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Characterization of stainless steel parts by Laser Metal Deposition Shaping
Zhang K(张凯); Wang, Shijie; Liu WJ(刘伟军); Shang XF(尚晓峰)
Department装备制造技术研究室
Source PublicationMaterials & Design
ISSN0264-1275
2014
Volume55Pages:104-119
Indexed BySCI ; EI
EI Accession number20134516952289
WOS IDWOS:000329118700013
Contribution Rank2
KeywordDeposition Laser Applications Mechanical Properties Morphology Optimization Powder Metals Scanning Electron Microscopy x Ray Diffraction
Abstract

Laser Metal Deposition Shaping (LMDS) is a new rapid manufacturing technology, which can build fully-dense metal components directly from the information transferred from a computer file by depositing metal powders layer by layer with neither mould nor tool. Typically, performed with stainless steel (SS) 316 powder, the orthogonal experiments combining with the ideal overlapping model were applied to ascertain the optimal processing parameters. Then the characteristics of microstructure, composition and phase of as-deposited cladding layers were analyzed through Scanning Electron Microscope (SEM) and X-ray diffraction (XRD), as well as relative model. Furthermore, the cooling rate and the solidification velocity during LMDS were evaluated based on empirical method. With the optimal parameters, some parts were fabricated without obvious defects, and then the mechanical properties of them were tested. Finally, the influencing regularities of critical parameters on microstructure and properties were concluded by comparison. The results prove that the microstructure of SS 316 deposits is composed of the slender dendrites growing epitaxially from the substrate, the mechanical properties are favorable and anisotropic, and the composition is uniform. Besides, the microstructure morphology and the mechanical properties are affected by the varied processing parameters at different degrees. Among them, the scanning speed shows the most remarkable effects on microstructure morphology, characteristic microscale, mechanical properties, as well as geometric shape of as-deposited parts.

Language英语
WOS HeadingsScience & Technology ; Technology
WOS SubjectMaterials Science, Multidisciplinary
WOS KeywordThermal-behavior ; Powder ; Wire ; Solidification ; Fabrication ; Components ; Corrosion
WOS Research AreaMaterials Science
Citation statistics
Cited Times:81[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/13956
Collection智能产线与系统研究室
Corresponding AuthorZhang K(张凯)
Affiliation1.School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870, China
2.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
3.School of Mechanical and Electrical Engineering, Shenyang Aerospace University, Shenyang 110136, China
Recommended Citation
GB/T 7714
Zhang K,Wang, Shijie,Liu WJ,et al. Characterization of stainless steel parts by Laser Metal Deposition Shaping[J]. Materials & Design,2014,55:104-119.
APA Zhang K,Wang, Shijie,Liu WJ,&Shang XF.(2014).Characterization of stainless steel parts by Laser Metal Deposition Shaping.Materials & Design,55,104-119.
MLA Zhang K,et al."Characterization of stainless steel parts by Laser Metal Deposition Shaping".Materials & Design 55(2014):104-119.
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