高波
博士 教授 硕士生导师
东北大学 冶金学院新能源系
新能源材料、非平衡凝固
个性化签名
- 姓名:高波
- 目前身份:在职研究人员
- 担任导师情况:硕士生导师
- 学位:博士
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学术头衔:
省级人才支持计划入选者
- 职称:高级-教授
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学科领域:
有色金属冶金
- 研究兴趣:新能源材料、非平衡凝固
高波,生于1976年,中共党员,工学博士,教授。毕业于大连理工大学三束材料改性国家重点实验室,任职于东北大学材冶学院。美国纳米协会会员,电子束离子束专业委员会委员,J.Alloys.Comp.,Applied Surface Science, Vacuum,Surf.Coats.Technol.等杂志审稿人。主要研究方向为轻合金表面改性,非平衡凝固。 长期从事强流脉冲电子束表面改性、稀土对材料改性机理等方面的研究工作,在该领域具有较深的造诣。在国内外学术刊物和国际会议上发表论文60余篇,其中SCI检索30篇,EI检索27篇;SCIE引用500余次,中国期刊网引用80余次,单篇最高引用30次,申请专利50项,第一申请人42项,授权15项。 作为负责人主持科技支撑专题项目、自然科学基金面上项目、教育部新教师基金、辽宁省创新团队项目、中国博士后科学基金、、辽宁省百千万人才工程以及沈阳市基金项目;作为主要参与人参与973、863、辽宁省科学基金等项目;参与多项横向课题的研发与应用工作。
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724
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成果数
12
Jidong He, Bo Gao
Materials Research,2019,22(2):1-4
2019年07月29日
An hypereutectic aluminium alloy with a composition of 16-18wt%Si, 4-5wt%Cu, 0.45-0.65wt%Mg, 0.3wt%Nd and Al balance (A390-0.3wt%Nd alloy) was processed by extrusion and aging at 200ºC for 10 hours. The effect of the thermomechanical processing and heat treatment on microstructure and mechanical properties was investigated for A390-0.3wt%Nd alloy. It was shown that the eutectic structure disappeared after the processing and heat treatment. In the meantime, the morphology of Al(Si,Mg) solid solution was transformed from dendritic to equiaxed and the Si particles were refned to have fne sizes of 1-10µm and dispersed in the Al(Si,Mg) matrix. Some of the Si particles became globular in shape, which can reduce stress concentration. The tensile strength of the A390-0.3wt%Nd alloy increased by 14.8% (211MPa to 242MPa) after extrusion and aging, and the elongation to fracture increased signifcantly from 0.5% to 13.3%. Thus, the mechanical properties of extruded and heat-treated A390-0.3wt%Nd alloy were improved after the extrusion and aging. The fracture mode is transformed from brittle fracture of as-cast alloy to ductile fracture of extruded and heat-treated alloy.
Aluminium alloy,, thermomechanical processing,, heat treatment,, mechanical properties.,
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Kui Li, Bo Gao
coatings,2019,9(413):1-10
2019年06月28日
In this paper, the effect of high-current pulsed electron beam (HCPEB) on the microstructure refinement of an Al–20Si–5Mg alloy in the cross-section modified zone was studied, and a double-layer ultrafine crystal structure of the Al–20Si–5Mg alloy was formed. It was found that the cross-section modified zone was divided into three zones, namely, the remelted layer, the heat-affected zone, and the thermal stress wave-affected zone after HCPEB treatment. For the remelted layer, metastable structures were formed due to the rapid heating and cooling rates. For the heat-affected zone, the grain of the aluminum phase was refined due to the cooperative effects of shock wave (formed during an eruption event of the brittle phase), thermal-stress wave (formed during thermal expansion of the alloy surface), and quasi-static thermal stress (formed as a result of an unevenly distributed temperature gradient in the inner material) at high temperatures. For the thermal stress wave-affected zone, the grain refinement was not obvious due to the decreasing energy of the shock wave and the thermal-stress wave at low temperatures. In addition, firm evidence for the tracing of shock waves in the heat-affected zone was demonstrated for the first time and verified for the founding of the broken acicular eutectic silicon. Through this experiment, the mechanical properties of Al–20Si–5Mg alloy materials in both the remelted layer and heat-affected zone were significantly improved after HCPEB treatment.
high-current pulsed electron beam, heat-affected zone, shock wave, thermal stress wave, grain refine
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【期刊论文】Effect of Corrosion Inhibitors on Chromate-free Passivation of Hot-Dip Galvanized Steel
Liyang DONG, Bo GAO
MATERIALS SCIENCE,2018,24(3):265-270
2018年11月16日
Commercially available passivation methods for white-rust protection of Hot-Dip Galvanized steel have been applied for chromate passivation. However, hexavalent chromium (Cr-VI) is highly toxic and carcinogenic. Therefore, in this paper, we put forth a new means for white-rust protection of Hot-Dip Galvanized steel based on the effects of corrosion inhibitors. In this study, the passivation solution combines the advantages of inorganic salt passivation, silane passivation and resin passivation. The corrosion resistance of the inorganic and organic composite passivation films with corrosion inhibitors was determined by a neutral salt spray test and electrochemical Tafel polarization curves. The surface chemistry of the coatings was monitored by scanning electron microscopy (SEM), X-ray Photoelectron spectroscopy (XPS) and Fourier transform infrared reflection absorption spectroscopy (FTIR). And further studying on the formation mechanism of the passivation film was carried out. The SEM indicated that the top surface of the passivation film was transparent, smooth, uniform and compact. The XPS and FTIR results showed that the passivation film consisted mainly of organic functional groups including-(CH2)n-, -OH, N-H, C=O, C-Si, C-O-C, C-N, Si-O-Si, Si-O-C and so on. The corrosion resistance of passivation film with corrosion inhibitors was significantly improved than that of the passivation film without corrosion inhibitor. After 96h of the corrosion test, the corrosion area was found to be less than 5 %, which indicated that the passivation film greatly improved the corrosion resistance of the hot-dip galvanized sheet, and exhibited a very good protective effect so that can met some industrial applications.
corrosion,, hot-dip galvanized steel,, chromium free,, corrosion inhibitor,, passivation.,
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高波
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-1年11月30日
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高波
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-1年11月30日
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【期刊论文】Effect of Nd microstruture and mechanical properties of hypereutectic AI-25Si alloy
高波
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-1年11月30日
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高波
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-1年11月30日
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高波
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-1年11月30日
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高波
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-1年11月30日
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