Generation of high-performance Ni-Cr-Mo-based superalloys via γ to DO_(22) superlattice ordered phase transformation upon addition of trace alloying elements

Yuan Liang; Hu Rui; Gao Xiangyu; Li Zhiqiang

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Generation of high-performance Ni-Cr-Mo-based superalloys via γ to DO_(22) superlattice ordered phase transformation upon addition of trace alloying elements

机译：添加微量合金元素后，通过γ至DO_（22）超晶格有序相变生成γ-Ni-Cr-Mo基高性能合金

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The mechanical properties of Ni-Cr-Mo-based alloys with tailored ordered phases were investigated. Introduction of niobium induced the formation of a DO(22)( )superlattice and stabilized this structure by avoiding its precipitation in ternary Ni-Cr-Mo. The tetragonal structure and high thermal stability of DO22 resulted in alloys with higher hardness (13 GPa) and the Young's modulus (225 GPa). Moreover, the sample containing the DO22 phase showed low creep strains and creep strain rates at holding time.

机译：研究了具有定制有序相的Ni-Cr-Mo基合金的力学性能。铌的引入诱导了DO（22）（）超晶格的形成，并通过避免其在三元Ni-Cr-Mo中沉淀而稳定了该结构。 DO22的四方结构和高热稳定性导致合金具有更高的硬度（13 GPa）和杨氏模量（225 GPa）。此外，含有DO22相的样品在保持时表现出较低的蠕变应变和蠕变应变速率。

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来源
《Materials Science and Engineering》 |2018年第19期|38-43|共6页
作者
Yuan Liang; Hu Rui; Gao Xiangyu; Li Zhiqiang;
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作者单位

Shaanxi Univ Sci & Technol, Coll Bioresources Chem & Mat Engn, Xian 710021, Shaanxi, Peoples R China;

Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China;

Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China;

Shaanxi Univ Sci & Technol, Coll Bioresources Chem & Mat Engn, Xian 710021, Shaanxi, Peoples R China;

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正文语种 eng
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关键词
Ni-Cr-Mo-based alloys; Niobium; DO22 superlattice; Creep strain; Thermal stability;

机译：Ni-Cr-Mo基合金铌DO22超晶格蠕变热稳定性;

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1. Precipitation of nanosized DO_(22) superlattice with high thermal stability in an Ni-Cr-W superalloy [J] . Yang Chen, Rui Hu, Hongchao Kou Scripta materialia . 2014,第Null期

机译：Ni-Cr-W高温合金中具有高热稳定性的纳米DO_（22）超晶格的析出
2. Effects of trace alloying elements on the phase transformation behaviors of ordered ω phases in high Nb-TiAl alloys [J] . Song Lin, Lin Junpin, Li Jinshan Materials & design . 2017,第jana期

机译：微量合金元素对高Nb-TiAl合金中有序ω相的相变行为的影响
3. The effects of cobalt elements addition on Ti2Ni phases, thermodynamics parameters, crystal structure and transformation temperature of NiTi shape memory alloys [J] . Kok Mediha, Zardawi Hanaa Shahab Ahmed, Qader Ibrahim Nazem, European Physical Journal Plus . 2019,第5期

机译：添加钴元素对Ti2Ni相的影响，热力学参数，晶体形状记忆合金的晶体结构和变换温度
4. First-Principles Phase Stability Calculations of L1_2, DO_(22) and DO_(23) Structures in Al-TM(=Ti,Zr,Hf)-Zn Systems [C] . G. Ghosh, A. van de Walle, M. Asta International Conference on Solid - Solid Phase Transformations in Inorganic Materials 2005 vol.2; 20050529-0603; Phoenix,AZ(US) . 2005

机译：Al-TM（= Ti，Zr，Hf）-Zn系统中L1_2，DO_（22）和DO_（23）结构的第一性原理相稳定性计算
5. Effect of Alloying Elements Addition to the Corrosion Property of 316L Stainless Steel based Alloys [D] . Rahman, Tahsin. 2018

机译：合金元素除316L不锈钢基合金腐蚀性能的影响
6. Effect of Alloying Elements on the α-γ Phase Transformation in Iron [O] . Jerome Meiser, Herbert M. Urbassek 2019

机译：合金元素对铁中α-γ相变的影响
7. Effect of Ru Addition to Partitioning Behavior of Alloying Elements into .GAMMA. and .GAMMA.' phases of Ni-base Superalloys [O] . Tadaharu Yokokawa, Makoto Osawa, Kenji Nishida, 2004

机译：ru补充与合金元素分配给.gAMA的影响。和.gamma。' Ni碱基超合金的阶段

Generation of high-performance Ni-Cr-Mo-based superalloys via γ to DO_(22) superlattice ordered phase transformation upon addition of trace alloying elements

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