期刊文献+

淬火、配分温度及时间对Q&P钢组织及力学性能的影响 被引量:11

Effects of quenching,partitioning temperature and time on microstructure and mechanical properties of Q&P steel
原文传递
导出
摘要 采用扫描电镜、透射电镜等试验手段研究不同Q&P(Quenching and Partitioning)工艺对钢的微观组织和力学性能的影响。结果表明:完全奥氏体化并采用Q&P工艺处理后Q&P钢的抗拉强度为1399~1670 MPa,断后伸长率为13.92%~17.24%;显微组织为马氏体和残留奥氏体,其中马氏体主要为板条状及少量分布在原奥氏体晶界处的块状。经EBSD统计分析:块状马氏体尺寸大小为1~3μm,是在第二次淬火过程中形成的新生马氏体;在相同淬火温度下,抗拉强度随配分时间的延长都有不同程度的下降,适中的淬火温度(210℃)加上适中的配分时间(60 s)可获得最佳伸长率。 Effects of quenching and partitioning parameters on microstructure evolution and mechanical properties of steel were studied by means of seanning elec.tron microscope (SEM) and transmission electron microscope(TEM). The resuhs show that the tensile strength of Q&P steel reaches 1399-1670 MPa and the total elongation is 13.92% -17.24% after austenitization and Q&P process. Tin, nlicrostructure is consisted of martensite and retained austenite. The majority of martensite is lath martensite and a small amount of block martensite located at austenite boundary. Based on EBSD analysis, the block martensite is generated during the second quenching process and 1-3 μm in size. The tensile strength decreases with the increasing of partitioning time. The optimal elongation can be obtained by proper cnmbination of partitioning temperature at 210 ℃ and partitioning time of 60 s.
出处 《金属热处理》 CAS CSCD 北大核心 2017年第12期106-110,共5页 Heat Treatment of Metals
基金 山东省自然科学基金(ZR2016EMP05)
关键词 Q&P钢 残留奥氏体 配分 新生马氏体 Q&P steel retained austenite partitioning fresh martensite
  • 相关文献

参考文献1

二级参考文献27

  • 1Speer J G, De Moor E, Matlock D K. Ultra-high strength sheet steel property developments [C]// Proceedings of the Fourth Baosteel Biennial Academic Conference, ed. by Xu L, Baosteel, Shanghai,2010 : 131 - 135.
  • 2Matlock D K, Speer J G. Design considerations for the next generation of advanced high strength sheet steels [ C ] //Proc. of the 3rd International Conference on Advanced Structural Steels, ed. by Lee H C. Ed. Seoul, Korea : Korean Institute of Metals and Materials, 2006:774 - 781.
  • 3Maflock D K, Speer J G. Third Generation of AHSS: Mierostructure design concepts [ C ] //Microstructure and Texture in Steels and Other Materials. Haldar A, Suwas S Bhattacharjee D. Eds. London: Springer, 2009 : 185 - 205.
  • 4Merwin M J. low-carbon manganese TRIP steels [ J ]. Mater Sci. Forum,2007 ;539 - 543:4327 - 4332.
  • 5Proceedings of 1^st International Conference on High Manganese Steels, HMnS2011, Yonsei University, Seoul, Korea, 2011.
  • 6Gibbs P J, De Moor E, Merwin M J, Clausen B, Speer J G and Matlock D K, Austenite stability effects on tensile behavior of manganese-enriched-austenite transformation-induced plasticity steel [ J ]. Metallurgical and Materials Transactions A, 2011 ; 42 (12) :3691 -3702.
  • 7De Moor E,Matlock D K, Speer J G, et al. Austenite Stabilization through manganese enrichment [J]. Scripta Materialia,2011,64 : 185 - 188.
  • 8Gibbs P J. Design considerations for the third generation advanced high strength steel [ D ]. CO: Colorado School of Mines, 2012.
  • 9Lee S, Lee S J, De Cooman B C. Austenite stability of ultrafine-grained transformation-induced plasticity steel with Mn partitioning[ J ]. Scripta Materialia, 2011,65 :225 -228.
  • 10Cao W Q, Wang C, Shi J, et al. Microstructure and mechanical properties of Fe - 0. 2C - 5Mn steel processed by ART-annealing [ J ]. Materials Science and Engineering A,2011,528 :6661 -6666.

共引文献10

同被引文献90

引证文献11

二级引证文献48

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部