Elevated Temperature Mechanical Properties of a Directionally Solidified NiAl/Cr(Mo)-Hf Alloy

机译：定向固化的Nial / Cr（Mo）-HF合金的升高的温度力学性能

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The microstructure of directionally solidified (DS) NiAl-28Cr-5Mo-lHf eutectic alloy was investigated by SEM and TEM. The eutectic alloy is composed of NiAl matrix, Cr (Mo) phase and a small amount of Heusler phase. Tensile testing of this alloy was performed from room temperature to 1373K. The brittle-to-ductile transition temperature (BDTT) is dependent on strain rate, with two orders of increase on strain rate resulting in a 100K increase in transition temperature. The observation of fracture surface showed that at temperature above BDTT, the fractograph changes from NiAl cleavage and debonding along NiAl/Cr(Mo) interface boundary to ductile in nature.

机译：通过SEM和TEM研究了定向固化（DS）NiAl-28Cr-5Mo-LHF共晶合金的微观结构。共晶合金由Nial基质，Cr（Mo）相和少量的Heusler阶段组成。将该合金的拉伸试验从室温到1373K进行。脆性 - 延展性过渡温度（BDTT）取决于应变率，在应变速率增加两个增加，导致过渡温度增加100K。裂缝表面的观察表明，在高于BDTT的温度下，沿Nial切割和沿Nial / Cr（Mo）界面边界的剥离变化与延展性的延伸。

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来源
《Asian Pacific Conference Fracture and Strength》|2005年||共5页
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作者
Chunmei Xu; Jianting Guo; Xishan Xie;
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中图分类 TB3-53;
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NiAl/Cr(Mo)-Hf alloy; Microstructure; Brittle-to-ductile transition temperature (BDTT); Fracture morphology;

机译：NIAL / Cr（Mo）-HF合金;微观结构;脆性转变过渡温度（BDTT）;骨折形态;

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1. NiAl-31Cr-2.9Mo-0.1Hf-0.05Ho定向共晶合金的高温氧化行为 [J] . 王振生, 谢亿, 郭建亭, 中国有色金属学报（英文版） . 2012,第007期
2. Elevated Temperature Mechanical Properties of a Directionally Solidified NiAl/Cr(Mo)-Hf Alloy [J] . Chunmei Xu, Jianting Guo, Xishan Xie Key Engineering Materials . 2005,第Pt3期

机译：定向凝固NiAl / Cr（Mo）-Hf合金的高温力学性能
3. Microstructure, brittle-ductile transition temperature and elevated temperature compressive behavior of the directionally solidified NiAl-Cr(Mo)-Hf alloy [J] . C.Y. Cui, J.T. Guo, H.Q. Ye Materials Science and Engineering. A, Structural Materials . 2004,第1a2期

机译：定向凝固NiAl-Cr（Mo）-Hf合金的组织，脆性转变温度和高温压缩行为
4. Effects of Hf additions on high-temperature mechanical properties of a directionally solidified NiAl/Cr(Mo) eutectic alloy [J] . C.Y. Cui, J.T. Guo, H.Q. Ye Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2008,第1a2期

机译：Hf的添加对定向凝固NiAl / Cr（Mo）低共熔合金高温力学性能的影响
5. Elevated Temperature Mechanical Properties of a Directionally Solidified NiAl/Cr(Mo)-Hf Alloy [C] . Chunmei Xu, Jianting Guo, Xishan Xie Asian Pacific Conference Fracture and Strength . 2005

机译：定向固化的Nial / Cr（Mo）-HF合金的升高的温度力学性能
6. The creep deformation of directionally-solidified NiAl-Cr and NiAl-Cr(Mo) eutectics. [D] . Kolluru, Dakshinamurthy V. 1997

机译：定向凝固的NiAl-Cr和NiAl-Cr（Mo）共晶的蠕变变形。
7. Effect of Multi-Directional Forging on the Microstructure and Mechanical Properties of β-Solidifying TiAl Alloy [O] . Ning Cui, Qianqian Wu, Kexiao Bi, 2019

机译：多向锻造对β-凝固TiAl合金组织和力学性能的影响
8. Microstructure and Mechanical Property of the Directionally Solidified NiAl-Cr(Mo)-Hf/Ho Alloy [O] . Ping Han, Yihui Qi, Juan Meng, 2016

机译：定向凝固Nial-Cr（mo）-Hf / Ho合金的组织与力学性能
9. Directionally Solidified NiAl-Based Alloys Studied for Improved Elevated-Temperature Strength and Room-Temperature Fracture Toughness. [R] . Whittenberger, J. Daniel, Raj, Sai V., Locci, Ivan E., 2000

机译：定向凝固Nial基合金研究提高高温强度和室温断裂韧性。

Elevated Temperature Mechanical Properties of a Directionally Solidified NiAl/Cr(Mo)-Hf Alloy

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