Development of A New Type of Functional NiAl-base Alloys

新型功能镍铝基合金的研制

• 批准号: 06555198
• 负责人: ISHIDA Kiyohito
• 金额: $ 11.14万
• 依托单位: TOHOKU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06555198/
• 关键词: NICKEL ALUMINIDES; INTERMETALLIC COMPOUNDS; HIGH-TEMPERATURE MATERIALS; SHAPE MEMORY MATERIALS; THERMOMECHANICAL TREATMENTS; MICROSTRUCTURE CONTROL; B2 PHASE; DIFFUSION; 耐熱、耐酸化材料; マルテンサイト

The beta phase of nickel and cobalt aluminides with B2-type (C_sC1) structure have the potential to serve as a new type of materials with multi-functional properties such as high temperature strength, good oxidation resistance, shape memory, high damping capacity, stc. However the lack of ductility limits their application as the functional materials. The aim of this project is to develop a new type of beta base multi-functional materials improved ductility by microstructural control.1.Thermodynamic AnalysisThe phase equilibria of the Ni-rich portion in the Ni-Al-Mn, Ni-Al-Co and Ni-Al-Fe systems have been experimentally determined, and thermodynamic analysis on basis of the experimental data have been done.2.High Temperature MaterialsBy means of microstructural control due to the information of the thermodynamic analysis, ductile gamma'(L1_2)+beta two-phase alloy which has both excellent oxidation resistance and high temperature strength has been developed by the conventional fabrication method combined with a thermomechanical heat treatment.3.Shape Memory and Damping MaterialsMartensitic transformation temperatures in the beta phase B2*L1_0 (Ms) of the Ni-Al-X (X : Ti, V,Cr, Mn, Fe, Co, Cu, etc.) systems were determined by DSC.It was clarified that adding Mn, Fe and Co are useful to increase the Ms temperature. By means of these data of Ms and phase equilibria, ductile gamma(Al)+beta two-phase shape memory alloys which operate at high temperatures between 100 and 600ﾟC have been developed in the Ni-Al-Fe-Mn quaternary system. These two-phase shape memory alloys show not only high damping capacity, but also higher yield strength than the other damping materials.

具有B2型(C_sC1)结构的镍钴铝化物β相具有作为新型材料的潜力，具有高温强度、良好的抗氧化性、形状记忆、高阻尼能力、stc等多功能特性。然而，缺乏延展性限制了它们作为功能材料的应用。本项目的目的是开发一种通过微观结构控制提高延展性的新型β基多功能材料。1.热力学分析通过实验确定了Ni-Al-Mn、Ni-Al-Co和Ni-Al-Fe体系中富镍部分的相平衡，并根据实验数据进行了热力学分析。2.高温材料通过基于微观结构控制的信息 通过热力学分析，采用常规制造方法结合热机械热处理，开发出了兼具优异抗氧化性和高温强度的韧性γ'(L1_2)+β两相合金。3.形状记忆与阻尼材料Ni-Al-X(X：Ti、V、Cr、Mn、Fe、 通过DSC测定了Co、Cu等)体系。结果表明，添加Mn、Fe和Co有助于提高Ms温度。利用Ms和相平衡的这些数据，在Ni-Al-Fe-Mn四元系中开发出了可在100至600°C高温下工作的延性γ(Al)+β两相形状记忆合金。这些两相形状记忆合金不仅表现出高阻尼能力，而且比其他阻尼材料具有更高的屈服强度。

项目成果

K.Ishida: "Development of Ductile NiAl(B2)-Base Alloys." Symp.Proc.on Mechanical Properties and Phase Transformations of Multi-phase Intermetallic Alloys,TMS. 77-90 (1995)

K.Ishida：“延展性 NiAl(B2) 基合金的开发。”

R. Kainuma: "Martensitic transformations in NiMuAl β phase alloys" Metall. Mater. Trans. A. 27A. 4153-4162 (1996)

R. Kainuma：“NiMuAl β 相合金中的马氏体转变”Metall。27A。

R.Kainuma: "Partition of Alloying Elements between γ(L1_2),η(D0_<24>), β(B2)and H(L2_1)phases in the Ni-Al-Ti Base systems." Journal de Chimie Physique,. (発表予定). (1996)

R. Kainuma：“Ni-Al-Ti 基础系统中 γ(L1_2)、η(D0_<24>)、β(B2) 和 H(L2_1) 相之间合金元素的分配。” （预定的演示）（1996）。

R.Kainuma, K.Oikawa and K.Ishida: "Shape Memory Effect in the Ductile beta+gamma Ni-Al-Fe Two-Phase Alloys." Proc.Int.Symp.Exh.on Shape Memory Materials, Beijing, The Non-ferrous Metals Society of China. 464-468 (1994)

R.Kainuma、K.Oikawa 和 K.Ishida：“延性 β γ Ni-Al-Fe 两相合金中的形状记忆效应”。

R.Kainuma: "Phase Equilibria and Microstructural Control in the Ni-Co-Al System" Intermetallics,. (発表予定). (1996)

R.Kainuma：“Ni-Co-Al 系统中的相平衡和微观结构控制”金属间化合物，（待发表）。