开发出衬板用新型轻质Fe-Mn(23.8％)-Al(7.1％)-C(1.02％)钢,测试不同水韧温度处理后实验钢的力学性能.利用X射线衍射分析、显微组织及断口形貌观察、析出物能谱分析,研究不同的水韧温度对新型钢种的组织、力学性能、断裂机理的影响.结果表明:实验用钢的密度6.84 g/cm3,与普通高锰钢相比,密度下降约12.3％;在1050℃保温1h水韧处理后综合性能最佳,其冲击韧性值(V型缺口)ak达到231.3 J/cm2,硬度为205 HB,抗拉强度为809.6 MPa,屈服强度410.9 MPa,断后伸长率为59.6％.断口形貌呈等轴韧窝状,断裂机理为典型微孔聚集型断裂.
参考文献
| [1] | Dong-Woo Suh;Seong-Jun Park;Chang-Seok Oh .Influence of partial replacement of Si by Al on the change of phase fraction during heat treatment of TRIP steels[J].Scripta materialia,2007(12):1097-1100. |
| [2] | Yoo J D;Hwang S W;Park K .Factors influencing the tensile behavior of a Fe-28Mn-9Al-0.8C steel[J].Materials Science and Engineering A,2009,508(1/2):234-240. |
| [3] | 龙彩霞 .Fe-20Mn-2.6Al-2.6Si TRIP/TWIP钢的力学性能和微观组织研究[D].湖南大学,2012. |
| [4] | 代继业,冯宝全,周超梅.高碳高锰耐磨钢热处理工艺研究[J].热处理技术与装备,2013(01):20-21. |
| [5] | 谢袁飞.热处理工艺对新型高锰钢组织和性能的影响[J].湖南文理学院学报（自然科学版）,2009(02):72-73,82. |
| [6] | 闫华,谢敬佩,王文焱,李继文,王爱琴,张东海,王伟.超高锰钢热处理工艺优化及力学性能的提高[J].铸造,2006(10):1067-1070. |
| [7] | Gan Z;He Y;Liu D et al.Hall-Petch effect and strain gradient effect in the torsion of thin gold wires[J].Scripta Materialia,2014,87:41-44. |
| [8] | JINKYUNG KIM;YURI ESTRIN;BRUNO CHARLES DE COOMAN .Application of a Dislocation Density-Based Constitutive Model to Al-Alloyed TWIP Steel[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2013(9):4168-4182. |
| [9] | Hansoo Kim D S A N .Fe-Al-Mn-C lightweight structural alloys:a review on the microstructures and mechanical properties[J].SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS,2013,14(1):14205. |
| [10] | Gutierrez-Urrutia I;Raabe D .High strength and ductile low density austenitic FeMnAlC steels:Simplex and alloys strengthened by nanoscale ordered carbides[J].Materials Science and Technology,2014,30(9):1099-1104. |
| [11] | Grassel O.;Frommeyer G.;Meyer LW.;Kruger L. .High strength Fe-Mn-(Al, Si) TRIP/TWIP steels development - properties - application[J].International Journal of Plasticity,2000(10/11):1391-1409. |
| [12] | I. Gutierrez-Urrutia;D. Raabe .Influence of Al content and precipitation state on the mechanical behavior of austenitic high-Mn low-density steels[J].Scripta materialia,2013(6):343-347. |
| [13] | You R K .Mechanical properties of Fe-30Mn-10Al-1C-1Si alloy[J].Material Science and Engineering,1989,117:141-148. |
| [14] | Kiyohito Ishida H O N S.Phase Equilibria in Fe-Mn-Al-C alloys[J].ISIJ International,1990(30):680-686. |
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