博士点基金 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 高维林 白光润 周志敏 栾瑰馥 龙春满 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1992/V28/I8/25 1 Sellars C M, Davies G J. Hot Working and Forming Processes. London: The Metals Society, 1980 2 Krauss G. Deformation Processing and Structure. Metals Park, Ohio: ASM, 1984 3 Tamura I. Thermec 1988． Tokyo: Iron Steel Institute Japan, 1988 4 Frost H J, Ashby M F. Defomation Mechanism Maps. Oxford: Pergamon, 1982 5 Roberts W. In: Krauss G ed., Deformation Processing and Structure, Metals Park, Ohio: ASM, 1984: 109 6 McQueen H J. J Met, 1968; 20(4) : 31 7 Roberts W. In: McQueen H J, Bailon J-P, Dickson J I, Jonas J J, Akben M G eds., Strength of Metals and Alloys (ICSMA 7) , Vol.Ⅲ, Oxford: Pergamon, 1986: 1859 8 Kocks U F. Trans ASME, Ser. H: J Eng Mater Technol, 1976; 98: 76 9 Kocks U F, Argon A S, Ashby M F. Prog Mater Sci, 1975; 19: 10 Trozera T A, Sherby D D, Dorn J E. Trans ASM, 1957; 49: 173- [1] 李景仁, 谢东升, 张栋栋, 谢红波, 潘虎成, 任玉平, 秦高梧. 新型低合金化高强Mg-0.2Ce-0.2Ca合金挤压过程中的组织演变机理[J]. 金属学报, 2023, 59(8): 1087-1096. [2] 李福林, 付锐, 白云瑞, 孟令超, 谭海兵, 钟燕, 田伟, 杜金辉, 田志凌. 初始晶粒尺寸和强化相对GH4096高温合金热变形行为和再结晶的影响[J]. 金属学报, 2023, 59(7): 855-870. [3] 娄峰, 刘轲, 刘金学, 董含武, 李淑波, 杜文博. 轧制态Mg-xZn-0.5Er合金板材组织及室温成形性能[J]. 金属学报, 2023, 59(11): 1439-1447. [4] 吴彩虹, 冯迪, 臧千昊, 范诗春, 张豪, 李胤樹. 喷射成形AlSiCuMg合金的热变形组织演变及再结晶行为[J]. 金属学报, 2022, 58(7): 932-942. [5] 任少飞, 张健杨, 张新房, 孙明月, 徐斌, 崔传勇. 新型Ni-Co基高温合金塑性变形连接中界面组织演化及愈合机制[J]. 金属学报, 2022, 58(2): 129-140. [6] 姜伟宁, 武晓龙, 杨平, 顾新福, 解清阁. 热轧硅钢表层动态再结晶区形成规律及剪切织构特征[J]. 金属学报, 2022, 58(12): 1545-1556. [7] 倪珂, 杨银辉, 曹建春, 王刘行, 刘泽辉, 钱昊. 18.7Cr-1.0Ni-5.8Mn-0.2N节Ni型双相不锈钢的大变形热压缩软化行为[J]. 金属学报, 2021, 57(2): 224-236. [8] 赵嫚嫚, 秦森, 冯捷, 代永娟, 国栋. Al、Ni对1Cr9Al(1~3)Ni(1~7)WVNbB钢热变形行为的影响[J]. 金属学报, 2020, 56(7): 960-968. [9] 陈文雄, 胡宝佳, 贾春妮, 郑成武, 李殿中. 热变形后Ni-30%Fe模型合金中奥氏体的亚动态软化行为[J]. 金属学报, 2020, 56(6): 874-884. [10] 张阳, 邵建波, 陈韬, 刘楚明, 陈志永. Mg-5.6Gd-0.8Zn合金多向锻造过程中的变形机制及动态再结晶[J]. 金属学报, 2020, 56(5): 723-735. [11] 武华健, 程仁山, 李景仁, 谢东升, 宋锴, 潘虎成, 秦高梧. Al含量对Mg-Sn-Ca合金微观组织与力学性能的影响[J]. 金属学报, 2020, 56(10): 1423-1432. [12] 张勇, 李鑫旭, 韦康, 万志鹏, 贾崇林, 王涛, 李钊, 孙宇, 梁红艳. 850 ℃涡轮盘用新型变形高温合金GH4975挤压棒材热变形规律研究[J]. 金属学报, 2020, 56(10): 1401-1410. [13] 李旭,杨庆波,樊祥泽,呙永林,林林,张志清. 变形参数对2195 Al-Li合金动态再结晶的影响[J]. 金属学报, 2019, 55(6): 709-719. [14] 邓亚辉,杨银辉,曹建春,钱昊. 23Cr-2.2Ni-6.3Mn-0.26N节Ni型双相不锈钢动态再结晶行为研究[J]. 金属学报, 2019, 55(4): 445-456. [15] 万志鹏, 王涛, 孙宇, 胡连喜, 李钊, 李佩桓, 张勇. GH4720Li合金热变形过程动态软化机制[J]. 金属学报, 2019, 55(2): 213-222. Viewed Full text Abstract Cited   Shared      Discussed