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Improved Corrosion Resistance of Selective Laser Melted Ti-5Cu Alloy Using Atomized Ti-5Cu Powder
Han, Ying; Wang, Hong-Rui; Cao, Yun-Dong; Hou, Wen-Tao; Li, Shu-Jun
2019-08-01
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Volume32Issue:8Pages:1007-1014
AbstractThe different types of metal powder used for selective laser melting (SLM) process would cause distinct corrosion behavior due to the uniformity of the obtained microstructure. The SLM-produced Ti-5Cu alloy using atomized Ti-5Cu metal powder (SLMed Ti-5Cu) in this work reveals a relatively uniform microstructure with overwhelming acicular / phase and shows great advantages on corrosion resistance compared with the SLM-produced Ti-5Cu alloy using the mixture powder (SLMed-M Ti-5Cu). The effect of the micro-galvanic cells decreases due to the undetectable Ti2Cu phase in the microstructure of the SLMed Ti-5Cu. An apparent passivation behavior was observed for SLMed Ti-5Cu instead of severe pitting phenomenon for the SLMed-M Ti-5Cu. The charge transfer resistance of SLMed Ti-5Cu in this work is 10.09 +/- 2.63Mcm(2), which is significantly higher than that of SLMed-M Ti-5Cu (4.76Mcm(2)). The above result indicates the atomized Ti-5Cu powder plays an important role in the formation of the uniform microstructure of SLMed product, thereby enhancing its corrosion resistance in Hank's solution at 37 degrees C.
KeywordSelective laser melting Corrosion behavior Uniform microstructure Ti-5Cu Passivation Polarization resistance
Indexed BySCI
Language英语
WOS IDWOS:000473228900009
PublisherCHINESE ACAD SCIENCES, INST METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80868
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Han, Ying,Wang, Hong-Rui,Cao, Yun-Dong,et al. Improved Corrosion Resistance of Selective Laser Melted Ti-5Cu Alloy Using Atomized Ti-5Cu Powder[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2019,32(8):1007-1014.
APA Han, Ying,Wang, Hong-Rui,Cao, Yun-Dong,Hou, Wen-Tao,&Li, Shu-Jun.(2019).Improved Corrosion Resistance of Selective Laser Melted Ti-5Cu Alloy Using Atomized Ti-5Cu Powder.ACTA METALLURGICA SINICA-ENGLISH LETTERS,32(8),1007-1014.
MLA Han, Ying,et al."Improved Corrosion Resistance of Selective Laser Melted Ti-5Cu Alloy Using Atomized Ti-5Cu Powder".ACTA METALLURGICA SINICA-ENGLISH LETTERS 32.8(2019):1007-1014.
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