Cu-P-Cr-Ni-Mo耐候钢形变诱导铁素体相变

材料热处理学报, 2015, 36(2): 60-65.

Cu-P-Cr-Ni-Mo耐候钢形变诱导铁素体相变

张春玲 ^1, , 杨金凤 ^2, , 孔玉婷 ^3, , 蔡大勇 ^4,

1.燕山大学亚稳材料制备技术与科学重点实验室,河北秦皇岛,066004

2.燕山大学亚稳材料制备技术与科学重点实验室,河北秦皇岛,066004

3.燕山大学亚稳材料制备技术与科学重点实验室,河北秦皇岛,066004

4.燕山大学亚稳材料制备技术与科学重点实验室,河北秦皇岛,066004

基金项目: 国家自然科学基金(51104130) 河北省自然科学基金(E2012203137)

关键词： Gleeble-3500 , 热压缩 , 形变诱导相变 , 铁素体细化

Deformation induced ferrite transformation of Cu-P-Cr-Ni-Mo weathering steel

Keywords： Gleeble-3500 , hot compression , deformation induced transformation , ferrite grain refinement

采用Gleeble-3500热模拟试验机进行单道次等温热压缩试验,分析研究了Cu-P-Cr-Ni-Mo耐候钢在不同温度、不同应变量和不同应变速率下的组织演变和铁素体晶粒细化机制.结果表明,Cu-P-Cr-Ni-Mo耐候钢在875℃变形时铁素体的析出机制为形变诱导相变(DIFT).随应变量增加,铁素体转变量先缓慢增加后急剧增加再缓慢增加的S形曲线特征;铁素体晶粒尺寸随应变量增加而减小,当应变为1.6时,铁素体平均晶粒尺寸最小,大约为3μm.在0.01 ～30 s-1的应变速率下,随应变速率增加,铁素体转变量增加,铁素体晶粒尺寸减小,当应变速率为30 s-1时,铁素体平均晶粒尺寸最小,约为1.9 μm.Cu-P-Cr-Ni-Mo耐候钢在875℃变形时,铁素体晶粒细化机制为形变诱导铁素体相变和铁素体的动态再结晶.

参考文献

[1]	Chunling Zhang;Dayong Cai;Tianchen Zhao .Simulation of hot-rolled dual-phase "weathering steel 09CuPCrNi[J].Materials Characterization,2005(4/5):378-382.
[2]	张春玲,蔡大勇,廖波,赵田臣,樊云昌.09CuPCrNiMoNb耐候钢连续冷却转变及热轧双相化的研究[J].材料热处理学报,2004(04):37-40.
[3]	Isao K .Effect of factors in hot rolling on the properties of a C-Si-Mn structural steel[J].Transactions of the Iron and Steel Institute of Japan,1972,12(03):241-250.
[4]	Priestner R;Hodgson P D .Ferrite grain coarsening during transformation of thermomechanically processed C-Mn-Nb austenite[J].Materials Science and Technology,1992,8(10):849-854.
[5]	Yoshikazu M;Hiroshi Y .Evolution of ultrafine-grained ferrite in hot successive deformation[J].Transactions of the Iron and Steel Institute of Japan,1987,27(06):492-498.
[6]	杨平,傅云义,崔凤娥,孙祖庆.Q235碳素钢应变强化相变的基本特点及影响因素[J].金属学报,2001(06):592-600.
[7]	杨平,傅云义,崔凤娥,孙祖庆.形变温度对Q235碳素钢应变诱导相变的影响[J].金属学报,2001(06):601-608.
[8]	Hong SC.;Lee KS. .Influence of deformation induced ferrite transformation on grain refinement of dual phase steel[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1/2):148-159.
[9]	H. Beladi;G.L. Kelly;A. Shokouhi;P.D. Hodgson .The evolution of ultrafine ferrite formation through dynamic strain-induced transformation[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2004(1/2):343-352.
[10]	Y. D. Huang;W. Y. Yang;Z. Q. Sun .Formation of ultrafine grained ferrite in low carbon steel by heavy deformation in ferrite or dual phase region[J].Journal of Materials Processing Technology,2003(1):19-25.
[11]	P. J. Hurley;P. D. Hodgson .Formation of ultra-fine ferrite in hot rolled strip: Potential mechanisms for grain refinement[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(2):206-214.
[12]	B. Eghbali;A. Abdollah-zadeh .Strain-Induced Transformation in a Low Carbon Microalloyed Steel During Hot Compression Testing[J].Scripta materialia,2006(6):1205-1209.
[13]	Zhongmin YANG;Ruizhen WANG .Formation of Ultra-fine Grain Structure of Plain Low Carbon Steel through Deformation Induced Ferrite Transformation[J].ISIJ International,2003(5):761-766.
[14]	董瀚,孙新军,刘清友,翁宇庆.变形诱导铁素体相变现象与理论[J].钢铁,2003(10):56-67,55.

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