王德庆
主要从事新材料的开发与应用
个性化签名
- 姓名:王德庆
- 目前身份:
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- 学位:
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学术头衔:
博士生导师
- 职称:-
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学科领域:
材料科学
- 研究兴趣:主要从事新材料的开发与应用
王德庆,1982年毕业于大连理工大学金属材料及热处理专业,1984年毕业于大连理工大学研究生院铸造专业。1991年至1994年在美国威斯康辛大学留学,先后为美国能源部、美国海军研究中心,通用汽车等进行过Al2O3/SiC陶瓷复合材料,金属基复合材料以及铝基复合材料汽缸的研究。1997年和1999年分别以访问教授和高级访问学者身份去比利时陶瓷研究中心和鲁汶大学,参与了欧洲联盟的原位反应合成铝基复合材料和泡沫铝的研究工作。
现为大连交通大学材料科学与工程学院教授、博士生导师;轨道交通关键材料辽宁省重点实验室轻量化车体材料学术带头人;美国应用科学杂志(American Journal of Applied Science)2005-2006年度区域编辑;表面涂层技术杂志(Surface and Coatings Technology)、材料科学杂志(Journal of Materials Science)、材料科学与工程(Materials Science and Engineering A)、材料科学与技术(Journal of Materials Science and Technology)和材料通讯(Materials Letters)的论文评审;国家自然科学基金项目评审专家;教育部科技发展中心、国际铜业协会 (ICA) 与跨学科先进材料研究中心 (CIMAT) 的技术发展项目评审专家。
由于在低温材料的显微组织与性能方面的突出研究成果和独到的见解被1987年国际低温材料年会发表邀请论文; 首次揭示的SiC纤维增强 Al2O3基复合材料的显微组织刊登在Materials Letters杂志1993年第六期的封面上;内燃机车柴油机磨粒磨损特性及提高缸套活塞环耐磨性研究于1989年获铁道部科技成果二等奖。主持国家自然科学基金和省部级研究项目14项,横向课题6项。
现主要从事新材料的开发与应用,主要的研究课题有:复合材料(金属与陶瓷)、多孔与泡沫材料(金属、陶瓷与复合材料)、钢铁表面改性(镀、覆、陶瓷化、陶瓷)、陶瓷及复合材料的原位与自蔓延合成、金属的搅拌摩擦焊接、纳米块体材料(金属及金属基复合材料)的表征、制备与性能。在新材料的制备工艺、组织与性能方面具有前沿和领先的研究内容,并取得了较为突出的成果,如可加工陶瓷与泡沫陶瓷的制备技术;压缩空气发泡闭孔泡沫铝材生产技术;全通孔骨架状泡沫铝、铜、镍的生产技术;颗粒增强铝基复合材料的制备技术;电镀法生产铜包铝冷拔导线;自蔓延生产金属/陶瓷及陶瓷/陶瓷复合材料;金属切削工具表面净尺寸耐磨层镀覆技术;钢铁表面自生陶瓷化技术,搅拌摩擦焊,双金属复合板生产技术等。压缩空气法连续生产闭孔泡沫铝技术于2004年12月通过由辽宁省教育厅组织的专家鉴定,鉴定结论为该技术已达到国际领先水平。
先后为金属材料专业本科生和研究生讲授了微处理机在热处理中的应用、专业英语、热处理设备、热处理参量测量与控制、金属学原理、科技英语、科技文献阅读、陶瓷与非金属材料、大学英语、材料检验技术、科技论文写作、材料科学基础、先进制造技术等课程,编写本科生教材4部,研究生教材1部,在国内外发表文章81篇,被SCI、EI收录25篇。
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主页访问
2567
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关注数
0
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成果阅读
765
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成果数
18
【期刊论文】A liquid aluminum corrosion resistance surface on steel substrate
王德庆, Wang Deqing, Shi Ziyuan, Zou Longjiang
W. Deqing et al. Applied Surface Science 214 (2003) 304-311,-0001,():
-1年11月30日
The process of hot dipping pure aluminum on a steel substrate followed by oxidation was studied to form a surface layer of aluminum oxide resistant to the corrosion of aluminum melt. The thickness of the pure aluminum layer on the steel substrate is reduced with the increase in temperature and time in initial aluminizing, and the thickness of the aluminum layer does not increase with time at given temperature when identical temperature and complete wetting occur between liquid aluminum and the substrate surface. The thickness of the Fe–Al intermetallic layer on the steel base is increased with increasing bath temperature and time. Based on the experimental data and the mathematics model developed by the study, a maximum exists in the thickness of the Fe–Al intermetallic at certain dipping temperature. X-ray diffraction (XRD) and energy dispersive X-ray (EDX) analysis reveals that the top portion of the steel substrate is composed of a thin layer of α-Al2O3, followed by a thinner layer of FeAl3, and then a much thicker one of Fe2Al5 on the steel base side. In addition, there is a carbon enrichment zone in diffusion front. The aluminum oxide surface formed on the steel substrate is in perfect condition after corrosion test in liquid aluminum at 750℃ for 240h, showing extremely good resistance to aluminum melt corrosion.
Aluminizing, Diffusion, Intermetallic compounds, Corrosion protection
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【期刊论文】Aluminizing and oxidation treatment of 1Cr18Ni9 stainless steel
王德庆, Deqing Wang, Ziyuan Shi
D. Wang, Z. Shi. Applied Surface Science 227 (2004) 255-260,-0001,():
-1年11月30日
The process of hot dipping pure aluminum on a stainless steel (1Cr18Ni9) followed by oxidation was studied to form a surface oxide layer. The thickness of the top aluminum on the steel substrate increases with increasing aluminizing time, while the thickness of the aluminum layer in the steel decreases as the increase in dipping temperature. Lower temperature and longer time favor a thicker layer of the aluminum on the substrate. The thickness of the intermetallic layer in the steel substrate increases with dipping temperature and time. However, the higher aluminizing temperature does not appear to have a signicant effect on the thickness of the intermetallic layer. The oxidation treatment of the aluminized steel at 800℃ results the formation of a top oxide layer on the steel surface, composed of α-alumina, Al4Cr and Al17Cr9. The aluminizing and oxidation treatment of the stainless steel creates about 120μm thickness of top oxide layer which has an extremely sound adherency to the steel substrate and a greatly improved properties of thermal shock withstanding, high temperature oxidation resistance and anti-liquid aluminum corrosion.
Aluminizing, Diffusion, Intermetallic compounds, Corrosion resistance
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【期刊论文】Study of friction stir welding of aluminum
王德庆, WANG DEQING, LIU SHUHUA, CAO ZHAOXIA
JOURNAL OF MATERIALS SCIENCE 38 (2003) 1-5,-0001,():
-1年11月30日
A half-cold hardening aluminum plate were friction-stir welded at various rotation speeds (850–1860rpm) and travel rates of 30 to 160 mm/min with welding forces ranging between 2.5 and 10MPa using different dimension welding heads. Experimental results show that the dimensions of the welding head are critical to produce sound welds. The microstructure of the weld is characterized by its much ner and equiaxed grains as contrasted with the coarse and band-like structure of the parent aluminum plate. Tensile strength of the welds is about 20% lower than that of the hardening aluminum plate, but about 10% higher microhardness is demonstrated by the welds in comparison with that of the aluminum plate in annealing condition. Moreover, travel rate of the welding head pin has a strong effect on microhardness and tensile strength of the FSW welds, and the ratio of rotation speed and travel rate of the head should be in a reasonable range to obtain high performance welds. The variables of the welding process are also discussed in terms of heat balance and energy input of the welds.
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【期刊论文】Cell size prediction of a closed aluminum foam
王德庆, Wang Deqing, Xue Weiwei, Shi Ziyuan
D. Wang et al. Materials Science and Engineering A 431 (2006) 298-305,-0001,():
-1年11月30日
In order to predict foam size of a closed cell aluminum foam produced by air-foaming aluminum melt, three-dimensional static and dynamic simulations of bubble formation process were conducted in a polyvinyl alcohol solution with varied viscosities. The variables affecting flow nature and bubbling characteristics of compressed air injected into the solution were all investigated, and numerical models were developed for the prediction of bubble size in both static and dynamic foaming conditions. By modification of the dynamic model, a numerical equation was established, accounting for all the geometric, physical and hydromechanical factors of processing the aluminum foam. Moreover, the resulting numerical model predicting foam size of the closed cell aluminum foam was verified and modified by comparison to the results from practical foaming process under different production conditions. The finalized model of foam size prediction has strong correlation with the experimental data.
Aluminum foam, Static simulation, Dynamic simulation, Foam size prediction
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142下载
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【期刊论文】Cladding of stainless steel on aluminum and carbon steel by interlayer diusion bonding
王德庆, Wang Deqing, Shi Ziyuan, Qi Ruobin
W. Deqing et al. Scripta Materialia 56 (2007) 369-372,-0001,():
-1年11月30日
An Al–Cu–Mg interlayer alloy is used in cladding the sheets of 304L stainless steel/L2Y2 aluminum alloy and 304L stainless steel/Q235A carbon steel. Eects of cladding temperature and time on the interfacial bonding of the two sheets are studied. Experimental results show that the Interfacial cohesion of the substrates and the clad stainless steel is closely related to the thickness of the diusion layers in the substrates and the clad, and controlled by diusion layer thickness in 304L side.
Clad, Aluminum alloys, Interface diusion, Iron aluminide
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【期刊论文】Composite plating of hard chromium on aluminum substrate
王德庆, Wang Deqing, , Shi Ziyuan, Kou Tangshan
W. Deqing et al. Surface & Coatings Technology 191 (2005) 324-329,-0001,():
-1年11月30日
iple electroplating process. Within the ranges of the experimental temperature and current density for all of the nickel, copper and chromium electroplatings, a maximum in the coating thickness as a function of temperature or current density exists. The optimized plating conditions to obtain the thickest coatings are at 2.5A/dm2 and 49℃ for nickel, 0.8 A/dm2 and 20℃ for hydroxyl ethydene diphosphate (HEDP) copper, 2.6 A/dm2 and 30℃ for acid copper and 29A/dm2 and 54℃ for hard chromium. Under the optimized conditions, a sound adhesion between any plated materials over the aluminum base is achieved, and a bright, uniform and flawless chromium coating is obtained with a microhardness of HV1029. The hard chromium coating layer has a higher anti-pitting property in 3.5wt.% sodium chloride solution than that of a 0.1% C–13% Cr stainless steel.
Electroplating, Aluminum, Hard chromium
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【期刊论文】Effect of ceramic particles on cell size and wall thickness of aluminum foam
王德庆, Wang Deqing, Shi Ziyuan
W. Deqing, S. Ziyuan. Materials Science and Engineering A 361 (2003) 45-49,-0001,():
-1年11月30日
A process of foaming aluminum alloy melt by air was conducted to study the effect of SiC and Al2O3 particles on cell size and wall thickness of aluminum foam. The effects of size and concentration of the ceramic particles were investigated at various foaming temperatures and airow rates. The results show that the cell size and wall thickness increase with increasing SiC and Al2O3 particle size and concentration at constant foaming temperature, and the cell wall thickness decreases with increasing foaming temperature. It was found that stable foam does not occur until a critical particle concentration is reached for some of the SiC and Al2O3 particles, while the excessive addition of the particles leads to unstable foaming. Therefore, a range of the particle concentration is critical for stable foaming of the composite slurry at the foaming temperatures.
Aluminum Foam, Process, Cell size, Airow
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【期刊论文】Effect of processing parameters on cell structure of an aluminum foam
王德庆, Wang Deqing, Meng Xiangjun, Xue Weiwei, Shi Ziyuan
W. Deqing et al. Materials Science and Engineering A 420 (2006) 235-239,-0001,():
-1年11月30日
A closed cell aluminum foam with the same composition but different cell sizes and structures was prepared by changing air injection rate and impeller speed during foaming process to study the inuence of air injection rate and impeller speed on cell structure. The foams prepared under the foaming conditions are characterized as roughly equiaxed polyhedral cells with density range of 0.1–0.22g/cm3 and cell diameter of 4–11mm with different cell wall thickness and Plateau border size. Cell size of the aluminum foam is increased with increasing air injection rate, and higher impeller speed results in a much smaller cell size at given air injection rate. Cell wall thickness and Plateau border size of the aluminum foams are decreased with the increase in cell size. Moreover, the higher impeller speed produces smaller size of the foam cells with thicker cell wall and Plateau border size, resulted in higher density foam in contrast to the foam with the same cell size prepared at lower impeller speed.
Aluminum foam, Air injection, Impeller speed, Cell size, Foam density
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【期刊论文】Formation of Al2O3 layer on steel
王德庆, WANG DEQING, SHI ZIYUAN
JOURNAL OF MATERIALS SCIENCE LETTERS 22, 2003, 1003-1006,-0001,():
-1年11月30日
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【期刊论文】Microstructure and oxidation of hot-dip aluminized titanium at high temperature
王德庆, Wang Deqing, Shi Ziyuan, Teng Yingli
W. Deqing et al. Applied Surface Science 250 (2005) 238-246,-0001,():
-1年11月30日
High-temperature diffusion of a hot-dip aluminized titanium is conducted to study microstructure changes and oxidation behavior of the aluminized titanium. After aluminizing, the titanium substrate is covered by a black layer in which tiny blockshaped TiAl3 particles are scattered in aluminum matrix. Based on the diffusion experiment results, the thickness of the aluminum diffusion layer at 800℃ increases with diffusion time. However, the aluminum diffusion layer at 900℃ grows and reaches its maximum thickness in 6h, and then the thickness of the aluminum diffusion layer is reduced with prolonged diffusion time. An inversion of the diffusion layer thickness versus time appears for the aluminized titanium treated at 1000℃, and the thickness of the diffusion layer keeps declining with diffusion time. The phases present in the outer and middle sublayers are titanium-rich TiAl3 and equilibrium TiAl3, respectively. However, the phase in inner sublayer changes from titanium-rich TiAl3 to TiAl2 and TiAl as diffusion temperature and time increase. Through energy-dispersive X-ray and X-ray diffraction analysis, the oxides formed in the oxidation process are Al2O3 and Al2TiO5. Although the oxide scale formed on the surface of the aluminized titanium has an insufcient stability and integrity, the thermal oxidation resistance of the aluminized titanium is still improved by over 5 times compared with that of the pure titanium.
Aluminizing, Titanium aluminide, Diffusion, Oxidation
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