[1]曹东甲,塔娜,杜勇,等.基于相场模拟对镍基高温合金制备工艺优化及设计[J].中国材料进展,2015,(1):050-63.[doi:10.7502/j.issn.1674-3962.2015.01.05]
　CAO Dongjia,TA Na,DU Yong,et al.Optimization and design of preparation process for Ni-based superalloys based on the phase-field simulation[J].MATERIALS CHINA,2015,(1):050-63.[doi:10.7502/j.issn.1674-3962.2015.01.05]
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基于相场模拟对镍基高温合金制备工艺优化及设计()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2015年第1期
页码:
050-63
栏目:
特约研究论文
出版日期:
2015-01-31

文章信息/Info

Title:
Optimization and design of preparation process for Ni-based superalloys based on the phase-field simulation
作者:
曹东甲; 塔娜; 杜勇; 张利军
中南大学 粉末冶金国家重点实验室，湖南 长沙 410083
Author(s):
CAO Dongjia;  TA Na;  DU Yong;  ZHANG Lijun
State Key Lab of Powder Metallurgy, Central South University, Changsha, 410083, China
关键词:
镍基高温合金; 微结构; 相场模拟; CALPHAD; 热处理机制; 材料设计
DOI:
10.7502/j.issn.1674-3962.2015.01.05
文献标志码:
A
摘要:
材料制备过程中微结构演变的定量描述是材料设计的核心。近年来基于精准热力学和扩散动力学数据库的相场模拟是对微结构演变进行定量描述一种行之有效的方法。作为航空发动机和燃气涡轮叶片等高温零部件的主要用材，高性能镍基高温合金制备工艺的优化及设计一直是各国材料学者研究的热点和难点。本文首先概述了相场方法及其最新研究进展，以及相场法与CALPHAD（CALculation of PHAse Diagram）数据库耦合技术的发展，随后详细介绍了国内外有关镍基高温合金凝固、固溶及时效过程微结构演变定量相场模拟的报道，以及当前用于建立镍基高温合金微结构与力学性能关系的可行方法。之后给出了两个基于定量相场模拟对镍基高温合金固溶及时效热处理机制进行优化及设计的实例，进一步证明了相场模拟在高性能镍基高温合金设计中的重要作用。最后，本文指出了对镍基高温合金制备过程微结构演变进行定量相场模拟以及后续工艺优化和设计中存在的主要问题及发展趋势。
Abstract:
Quantitative description of the microstructure during materials preparation is the key to material design. In recent years, the phase-field simulation coupling with the CALPHAD (CALculation of PHAse Diagram) thermodynamic and atomic mobility databases has become an effective way to quantitatively simulate the microstructure evolution. The Ni-based superalloys are widely used as the main candidates for the high-temperature parts in aircraft engines, gas turbine blades etc. and the optimization and design of their preparation processes has been always a research hotspot and challenge for materials researchers all over the world. The present paper starts from the outline of the phase-field method and its latest development, as well as the development of coupling technique between the phase-field method and CALPHAD databases. After that, the reports on quantitative phase-field simulation of microstructure evolution in Ni-based superalloys during solidification, solution and aging heat treatment available in the literature are described in detail, followed by presenting the feasible ways to establish the relationship between the microstructure and mechanical properties of Ni-based superalloys. Subsequently, two examples for demonstrating the optimization and design of the solution and aging heat treatments of Ni-based superalloys based on the quantitative phase-field simulation are given, further indicating the importance of the phase-field simulation in the design of high-performance Ni-based superalloys. Finally, the major problems and the development trends for the quantitative phase-field simulation of microstructure evolution and its subsequent processes optimization and design in Ni-based superalloys are also pointed out.
更新日期/Last Update: 2014-12-31