GOALI/Collaborative Research: Design and Optimization of Powder Processed Ni-Base Superalloys via Grain Boundary Engineering

GOALI/合作研究：通过晶界工程设计和优化粉末加工镍基高温合金

基本信息

批准号：
1334664
负责人：
Michael Sangid
金额：
$ 25.18万
依托单位：
Purdue University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2013
资助国家：
美国
起止时间：
2013-09-01 至 2017-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1334664&HistoricalAwards=false
关键词：
GOALI Collaborative Research Design Optimization

项目摘要

This research is about design of microstructures in superalloy structures that exhibit superior mechanical properties through grain boundary engineering. The approach of this research will be to develop and link process models, capable of producing microstructures with distinct grain boundary characteristics, with behavior models, capable of determining the fatigue life based on the microstructure. Through physics-based approaches, a process map will relate the hot deformation parameters for Nickel-based superalloys to the formation of distinct grain boundaries and microstructures. Microstructures that produce superior properties will be identified through inverse fatigue modeling and fabricated in bulk components. The validation of desired mechanical properties and mechanisms for achieving strengthening at distinct boundaries will be identified through novel in situ loading experiments coupled with strain field measurements and orientation mapping.If successful, the benefits of this research will include the design of microstructures in bulk engineering materials that exhibit superior and tailorable mechanical properties, thus producing an increase in safety, performance, and energy efficiency of components for gas turbine engine applications. More generally, the fundamental science will enable: (a) an identification of the types of microstructures that produce advances in fatigue life, (b) an understanding of the strengthening mechanisms of these distinct grain boundaries, and (c) process maps to achieve such structures. Each of the aforementioned items will enable designs of microstructures in a wide class of materials and components that exhibit superior mechanical behavior. The broader impact of this research is four-fold: (i.) a materials camp for high school science teachers, (ii.) inclusion of women and underrepresented groups, (iii.) open and wide-spread dissemination through HUB technology, and (iv.) industrial interaction including technology transfer.

这项研究是关于通过晶粒边界工程表现出优异机械性能的超合金结构中微观结构的设计。这项研究的方法将是开发和链接过程模型，能够通过行为模型产生具有独特的晶界特征的微观结构，能够根据微观结构来确定疲劳寿命。通过基于物理的方法，过程图将将基于镍的超合金的热变形参数与形成不同的晶界和微观结构的形成。产生优质特性的微观结构将通过反疲劳建模并以大量组件制造来鉴定。通过新颖的原位负载实验以及应变现场测量和取向映射的验证，将确定所需的机械性能和实现不同边界增强的机制的验证。如果成功的好处，这项研究的好处将包括在体积工程材料中设计的微观结构，这些工程材料在体积材料中表现出优势和可抚养的机械性能，从而提高了构成效率，并提高了构成效率，并提高了效能，并构成了涡轮上的效率，并构成了涡轮上的效率，并构成了效率，并构成了效果，并构成了效果，并构成了涡轮涡轮上的效率。更一般而言，基本科学将实现：（a）识别产生疲劳生活进展的微观结构类型，（b）了解这些独特的晶界的加强机制，以及（c）过程图以实现此类结构。上述项目将在广泛的材料和组件中启用微观结构的设计，这些微观结构表现出较高的机械行为。这项研究的更广泛影响是四倍：（i。）高中科学教师的材料营，（ii。）妇女和代表性不足的群体，（iii。）通过枢纽技术开放和广泛的传播，以及（iv。）工业互动，包括技术转移。

项目成果

期刊论文数量（6）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Microstructure based fatigue life prediction framework for polycrystalline nickel-base superalloys with emphasis on the role played by twin boundaries in crack initiation

DOI：
10.1016/j.actamat.2016.01.038
发表时间：
2016-04
期刊：
Acta Materialia
影响因子：
9.4
作者：
Saikumar R. Yeratapally;M. Glavicic;M. Hardy;M. Sangid
通讯作者：
Saikumar R. Yeratapally;M. Glavicic;M. Hardy;M. Sangid

Bayesian uncertainty quantification and propagation for validation of a microstructure sensitive model for prediction of fatigue crack initiation

DOI：
10.1016/j.ress.2017.03.006
发表时间：
2017-08
期刊：
Reliab. Eng. Syst. Saf.
影响因子：
0
作者：
Saikumar R. Yeratapally;M. Glavicic;C. Argyrakis;M. Sangid
通讯作者：
Saikumar R. Yeratapally;M. Glavicic;C. Argyrakis;M. Sangid

Distortion Correction Protocol for Digital Image Correlation after Scanning Electron Microscopy: Emphasis on Long Duration and Ex-Situ Experiments

DOI：
10.1007/s11340-017-0303-1
发表时间：
2017-07
期刊：
Experimental Mechanics
影响因子：
2.4
作者：
A. Mello;T. Book;A. Nicolas;S. E. Otto;C. Gilpin;M. Sangid
通讯作者：
A. Mello;T. Book;A. Nicolas;S. E. Otto;C. Gilpin;M. Sangid

Fatigue strain mapping via digital image correlation for Ni-based superalloys: The role of thermal activation on cube slip

DOI：
10.1016/j.msea.2017.04.002
发表时间：
2017-05
期刊：
Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
影响因子：
6.4
作者：
A. Mello;Andrea Nicolas;M. Sangid
通讯作者：
A. Mello;Andrea Nicolas;M. Sangid

Digital Image Correlation of Heterogeneous Deformation in Polycrystalline Material with Electron Backscatter Diffraction

多晶材料异质变形与电子背散射衍射的数字图像关联