Please wait a minute...
金属学报  2010, Vol. 46 Issue (2): 155-160    DOI: 10.3724/SP.J.1037.2009.00431
  论文 本期目录 | 过刊浏览 |
基于过冷奥氏体动态相变的热轧TRIP钢组织控制  I.原始奥氏体晶粒尺寸
尹云洋1;3;杨王玥1;李龙飞2; 孙祖庆2;王西涛2
1. 北京科技大学材料科学与工程学院; 北京 100083
2. 北京科技大学新金属材料国家重点实验室; 北京 100083
3. 武汉钢铁(集团)公司研究院; 武汉 430080
MICROSTRUCTURE CONTROL OF HOT ROLLED TRIP STEEL BASED ON DYNAMIC TRANSFORMATION OF UNDERCOOLED AUSTENITE
I. Prior Austenite Grain Size
YIN Yunyang 1;3; YANG Wangyue 1; LI Longfei 2; SUN Zuqing 2; WANG Xitao 2
1. School of Materials Science and Engineering; University of Science & Technology Beijing; Beijing 100083
2. State Key Laboratory for Advanced Metals and Materials; University of Science & Technology Beijing; Beijing 100083
3. Research and Development Center; Wuhan Iron and Steel (Group) Corp.; Wuhan 430080
引用本文:

尹云洋 杨王玥 李龙飞 孙祖庆 王西涛. 基于过冷奥氏体动态相变的热轧TRIP钢组织控制  I.原始奥氏体晶粒尺寸[J]. 金属学报, 2010, 46(2): 155-160.
, , , . MICROSTRUCTURE CONTROL OF HOT ROLLED TRIP STEEL BASED ON DYNAMIC TRANSFORMATION OF UNDERCOOLED AUSTENITE
I. Prior Austenite Grain Size[J]. Acta Metall Sin, 2010, 46(2): 155-160.

全文: PDF(2169 KB)  
摘要: 

通过热模拟压缩实验, 研究了铁素体相变前的奥氏体晶粒尺寸对基于动态相变的热轧C-Mn-Al-Si系TRIP钢组织及力学性能的影响. 结果表明, 减小原始奥氏体晶粒尺寸, 可促进动态相变时的铁素体相变动力学, 有利于铁素体、贝氏体及残余奥氏体等相分布更为均匀, 获得的贝氏体束及贝氏铁素体尺寸较小, 残余奥氏体的体积分数及C含量均较高, 细小的颗粒状残余奥氏体数量较多且弥散分布, 因此可获得具有较高强度和优良塑性的热轧TRIP钢.

关键词 热轧TRIP钢 过冷奥氏体动态相变 原始奥氏体晶粒尺寸 显微组织 力学性能    
Abstract

Low–alloy multiphase transformation–induced plasticity (TRIP) steels offer excellent mechanical properties combining high–strength levels with a well ductility. This results from the complex synergy between different phases, i.e., ferrite, baintie and retained austenite in them. An in–depth understanding of the novel hot rolled TRIP processing based on dynamic transformation of undercooled austenite (DTUA) is required to study the microstructure evolution under different treatment conditions. The parameters determining the stability of the metastable austenite and mechanical property of TRIP steel were revived and investigated experimentally, with a special attention paid to the effect of prior austenite grain size and cooling rate after DTUA on its microstructure and mechanical property. The results show that the kinetics of ferrite during DTUA is accelerated when the prior austenite grain size is small. In addition, reducing the grain size of austenite, the distribution of ferrite, bainite and retained austenite becomes more uniform. Moreover, the size of bainite packets and bainitic ferrite becomes smaller, the volume fraction and carbon content of retained austenite higher, and the finer granular retained austenite vast and distributed uniformly, which result in the investigated steel having a higher strength and ductility.

Key wordshot rolled TRIP teel    dnamic transformation of unercooled austenite    prior austenite grain size    microstructure    mechanical property
收稿日期: 2009-06-29     
基金资助:

国家高技术研究发展计划项目2007AA03Z501和高等学校博士学科点专项科研基金项目200800081014资助

作者简介: 尹云洋, 男, 1976年生, 博士生

[1] Yin Y Y, Yang W Y, Li L F, Sun Z Q, Wang X T. Acta Metall Sin, 2008; 44: 86
(尹云洋, 杨王玥,李龙飞, 孙祖庆, 王西涛. 金属学报, 2008; 44: 686)
[2] Yin Y Y, Yang W Y, Li L F, Sun Z Q, Wang X T. Acta Metall Sin, 2008; 44: 1292
(尹云洋, 杨王玥, 李龙飞, 孙祖庆, 王西涛. 金属学报, 2008; 44: 1292)
[3] Yin Y Y, Yang W Y, Li L F, Sun Z Q, Wang X T. Acta Metall Sin, 2008; 44: 1299
(尹云洋, 杨王玥,李龙飞, 孙祖庆, 王西涛. 金属学报, 2008; 44: 1299)
[4] Yang W Y, Hu A M, Sun Z Q. Acta Metall Sin, 2000;36: 1055
(杨王玥,胡安民, 孙祖庆. 金属学报, 2000; 36: 1055)
[5] Heladi H, Kelly G L, Shokouhi A, Hodgson P D. Mater Sci Eng, 2004; A367: 152
[6] Heladi H, Kelly G L, Shokouhi A, Hodgson P D. Mater Sci Eng, 2004; A371: 343
[7] Dong H, Sun X J. Curr Opin Solid State & Mater Sci, 2005; 9: 269
[8] Yin Y Y, Yang W Y, Li L F, Sun Z Q, Wang X T. Acta Metall Sin, 2010; 46: 161
(尹云洋, 杨王玥,李龙飞, 孙祖庆, 王西涛. 金属学报, 2010; 46: 161) [9] Sun Z Q, Yang W Y, Qi J J, Hu A M. Mater Sci Eng, 2002; A334: 201
[10] Miller R L. Trans ASM, 1964; 57: 892
[11] Beladi H, Kelly G L, Shokouhi A, Hodgson P D. Mater Sci Eng, 2004; A367: 152
[12] Eghbali B, Abdollah–Zadeh A. Scr Mater, 2006; 54: 1205
[13] Ehrhardt B, Gerber T, Schaumann T W. In: Baker M A ed., Int Conf on Advanced High Strength Sheet for Automotive Applications Proceedings, Winter Park, Colorado, 2004: 47
[14] Nakagaito T, Shimizu T, Inazumi T, Hosoya Y, Furukimi O, Sakata K. In: Baker M A ed., Int Conf on Advanced High Strength Sheet for Automotive Applications Proceedings, Winter Park, Colorado, 2004: 231
[15] Haidemenopoulos G N, Grujicic M, Olson G B, Cohen M. J Alloys Compd, 1995; 220: 142
[16] Jacques P J, Furnemont Q, Lani F, Pardoen T, Delannay F. Acta Mater, 2007; 55: 3681
[17] Muransky O, Sittner P, Zrnik J, Oliver E C. Acta Mater, 2008; 6: 3367
[18] Tvergaard V. Int J Fract, 1982; 18: 237
[19] Olson G B. J Phys IV, 1996; 6: 407

[1] 张雷雷, 陈晶阳, 汤鑫, 肖程波, 张明军, 杨卿. K439B铸造高温合金800℃长期时效组织与性能演变[J]. 金属学报, 2023, 59(9): 1253-1264.
[2] 卢楠楠, 郭以沫, 杨树林, 梁静静, 周亦胄, 孙晓峰, 李金国. 激光增材修复单晶高温合金的热裂纹形成机制[J]. 金属学报, 2023, 59(9): 1243-1252.
[3] 宫声凯, 刘原, 耿粒伦, 茹毅, 赵文月, 裴延玲, 李树索. 涂层/高温合金界面行为及调控研究进展[J]. 金属学报, 2023, 59(9): 1097-1108.
[4] 张健, 王莉, 谢光, 王栋, 申健, 卢玉章, 黄亚奇, 李亚微. 镍基单晶高温合金的研发进展[J]. 金属学报, 2023, 59(9): 1109-1124.
[5] 郑亮, 张强, 李周, 张国庆. /降氧过程对高温合金粉末表面特性和合金性能的影响:粉末存储到脱气处理[J]. 金属学报, 2023, 59(9): 1265-1278.
[6] 丁桦, 张宇, 蔡明晖, 唐正友. 奥氏体基Fe-Mn-Al-C轻质钢的研究进展[J]. 金属学报, 2023, 59(8): 1027-1041.
[7] 陈礼清, 李兴, 赵阳, 王帅, 冯阳. 结构功能一体化高锰减振钢研究发展概况[J]. 金属学报, 2023, 59(8): 1015-1026.
[8] 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.
[9] 孙蓉蓉, 姚美意, 王皓瑜, 张文怀, 胡丽娟, 仇云龙, 林晓冬, 谢耀平, 杨健, 董建新, 成国光. Fe22Cr5Al3Mo-xY合金在模拟LOCA下的高温蒸汽氧化行为[J]. 金属学报, 2023, 59(7): 915-925.
[10] 袁江淮, 王振玉, 马冠水, 周广学, 程晓英, 汪爱英. Cr2AlC涂层相结构演变对力学性能的影响[J]. 金属学报, 2023, 59(7): 961-968.
[11] 吴东江, 刘德华, 张子傲, 张逸伦, 牛方勇, 马广义. 电弧增材制造2024铝合金的微观组织与力学性能[J]. 金属学报, 2023, 59(6): 767-776.
[12] 刘满平, 薛周磊, 彭振, 陈昱林, 丁立鹏, 贾志宏. 后时效对超细晶6061铝合金微观结构与力学性能的影响[J]. 金属学报, 2023, 59(5): 657-667.
[13] 张东阳, 张钧, 李述军, 任德春, 马英杰, 杨锐. 热处理对选区激光熔化Ti55531合金多孔材料力学性能的影响[J]. 金属学报, 2023, 59(5): 647-656.
[14] 侯娟, 代斌斌, 闵师领, 刘慧, 蒋梦蕾, 杨帆. 尺寸设计对选区激光熔化304L不锈钢显微组织与性能的影响[J]. 金属学报, 2023, 59(5): 623-635.
[15] 李殿中, 王培. 金属材料的组织定制[J]. 金属学报, 2023, 59(4): 447-456.