通过对不同方式冷却的热连轧GH4169合金进行直接时效处理、蠕变性能测试和组织形貌观察,研究了冷却方式对热连轧GH4169合金的组织结构与蠕变行为的影响.结果表明；“水冷”HCR-GH4169合金经直接时效后,其组织由细小晶粒组成,大量细小γ′,γ″相在晶内弥散析出,可提高合金蠕变抗力,而“空冷”热连轧合金晶粒尺寸较大,且在基体中析出的γ′,γ″两相的数量明显减少；在实验条件下,“水冷”热连轧合金经直接时效后具有较好的蠕变抗力和较长的蠕变寿命；热连轧及直接时效合金在蠕变期间的变形机制是位错在基体中发生单、双取向滑移和孪晶变形,在蠕变后期,裂纹在晶界处萌生和扩展,并发生沿晶断裂是合金的蠕变断裂机制.
参考文献
| [1] | Fritz Klocke;Vladimir Backer;Hagen Wegner;Bjorn Feldhaus;Hans-Uwe Baron;Roland Hessert .Influence of process and geometry parameters on the surface layer state after roller burnishing of IN718[J].Production Engineering: Research and Development,2009(4/5):391-399. |
| [2] | Z.W. HUANG;H.Y. LI;M. PREUSS .Inertia Friction Welding Dissimilar Nickel-Based Superalloys Alloy 720Li to IN718[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2007(7):1608-1620. |
| [3] | Cheng, M.;Zhang, H.Y.;Zhang, S.H. .Microstructure evolution of delta-processed IN718 during holding period after hot deformation[J].Journal of Materials Science,2012(1):251-256. |
| [4] | 王岩,林琳,邵文柱,甄良,张新梅.固溶处理对GH4169合金组织与性能的影响[J].材料热处理学报,2007(z1):176-179. |
| [5] | 刘芳,孙文儒,杨树林,李战,郭守仁,杨洪才,胡壮麒.Al含量对GH4169镍基合金组织及其稳定性的影响[J].金属学报,2008(07):791-798. |
| [6] | G. Appa Rao;Mahendra Kumara;M. Srinivas .Effect of standard heat treatment on the microstructure and mechanical properties of hot isostatically pressed superalloy inconel 718[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):114-125. |
| [7] | 李淼泉,姚晓燕,罗皎,林莺莺,苏少博,王海荣.镍基高温合金GH4169高温变形流动应力模型研究[J].金属学报,2007(09):937-942. |
| [8] | 孔永华,李龙,陈国胜,朱世根.不同热处理工艺对GH4169合金组织及性能的影响[J].稀有金属材料与工程,2010(z1):472-475. |
| [9] | K.V.U. PRAVEEN;VAKIL SINGH .Effect of Cold Rolling on the Coffin-Manson Relationship in Low-Cycle Fatigue of Superalloy IN718[J].Metallurgical and materials transactions. A, physical metallurgy and materials science,2008(1):79-86. |
| [10] | 张会,张昌明,姚泽坤,郭从盛,冯小明.等温锻用GH4169合金的组织性能研究[J].锻压技术,2008(05):116-119. |
| [11] | TIAN S G;ZHAO Z G;LIU Y et al.Creep behaviors of DA casting and rolling GH4169 superalloy[J].Rare Metal Materials and Engineering,2009,38(Suppl 3):20-23. |
| [12] | Xian-feng MA,Zheng DUAN,Hui-ji SHI,Ryosuke MURAI,Eiichi YANAGISAWA.Fatigue and fracture behavior of nickel-based superalloy Inconel 718 up to the very high cycle regime[J].浙江大学学报（英文版）（A辑：应用物理和工程）,2010(10):727-737. |
| [13] | 陈国胜,王庆增,张玩良,李伟,王资兴,刘丰军,王世普.GH4169合金细晶棒材的连轧工艺及其组织与性能[J].材料工程,2010(04):18-21. |
| [14] | 田素贵,赵忠刚,陈礼清,于慧臣,刘洋,包宪宇,刘湘华.直接时效处理对热连轧GH4169合金蠕变行为的影响[J].航空材料学报,2010(05):14-18. |
| [15] | 谢锡善,董建新,付书红,张麦仓.γ"和γ'相强化的Ni-Fe基高温合金GH4169的研究与发展[J].金属学报,2010(11):1289-1302. |
| [16] | TIAN S G;LI Z R;ZHAO Z G et al.Influence of deformation level on microstructure and creep behaviors of GH4169 alloy[J].Materials Science and Engineering A,2012,550:235-242. |
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