边秀房
长期从事液态金属结构及其遗传性研究、非晶材料、铝合金的熔炼和净化、金属的凝固与结晶、新材料的开发及研制工作。
个性化签名
- 姓名:边秀房
- 目前身份:
- 担任导师情况:
- 学位:
-
学术头衔:
博士生导师
- 职称:-
-
学科领域:
材料科学
- 研究兴趣:长期从事液态金属结构及其遗传性研究、非晶材料、铝合金的熔炼和净化、金属的凝固与结晶、新材料的开发及研制工作。
边秀房,男,汉族,生于1953年,山东大学教授,博士生导师,材料液态结构及其遗传性教育部重点实验室主任。国家百千万人材工程第一二层次人选,享受国务院政府特殊津贴。长期从事液态金属结构及其遗传性研究、非晶材料、铝合金的熔炼和净化、金属的凝固与结晶、新材料的开发及研制工作。先后主持承担国家和省级科研课题20项,在国际国内学术刊物上发表论文200余篇。发明的“铝合金除渣除气剂”不仅在除渣除气性方面效果好,优于日本同类产品,而且提出了“以渣带气”的新理论。提高了使用效果,又减少了环境污染。自1989年通过鉴定并作为商品投产以来,至今已有200多家工厂长期使用,获得了显著的经济效益和社会效益,该项成果于1991年获国家发明四等奖。发现金属熔体不仅存在短程有序结构,而且存在中程有序结构,并提出了相应的结构演化理论。金属熔体团簇结构及其遗传性研究,2002年2月获中国高校自然科学一等奖。 铝合金热速处理理论及凝固控制项目,获山东省科学技术(理论成果)进步二等奖。在金属的遗传性研究方面完成专著《铸造金属遗传学》一部。利用金属的遗传性开发的铁相球化剂深受铝合金生产厂家的欢迎,并获国家发明四等奖。与博士生们一起研制和开发的高效遗传性AlTiB中间合金,正取代进口同类产品,并出口日本等发达国家。
-
主页访问
2446
-
关注数
0
-
成果阅读
554
-
成果数
9
【期刊论文】Cluster structure and dynamics of liqiuid aluminum under cooling conditions
边秀房, Li Hiu a), Wang Guanghou, Zhao Jijun, Bian Xiufang
,-0001,():
-1年11月30日
The thermal evolution and dynamics properties of small clusters in melt are investigated by molecular dynamics simulation with 500 particles. The interatomic ineraction is described by a well-fitted semiempirical tight binding potential. We have studied some solidlike clusters and structural properties of liquid aluminum. The atomic volume, internal energy, pair correlaion function, and bonded pairs in liqiud are obtained from quick cooling and slow cooling simulation. A comparison between the slow and quick cooling process reveals that the cooling rate significantly affects the evolution route of various clusters in liqiud aluminum. Our results show that glass contains a lot of 1551 and 1541 five-fold symmetry clusters. On the contrary, the crystal has some 1421 and 1422 clusters corresponding to a face-centered cubic structure and hexagonal closing-packedstructure. This work gives clear physical insight of the structure evolution form liquid to solid.
-
64浏览
-
0点赞
-
0收藏
-
0分享
-
180下载
-
0评论
-
引用
【期刊论文】Structural studies of clusters in melt of FeAl compound
边秀房, Li Hui, Ding Feng and Wang Jinlan, Bian Xiufang, Wang Guanghou
,-0001,():
-1年11月30日
By means of constant pressure molecular dynamics simulation technique, a series of simulations of the Fe50Al50 alloy have been carried out. The atoms interact via semi-empirical n-body noncentral potential. The pair correlation functions and the pair analysis technique is applied to reveal the cluster evolution in the process of quick solidification. By using the bond orientaion order parameters, we have measured both local and extended orientaion symmetries for computer-generated models of dense liquid and glass. A lot of polyhedra in liquid systems, e.g., icosahedra, are also obtained. In order to test the reliance of the computational results, corresponding x-ray diffracion experiments have been performed on the material.
-
61浏览
-
0点赞
-
0收藏
-
0分享
-
108下载
-
0评论
-
引用
【期刊论文】Microstructure selecion map for rapidly solidified Al-rich Al-Ce alloys
边秀房, Zhonghua Zhang a, *, Yan Wang b, Xiufang Bian a
Journal of Crystal Growth 260(2004)557-565,-0001,():
-1年11月30日
The effects of rapid solidification on the microstructure of Al-8Ce, Al-20 Ce and Al-36.6 Ce (wt%) alloys has been invesigated using X-ray diffraction, canning electon microscopy and transmisson electron microscopy. A microstructure selecion map has been esbablished for the rapidly solidified Al-rich Al-Ce alloys. Rapid solidification has no effect on the phase constitution but has a marked effect on the microstructure of the Al-8 Ce and Al-20 Ce alloys. For the Al-36.6 Ce alloy, however, rapid solidification has a significant effect on both the microstructure and the phase constitution.
Al., Microstructure, Al., X-ray diffraction, Al., Transmission electron microscopy, A2., Rapid solidification, B1., Al-Ce alloys
-
58浏览
-
0点赞
-
0收藏
-
0分享
-
166下载
-
0评论
-
引用
【期刊论文】Local cluster formaion in a cobalt melt during the cooling process
边秀房, Li Hiu, , *, Wang Guanghou, Bian Xiufang, and Ding Feng
,-0001,():
-1年11月30日
Investigations of the thermal evolution of the structural and dynamic properties of small cobalt clusters in melt are performed using molecular-dynamics simulations with a Finnis-Sinsclaire potemtial. The mean square displacements, atomic volume, and inernal energy, as well as the pair correlation function and bonded pairs, are obtained from quick and slow cooling simulations, respectively. The splitting of a second peak of pair correlation funcion is due to the presence of icosahedron-type clusters. The results demonstrate that the transition from a supercooled-liquid to a crystal is a discontinuous transition in structure, while the supercooled-liquid to glass transition is a continuous transiton in tructure. The physical picture of the tructure of metallic glass is a disrdered entanglement with a lot of icosahedar.
-
70浏览
-
0点赞
-
0收藏
-
0分享
-
121下载
-
0评论
-
引用
【期刊论文】Molecular dynamics study of the local oreder and defects in quenched states
边秀房, Li Hiu, , *, Bian Xiufang, and Wang Guanghou
PHYSICAL REVIEW B 67, 094202 (2003),-0001,():
-1年11月30日
Empirical tight binding model potentials have been used in molecular dynamics simulations of local order and defects in liquid and glass under high and normal pressures. Results are reported for some solidilike cluster and for structural properties of liquid and glass. Not only are Frank-Kasper polyhedra and Bernal hole polyhedra detected, but also a varity of defective icosahedra. Adramatic split of the second peak of g (r) is associated with the glass transition. The split of the second peak is caused by the fluidity of the liquid phase in glass. The nearest distance is shortened, and the nearest-neighbor corrdination number increase under high pressure. High pressure favors glass formation. The microstructure of glass is very similar to medium range order icosahedra structure.
-
67浏览
-
0点赞
-
0收藏
-
0分享
-
101下载
-
0评论
-
引用
【期刊论文】Correlation of viscosity and structural changes of indium melt
边秀房, Su-Juan Cheng a, b, *, Xiu-Fang Bian a, Jing-Xiang Zhang a, Xu-Bo Qin a, Zhong-Hua Wang c
Materials Letters 57(2003)4191-4195,-0001,():
-1年11月30日
The structure and dynamic viscosity of molten metal In in the temperature range from 280 to 750℃ and investigated by using a high-temperature X-ray diffractometer and a torsional oscillation viscometer. The experiments show that the nearest interatomic distance r1 and the corrdination number Ns of In melt decrease with increasing temperature from 280 to 750℃. The viscosity of In melt drops as temperature increases and meets on the whole the whole the exponential relation. Thermal contraction of atom clusters can be found in the heating process. The sudden change in structure or noticeable contraction occurs in the range of 390-550℃. The anomalous change of viscosity is measured at about 430 and 470℃, which is in good accordance with that of structure. A theoretical discussion on the correlation of struture and viscosity of In melt is given in this paper.
In melt, Liquid structure, Thermal contraction, Viscosity, X-ray diffracion
-
64浏览
-
0点赞
-
0收藏
-
0分享
-
75下载
-
0评论
-
引用
【期刊论文】Thermal-rate treatment and critical thickness for formation of amorphous Al85Ni10Ce5 alloy
边秀房, Xiufang Bian *, Minghua Sun
Materials Letters 57(2003)2460-2465,-0001,():
-1年11月30日
The effects of thermkal-rate treatment technique on the critical thickness of glass formation for an Al85Ni10Ce5 alloy melt have been investigated. The amorphous ribbon of the alloy with a thickness of 300μm is obtained using a single-roller melt-spinning technique by the thermal-rate tteatment, while that of 50μm is obtained at conventional melt superheavitn condition. The experiment shows that the coordiantion numbers of the Al85Ni10Ce5 alloy melt decreases from 12 to 9 with increasing melt temperature from 900 to 1200℃. The relationship between the corrdination numbers, the first position of the main peak of the alloy melt and the critical cooling rate for getting amorphous alloys has been discussed.
Melt treatment, Amorphous alloys, Structure transformation, X-ray diffraction
-
53浏览
-
0点赞
-
0收藏
-
0分享
-
65下载
-
0评论
-
引用
【期刊论文】Medium-range order and viscosity of molten Cu-23% Sn alloy
边秀房, Xiufang Bian *, Minhua Sun, Xianying Xue, Xuuo Qin
Materials Letters 57(2003)2001-2006,-0001,():
-1年11月30日
The structrues of molten Cu-23% Sn alloy at different temperatures have determined by using a high-teperature X-ray diffractometer. It has been found that there exist not only short-range order (SRO) structure but also medium-range order (MRO) structure in the molten alloy. The medium-range order structure in the alloy melt is a function of temperature. There exist obvious medium-range order structure at the range of temperatures from 900 to 1200℃. The medium-range order structure disappears when the temperature reaches 1300℃. the temperature dependence of the dynamic viscosity of the alloy melt has been measured using a torsional oscillation viscometer. It has been found that there is an abnormal change in the relationship between the temperature and the viscosity of the alloy melt. The abnormity change is consistent with the transformation from medium-range order to short-range order in the alloy melt.
Mdeium-range oreder, Viscosity, Alloy
-
55浏览
-
0点赞
-
0收藏
-
0分享
-
98下载
-
0评论
-
引用
【期刊论文】Variation of activation energy in Al-Ni-based alloy melts
边秀房, Xiufang Bian, Minhua Sun *, Wu Lei, Cheng Sujuan
Materials Research Bulletin 37(2002)1451-1458,-0001,():
-1年11月30日
Viscosities of Al85Ni15 alloy melt and the Al-Ni-based melts with the addition of Ce, Cu, and Mn have been measured by an oscillating vessel viscometer. Liquidus temperatures of those alloys have been determined using differential scanning calorimetry (DSC). A high temperature area (HTA) and a low temperature area (LTA) can be used to describe the viscosity behavior. LTA is in the range of 100℃ above liquidus. The activation energy of LTA is much higher than that of HTA. Variation of activation energy with temperature of Al-Ni-based melts was found for the first time. The relationship between the glass formability and viscosity of the alloy melts has been discussed.
A., Metals, A., Amorphous materials, C., Differential scanning calorimetry (, DSC), , D., Diffusion
-
62浏览
-
0点赞
-
0收藏
-
0分享
-
73下载
-
0评论
-
引用