Laser surface modification of AZ91D magnesium alloy with Si powder

	Laser surface modification of AZ91D magnesium alloy with Si powder
	Zhang, Jian-Bin; Ji, Gen-Shun; Fan, Ding; Liu, Hong-Tao
	2010-09-01
发表期刊	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
ISSN	10096264
卷号	31 期号:9 页码:107-110
摘要	To improve the hardness of AZ91D magnesium alloy, Si powder was preplaced on the surface of AZ91D magnesium alloy and then treated by a high power continuous wave CO2 laser. Mg2Si reinforced Mg-based matrix composite were synthesized. The microstructure formed in laser surface modified layer were investigated by means of optical microscope (OM), scanning electron microscope (SEM), electron probe X-ray micro-analyzer (EPMA), and X-ray diffractometer (XRD) as well as Vickers microhardness tester. The main phases in the alloyed layer are alpha-Mg, Al12Mg17 and Mg2Si. Mg2Si intermetallic compounds are distributed in dendrite shape. The morphology of Al-Mn phase changes from rod-like clusters in AZ91D substrate to spherical particles in the modified layer. The microhardness increased from 80 HV for as-received magnesium alloy to more than 324 HV for laser treated sample. The reasons can be explained by combining dispersion strengthening of Mg2Si and grain refining strengthening of Mg17Al12.
关键词	Aluminum Intermetallics Magnesium Magnesium alloys Magnesium powder Manganese Manganese compounds Microhardness Microscopes Microstructure Scanning electron microscopy Silicon Strengthening (metal) Alloyed layers AZ91D magnesium alloys Continuous Wave Dispersion strengthening Electron probe EPMA Grain refining High-power Intermetallic compounds Laser surface Laser surface modification Laser treated Matrix composite Microanalyzers Modified layer Optical microscopes Phase Change Scanning electron microscopes Spherical particle Vickers microhardness tester X ray diffractometers
收录类别	EI
语种	英语
出版者	Editorial Office of Transactions of Materials, 18 Xueqing Road, Beijing, 100083, China
EI入藏号	20104513372388
EI主题词	Silicon alloys
EI分类号	951 Materials Science - 933 Solid State Physics - 804.1 Organic Compounds - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 549.2 Alkaline Earth Metals - 543.2 Manganese and Alloys - 541.1 Aluminum - 531.1 Metallurgy - 421 Strength of Building Materials ; Mechanical Properties
来源库	Compendex
分类代码	951 Materials Science - 933 Solid State Physics - 804.1 Organic Compounds - 741.3 Optical Devices and Systems - 741.1 Light/Optics - 549.3 Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals - 549.2 Alkaline Earth Metals - 543.2 Manganese and Alloys - 541.1 Aluminum - 531.1 Metallurgy - 421 Strength of Building Materials; Mechanical Properties
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/111505
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Zhang, Jian-Bin,Ji, Gen-Shun,Fan, Ding,et al. Laser surface modification of AZ91D magnesium alloy with Si powder[J]. Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,2010,31(9):107-110.
APA	Zhang, Jian-Bin,Ji, Gen-Shun,Fan, Ding,&Liu, Hong-Tao.(2010).Laser surface modification of AZ91D magnesium alloy with Si powder.Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,31(9),107-110.
MLA	Zhang, Jian-Bin,et al."Laser surface modification of AZ91D magnesium alloy with Si powder".Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 31.9(2010):107-110.