Alternative TitleInfluences of Agglomeration Powder Preparation on Deposition of Cold-sprayed Ti2AlC Coating
臧旭升(); 谢曦(); 沈艳芳(); 王吉强(); 柏春光(); 熊天英()
Source Publication中国表面工程
Other AbstractThe Ti_2AlC submicron powders, fabricated by hot-pressing and ball milling, were hydrothermally treated. Then,Ti_2AlC coating was successfully deposited on Zr-4 substrate by cold spray using the powders. The microstructure of Ti_2AlC particles and as-sprayed coatings were characterized by scanning electron microscope(SEM), optical microscopy(OM), X-ray diffraction(XRD) and laser particle size analyzer. A micro hardness tester and a tensile-testing system were utilized to evaluate the mechanical properties of the Ti_2AlC coatings. The porosity of the coatings was measured by N_2 adsorption and the through-porosity of the coating was measured by an electrochemical workstation. The results show that the addition of (NH_4)_2SO_4 can promote the agglomeration of nanoparticles during hydrothermal treatment. The particle size of the Ti_2AlC powders increases from 0.3 μm to 6 μm after hydrothermal treatment with the addition of(NH_4)_2SO_4. Using the powders as feedstock, a dense Ti_2AlC coating of 100 μm thickness is deposited on Zr-4 substrate by cold spray. The bonding strength between the coating and substrate is measured to be 44 MPa. The coating is composed of micropores and mesopores, however,no through-porosity is noticed.
KeywordTi2AlC涂层 冷喷涂 水热处理 团聚
Indexed ByCSCD
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Document Type期刊论文
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GB/T 7714
臧旭升(),谢曦(),沈艳芳(),等. 团聚粉末制备工艺对冷喷涂Ti2AlC沉积的影响[J]. 中国表面工程,2018,31.0(004):140-147.
APA 臧旭升,谢曦,沈艳芳,王吉强,柏春光,&熊天英.(2018).团聚粉末制备工艺对冷喷涂Ti2AlC沉积的影响.中国表面工程,31.0(004),140-147.
MLA 臧旭升,et al."团聚粉末制备工艺对冷喷涂Ti2AlC沉积的影响".中国表面工程 31.0.004(2018):140-147.
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