金属学报  2011, Vol. 47 Issue (3): 263-268    DOI: 10.3724/SP.J.1037.2010.00693

论文 本期目录 | 过刊浏览 |

Mn和P在超低碳烘烤硬化钢中的分布形态及对其拉伸行为的影响研究

王华,史文,何燕霖,符仁钰,李麟

上海大学材料科学与工程学院, 上海 200072

STUDY OF Mn AND P SOLUTE DISTRIBUTIONS AND THEIR EFFECT ON THE TENSILE BEHAVIOR IN ULTRA LOW CARBON BAKE HARDENING STEELS

WANG Hua, SHI Wen, HE Yanlin, FU Renyu, LI Lin

College of Materials Science and Engineering, Shanghai University, Shanghai 200072

王华 史文 何燕霖 符仁钰 李麟. Mn和P在超低碳烘烤硬化钢中的分布形态及对其拉伸行为的影响研究[J]. 金属学报, 2011, 47(3): 263-268.
, , , , . STUDY OF Mn AND P SOLUTE DISTRIBUTIONS AND THEIR EFFECT ON THE TENSILE BEHAVIOR IN ULTRA LOW CARBON BAKE HARDENING STEELS[J]. Acta Metall Sin, 2011, 47(3): 263-268.

摘要 参考文献 相关文章 Metrics 全文: PDF(1087 KB)   摘要: 将2种不同成分的烘烤硬化钢(BH-Mn钢和BH-P钢)加热至800 ℃, 保温2 min后水淬;采用3DAP技术、内耗实验及拉伸性能检测分析Mn和P对超低碳BH钢的间隙原子分布及Cottrell气团的影响, 从而得出固溶元素分布对拉伸行为的影响机制. 结果显示,在BH-P钢中, P以明显的偏聚形式存在, 并和C发生共偏聚现象, 从而造成对位错的强烈钉扎,这是导致拉伸过程中BH-P钢产生明显屈服平台的主要原因; 在BH-Mn钢中, 由于固溶Mn几乎不产生偏聚, 而且固溶C的偏聚也很少, 因此BH-Mn钢的强度低于BH-P钢,塑性则优于后者; P和C的共同偏聚及其对位错的强烈钉扎能够影响Snoek-Ke-Koster内耗,使Snoek-Ke-Koster峰消失. 关键词 ： 超低碳烘烤硬化钢,  三维原子探针(3DAP),  固溶元素分布,  屈服平台,  内耗     Abstract：With the increasing requirement of vehicle weight reduction and energy conservation from automobile industry, the investigation and development of high strength steel sheet has been stressed extensively. Bake hardening steel, as a new kind of automotive steel, exhibits low strength and good formability  before drawing, after which increases obviously in the yield strength during baking process, and is then widely used in the outer plate of modern cars. Mn and P are often added to sheet steel to increase the strength, and their distributions have significant effect on drawability, bake hardening property and surface quality of bake hardening steels. In this paper, the distributions of Mn and P and their effect on tensile behavior in bake hardening steels were studied. For investigation, two kinds of bake hardening steels (BH–Mn and BH–P steels) were heated to 800  ℃, held for 2 min and cooled by water quenching. Three dimensional atom probe (3DAP) technique, internal friction experiments and tensile tests were carried out to analysis the effect of Mn and P distribution patterns on the interstitial atom distribution and Cottrell atmosphere in the matrix, so as to obtain the influence of solute istributions on tensile behavior. The results indicate that P segregates mainly in bake hardening steel, and part of P segregates together with C, which strongly pin the dislocations and is the main reason that induces the yield point elongation during tensile process. In BH–Mn steel, Mn hardly segregates in the matrix and C segregates very little, so the strength of BH–Mn steel is lower than that of BH–P steel, whereas the plasticity is better than BH–P steel. The segregation of P together with C and its pinning of dislocations will influence Snoek–Ke–Koster internal friction, and mkes the disappearance of Snoek–Ke–Koster peak. Key words： ultra lw carbon bake hardening steel    three dimensional atom proe (3DAP)    slute distribution    yield point elongation    internal friction 收稿日期: 2010-12-23      ZTFLH:  TG 142.1   基金资助: 国家自然科学基金项目50934011和50971137以及国家重点基础研究发展计划项目2010CB630802资助 作者简介: 王华, 女, 汉族, 1983年生, 博士生 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 王华 史文 何燕霖 FU Renyu 李麟 44.8K 链接本文: https://www.ams.org.cn/CN/10.3724/SP.J.1037.2010.00693      或      https://www.ams.org.cn/CN/Y2011/V47/I3/263 [1] Jeong Y S, Matsubae–Yokoyama K, Kubo H, Pak J J, Nagasaka T. Resour, Cnserv Recyclig, 2009; 53: 479 [2] Zhang J X, Xiong X M. Acta Metall Sin, 2003; 39: 1127 (张进修, 熊小敏. 金属学报, 2003; 39: 1127) [3] Waleed Al S, John G S, Kip F, David K M. Metall Mater Trans, 2006; 37A: 206 [4] Ruiz D, Rivera–Tovar J L, Segers D, Vandenberghe R E, Houbaert Y. Mater Sci Eng, 2006; A442: 462 [5] Ji J W, Zhao Z Q, He L D, Geng D Q. Acta Phys Sin, 1985; 34: 1620 (戢景文, 赵赠祺, 贺礼端, 耿殿奇. 物理学报, 1985; 34: 1620) [6] Zhang Z, Lin Q, Yu Z. Mater Sci Eng, 2000; A291: 22 [7] Wu J, Song S H, Weng L Q, Xi T H, Yuan Z X. Mater Charact, 2008; 59: 261 [8] Wang K,Wang M, i H, Xu T. Mater Sci ng, 2008; A485: 347 [9] Smith J F, Southworth H N. Surf Technol, 1984; 21: 205 [10] Perhacova J, Grman D, Svoboda M, Patscheider J, Vyrostkova A, Janovc J. Mater Lett, 2001; 47: 44 [11] Pereloma E V, Timokhina I B, Miller M K, Hodgson P D. Acta Mater, 2007; 55: 2587 [12] Liu Q D, Chu Y L, Wang Z M, Liu W Q, Zhou B X. Acta Metall Sin, 2008; 44: 1281 (刘庆冬, 褚于良, 王泽民, 刘文庆, 周邦新. 金属学报, 2008; 44: 1281) [13] Zheng L, Xu T D, Deng Q, Si H. Acta Metall Sin, 2007; 43: 893 (郑磊, 徐庭栋, 邓群, 司红. 金属学报, 2007; 43: 893) [14] Miller M K. Science, 1999; 286: 2285 [15] Craven A J, MacKenzie M, Cerezo A, Godfrey T, Clifton P H. Mater Sci Technol, 2008; 24: 641 [16] M´athis K, Rauch E F. Mater Sci Eng, 2007; A462: 248 [17] Liu Q D, Liu W Q, Wang Z M, Zhou B X. Acta Metall Sin, 2008; 44: 786 (刘庆冬, 刘文庆, 王泽民, 周邦新. 金属学报, 2008; 44: 786) [18] Wert C, Marx I. Acta Metall, 1953; 1: 113 [19] Weller M. Mater Sci Eng, 2006; A442: 21 [20] Juan J S. In: Schaller R, Fantozzi T, Gremaud G eds., Mechanical Spectroscopy Q−1 2001, Uetikon–Zuerich, Switzerland: Trans Tech Publications Ltd, 2001: 32 [21] Bagramov R, Mari D, Benoit W. Philos Mag, 2001; 81A: 2797 [22] Tkalcec I, Mari D. Defect Diffus Forum, 2002; 203–205: 253 [23] Song X L, Yuan Z X, Jia J, Wang D, Fan L X. Scr Mater, 2010; 63: 446 [24] Zhao J Z, De A K, De Cooman B C. Mater Lett, 2000; 44: 374 [25] Cottrell A H, Bilby B A. Proc Phys Soc, 1949; 62A: 49 [26] Cowan J R, Evans H E, Jones R B, Bowen P. Acta Mater, 1998; 46: 6565 [27] Song S H, Wu J, Weng L Q, Yuan Z X. Mater Sci Eng, 2008; A497: 524 [1] 李晓林, 崔阳, 肖宝亮, 张大伟, 金钊, 程政. V-N微合金钢在线快速感应回火工艺中V(C, N)析出强化机制[J]. 金属学报, 2018, 54(10): 1368-1376. [2] 李维娟, 张恒毅, 付豪, 张建平, 戚翔宇. 低碳钢烘烤硬化机制的内耗研究[J]. 金属学报, 2015, 51(4): 385-392. [3] 谢尘, 吴晓春, 闵娜, 沈贇靓. 3DAP研究高碳高合金钢深冷处理过程的C偏聚行为[J]. 金属学报, 2015, 51(3): 325-332. [4] 李小龙, 郭正洪, 戎咏华, 吴海洋, 姚圣法. 基于屈服平台理论开发的600 MPa级高强塑性螺纹钢的研究*[J]. 金属学报, 2014, 50(4): 439-446. [5] 刘文庆 朱晓勇 钟柳明 王晓姣 刘庆冬. 微合金钢中第二相临界转变尺寸的研究[J]. 金属学报, 2011, 47(8): 1094-1098. [6] 迟成宇 董建新 刘文庆 谢锡善. 3DAP研究Super304H耐热不锈钢中富Cu相的析出行为[J]. 金属学报, 2010, 46(9): 1141-1146. [7] 董亚伟 康国政 刘宇杰 王弘 程晓娟. 室温下20钢高周次单轴棘轮行为的实验研究[J]. 金属学报, 2009, 45(7): 826-829. [8] 吴杰 崔洪芝 迟静 姚树玉 韩福生. B2 Fe-Al合金有序化过程中的内耗峰[J]. 金属学报, 2009, 45(4): 396-399. [9] 刘庆冬 彭剑超 刘文庆 周邦新. 回火马氏体中合金碳化物的3D原子探针表征 II. 长大[J]. 金属学报, 2009, 45(11): 1288-1296. [10] 刘庆冬 褚于良 彭剑超 刘文庆 周邦新. 回火马氏体中合金碳化物的3D原子探针表征 III. 粗化[J]. 金属学报, 2009, 45(11): 1297-1302. [11] 刘庆冬 刘文庆 王泽民 周邦新. 回火马氏体中合金碳化物的3D原子探针表征 I. 形核[J]. 金属学报, 2009, 45(11): 1281-1287. [12] 张建; 李秀艳; 赵明久; 戎利建 . 晶界相对Fe-Ni-Cr奥氏体合金氢脆的影响[J]. 金属学报, 2008, 44(9): 1095-1098 . [13] 孙蔚; 韩福生; 吴杰 . Fe-Al合金中与Al反位置原子弛豫有关的内耗峰[J]. 金属学报, 2007, 43(3): 311-314 . [14] 汪宏斌; 王晓宇; 张骥华; 徐祖耀 . 纳米晶Fe-25%Ni合金块材的内耗研究[J]. 金属学报, 2004, 40(5): 523-526 . [15] 余黎明; 李晶晶; 马岳 . 热老化对ZN－1阻尼材料内耗特性的影响[J]. 金属学报, 2003, 39(11): 1205-1208 . Viewed Full text Abstract Cited   Shared      Discussed