Can electric heating replace contact heating in high temperature test for nickel base single crystal superalloy?
文献类型:期刊论文
作者 | Wang, Zhen; Huang, Xingzhi; Ye X(叶璇); Zhao, Chong; Hu JQ(胡剑桥); Li, Zhigang; Liu XM(刘小明); Li, Xide |
刊名 | JOURNAL OF ALLOYS AND COMPOUNDS |
出版日期 | 2023-06-05 |
卷号 | 945页码:169321 |
ISSN号 | 0925-8388 |
关键词 | Nickel base single crystal superalloy Electric heating High temperature mechanical properties Microstructure analysis Jolue heat effect |
DOI | 10.1016/j.jallcom.2023.169321 |
英文摘要 | Compared with contact heating or environmental heating in high temperature test, electric heating has the advantage that it can realize in situ high temperature heating in SEM. Especially, it can simplify the heating and loading equipment and clearly obtain surface microstructure information of small scale specimens. However, due to the positive feedback characteristic of Joule thermal effect and other electro induced ef fects in materials, such as the influence of electromigration and electric field on dislocation motion, etc. the effectiveness of high temperature mechanical properties of materials obtained under electric heating needs further study. In this paper, the tensile properties of nickel based single crystal superalloy at room tem perature to 950 degrees C were conducted using by electric heating and contact heating modes. The results show that when the heating temperature is below 600 degrees C, the fracture mode and dislocation evolution of nickel base single crystal superalloy do not change significantly under two heating modes; When the heating temperature exceeds 600 degrees C, the macroscopic mechanical properties change gradually, but the elastic modulus has no obvious difference. Through the distribution of two phase elements, it is found that the relevant differences are mainly related to element migration. In addition to the thermal effect caused by electric current, the athermal effect promotes dislocation movement and element migration, which leads to the increasing difference of mechanical properties at high temperature under the two heating modes. These results show that at the temperature exceeds 600 degrees C, the electric heating method is no longer suitable for studying the high temperature mechanical properties of nickel based single crystal superalloy.(c) 2023 Elsevier B.V. All rights reserved. |
分类号 | 一类 |
WOS研究方向 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
语种 | 英语 |
WOS记录号 | WOS:000944302600001 |
资助机构 | National Natural Science Foundation of China [11632010, 11872035, 12272203, 12202450, 12172190] ; National Science and Technology Major Project [J2019 VI 0002 0115] |
其他责任者 | Li, XD (corresponding author), Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China. |
源URL | [http://dspace.imech.ac.cn/handle/311007/91842] |
专题 | 力学研究所_非线性力学国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China 2.Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China 3.Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Zhen,Huang, Xingzhi,Ye X,et al. Can electric heating replace contact heating in high temperature test for nickel base single crystal superalloy?[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2023,945:169321. |
APA | Wang, Zhen.,Huang, Xingzhi.,Ye X.,Zhao, Chong.,Hu JQ.,...&Li, Xide.(2023).Can electric heating replace contact heating in high temperature test for nickel base single crystal superalloy?.JOURNAL OF ALLOYS AND COMPOUNDS,945,169321. |
MLA | Wang, Zhen,et al."Can electric heating replace contact heating in high temperature test for nickel base single crystal superalloy?".JOURNAL OF ALLOYS AND COMPOUNDS 945(2023):169321. |
入库方式: OAI收割
来源:力学研究所
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。