Effect of Cooling Rate on Microstructure and Properties of Heat-treated Fe(3)Al Intermetallics

doi:10.4028/www.scientific.net/AMR.189-193.3891

IR > 国际教育学院

	Effect of Cooling Rate on Microstructure and Properties of Heat-treated Fe(3)Al Intermetallics
	Li, Yamin; Liu, Hongjun; Hao, Yuan
	2011
会议名称	MANUFACTURING PROCESS TECHNOLOGY, PTS 1-5
会议录名称	MANUFACTURING PROCESS TECHNOLOGY, PTS 1-5
卷号	189-193
页码	3891-3894
出版地	LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND
出版者	TRANS TECH PUBLICATIONS LTD
摘要	The casting Fe(3)Al intermetallics were solidified in sodium silicate sand mould and permanent mould respectively to get different cooling rates. After heat treatment (1000 degrees C/15 h homogenizing annealing + furnace cooling followed by 600 degrees C/1 h tempering + oil quenching), the microstructure and properties of Fe(3)Al intermetallics were investigated. The results show that the heat-treated Fe(3)Al intermetallics at higher cooling rate has finer grained microstructure than lower cooling rate, and the lattice distortion increases due to the higher solid solubility of the elements Cr and B at higher cooling rate. The tensile strength and hardness of the Fe(3)Al intermetallics at higher cooling rate are slightly higher also. However, the impact power of intermetallics at higher cooling rate is 67.5% higher than that at lower cooling rate, and the impact fracture mode is also transformed from intercrystalline fracture at lower cooling rate to intercrystallin+transcrystalline mixed fracture at higher cooling rate.
关键词	Fe(3)Al Cooling Rate Heat Treatment Microstructure Property
DOI	10.4028/www.scientific.net/AMR.189-193.3891
收录类别	CPCI
语种	英语
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Manufacturing ; Materials Science, Multidisciplinary
WOS记录号	WOS:000292279502059
引用统计	被引频次[WOS]：0 [WOS记录] [WOS相关记录]
文献类型	会议论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/37387
专题	国际教育学院材料科学与工程学院
通讯作者	Li, Yamin
作者单位	Lanzhou Univ Technol, Minist Educ, Key Lab Nonferrous Met Alloys & Proc, Lanzhou 730050, Gansu, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
推荐引用方式 GB/T 7714	Li, Yamin,Liu, Hongjun,Hao, Yuan. Effect of Cooling Rate on Microstructure and Properties of Heat-treated Fe(3)Al Intermetallics[C]. LAUBLSRUTISTR 24, CH-8717 STAFA-ZURICH, SWITZERLAND:TRANS TECH PUBLICATIONS LTD,2011:3891-3894.