Effect of cyclic oxidation on the tensile behavior of directionally solidified CM-247LC Ni-based superalloy at 870℃

Md Zafir Alam; D.Chatterjee; B. Venkataraman; Vijay K. Varma; Dipak K. Das

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Effect of cyclic oxidation on the tensile behavior of directionally solidified CM-247LC Ni-based superalloy at 870℃

机译：870℃循环氧化对定向凝固CM-247LC Ni基高温合金拉伸性能的影响

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The effect of cyclic oxidation exposure at 1100 ℃ in air on the tensile properties of directionally solidified Ni-based superalloy CM-247LC has been studied. The residual machining stresses present in the tensile samples induced the formation of a recrystallization zone at the surface during oxidation exposure. Additionally, a γ' precipitate-free zone also formed at the surface of the tensile specimens. The tensile properties of the alloy, including YS, UTS and ductility, were greatly degraded because of the oxidation exposure. The deterioration in the properties can be ascribed to the combined effect of the above mentioned surface damages and the microstructural degradation in terms of the coarsening of primary γ' precipitates of the substrate during the high temperature exposure.

机译：研究了空气中1100℃下循环氧化暴露对定向凝固Ni基高温合金CM-247LC拉伸性能的影响。拉伸样品中存在的残余机械加工应力在氧化暴露过程中引起表面重结晶区的形成。另外，在拉伸试样的表面上也形成了无γ'沉淀的区域。由于暴露于氧化，合金的拉伸性能（包括YS，UTS和延展性）大大降低。在高温暴露期间，就基材的主要γ'沉淀物的粗化而言，上述表面损伤和微观结构退化的综合作用可归因于性能的劣化。

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来源
《Materials Science and Engineering》 |2010年第23期|p.6211-6218|共8页
作者
Md Zafir Alam; D.Chatterjee; B. Venkataraman; Vijay K. Varma; Dipak K. Das;
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作者单位

Defence Metallurgical Research Laboratory, Kanchanbagh, Hyderabad 500058, India;

rnDefence Metallurgical Research Laboratory, Kanchanbagh, Hyderabad 500058, India;

rnDefence Metallurgical Research Laboratory, Kanchanbagh, Hyderabad 500058, India;

rnRegional Centre for Military Airworthiness (F & F-FOL), CEMILAC, Bangalore 560093, India;

rnDefence Metallurgical Research Laboratory, Kanchanbagh, Hyderabad 500058, India;

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正文语种 eng
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关键词
oxidation; tensile properties; superalloy; recrystallization; precipitate-free zone;

机译：氧化拉伸性能高温合金重结晶无沉淀区;

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1. Creep behavior of Pt-aluminide (PtAl) coated directionally solidified Ni-based superalloy CM-247LC after thermal exposure [J] . Md. Zafir Alam, D.V.V. Satyanarayana, D. Chatterjee, Materials Science and Engineering . 2015,第auga12期

机译：热暴露后Pt铝化物（PtAl）涂覆的定向凝固Ni基高温合金CM-247LC的蠕变行为
2. High temperature creep properties of directionally solidified CM-247LC Ni-based superalloy [J] . Mau-Sheng Chiou, Sheng-Rui Jian, An-Chou Yeh, Materials Science and Engineering . 2016,第FEBa8期

机译：定向凝固的CM-247LC Ni基高温合金的高温蠕变性能
3. Effect of prior cyclic oxidation on the creep behavior of directionally solidified (DS) CM-247LC alloy [J] . Md Zafir Alam, D.V.V. Satyanarayana, D.Chatterjee, Materials Science and Engineering . 2012,第Feba28期

机译：先验循环氧化对定向凝固（DS）CM-247LC合金蠕变行为的影响
4. Effect of Prior Cyclic Oxidation on the Creep Behavior of Bare and Pt-Aluminide Coated Directionally Solidified CM-247LC Alloy [C] . Zafir Alam, D.V.V. Satyanarayana, D. Chatterjee International Conference on Creep, Fatigue and Creep-Fatigue Interaction . 2013

机译：现有循环氧化对裸硼酸盐涂层定向固化CM-247LC合金的蠕变行为的影响
5. The relationship of microstructure to fracture and corrosion behavior of a directionally solidified superalloy. [D] . Trexler, Matthew D. 2007

机译：定向凝固高温合金的显微组织与断裂和腐蚀行为的关系。
6. Microstructural Investigations of Ni-Based Superalloys by Directional Solidification Quenching Technique [O] . Tobias Wittenzellner, Shieren Sumarli, Helge Schaar, 2020

机译：通过定向凝固淬火技术的Ni基超合金的微观结构研究
7. Effect of Prior Cyclic Oxidation on the Creep Behavior of Bare and Pt-Aluminide Coated Directionally Solidified CM-247LC Alloy [O] . Alam Md Zafir, Satyanarayana D.V.V., Chatterjee D., 2013

机译：预先循环氧化对裸铝和铂铝化物定向凝固的CM-247LC合金蠕变行为的影响
8. Effect of tensile mean stress on fatigue behavior of single-crystal and directionally solidified superalloys [R] . Kalluri, Sreeramesh, Mcgaw, Michael A. 1990

机译：拉伸平均应力对单晶定向凝固高温合金疲劳性能的影响

Effect of cyclic oxidation on the tensile behavior of directionally solidified CM-247LC Ni-based superalloy at 870℃

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