Acta Metall Sin  1995, Vol. 31 Issue (5): 201-208    DOI:

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VALENCE ELECTRON STRUCTURE OF Fe_2B PHASE AND ITS EIGEN-BRITTLENESS

LI Musen; FU Shaoli(Shandong University of Technology; Jinan 250014). XU Wandong(Tianjin University; Mianjin 300072); ZHANG Ruilin. YU Ruihuang(Jilin University; Changchun 130023)

LI Musen; FU Shaoli(Shandong University of Technology; Jinan 250014). XU Wandong(Tianjin University; Mianjin 300072); ZHANG Ruilin. YU Ruihuang(Jilin University; Changchun 130023). VALENCE ELECTRON STRUCTURE OF Fe_2B PHASE AND ITS EIGEN-BRITTLENESS. Acta Metall Sin, 1995, 31(5): 201-208.

Abstract References Related Articles Recommended Metrics Download:  PDF(496KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The valence electron structure of Fe_2B phase was studied on the basis of Yu's empirical electron theory of solids and molecules.The values of valence electrons on every bond in an atomic coordinate cluster were calculated by the method of bond length difference(BLD). The results showed that the bonds between Fe-Fe atoms along (220] direction were strongest, of which the value of valence electrons n_A=0.3852 and the bond energy E_A = 1 5.7372 kJ / mol, The bonds between B-B atoms along [002] direction were weaker, of which n_D = 0. 1 392 and E_D = 4.5052 kJ/ mol. A space bond network of Fe_2B crystal was built,so the cause of the eigen-brittleness could be translated by a heterogeneity of the bond distribution. Comparing experimental results to theoretical analysis, it came to the conclusion that there was a conformability between them. Key words:  Fe_2B phase      valence electron structure      eigen-brittleness      Received:  18 May 1995      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1995/V31/I5/201 1片桐敏夫.金属表面技术,1978;29(5):2562周建初,王介淦,滕立霞,赵荣椿,张世雄.金属热处理学报,1980;1(2):413吴鲁周,高金华.金属热处理,1983;6:424LilientalW,TacikowskiJ．IndustrialHeating,1980;47(4):345何孝渝,虞润林,王玲,吴宝善,宣建功.兰州大学学报(自然科学版),1984;20(2):226余瑞璜.科学通报,1978;23:2177余瑞璜.科学通报,1981;26:2068AronssonB．LundstromT,RundqivstS．In:Borides,SilicidesandPhosphides,London:Methuen,1965:1959PearsonWB．AHandbookofLatticeSpacingsandStructuresofMetalsandAlloys．NewYork:Pergamon,1958:22010张瑞林.固体与分子经验电子理论.长春:吉林科学技术出版社,1993:23611余瑞璜.金属学报,1982;18:33612余瑞璜.吉林大学自然科学学报,1977;4:6713BrownP1,CoxJL．PhilosMag,1971;23:70514PerkinsRS,BrownPJ．JPhys,F:MatelPhys,1974;4:90615张瑞林.固体与分子经验电子理论.长春:吉林科学技术出版社,1993:26816徐万东,张瑞林,余瑞璜,中国科学,1988;A18(3):32317孟陈吕,张何刘.钢铁,1979;14(5):3518李木森,侯绪荣,郭晓燕,邹习文.理化检验(物理分肥),1989;27(1):7 [1] HUANG Lian, GAO Kunyuan, WEN Shengping, HUANG Hui, WANG Wei, NIE Zuoren. VALENCE ELECTRON STRUCTURE ANALYSIS OF EQUILIBRIUM AND METASTABLE PHASES OF Al3M(M=Ti, Zr, Hf)[J]. 金属学报, 2012, 48(4): 492-501. [2] LIU Zhilin; LIU Weidong; LIN Cheng. STRENGTH CALCULATION AND ITS PREDICTION OF NON QUENCHED-TEMPERED STEEL DURING CONTINUOUS CASTING-ROLLING[J]. 金属学报, 2004, 40(12): 1248-1252 . [3] ZHU Ruifu; LU Yupeng; CHEN Chuanzhong; LI Shitong; WANG Shiqing (Shandong University of Technology; Jinan 250061) ZHANG Fucheng (Yanshan University; Qinhuangdao 066004). AN ANALYSIS OF VALENCE ELECTRON STRUCTURE OF Fe-C-Mn ALLOYING AUSTENITE[J]. 金属学报, 1996, 32(6): 561-564. [4] ZHANG Jianmin(Central Iron and Steel Research Institute;Ministry;of Metallurgical Industry;Beijing 100081)ZHANG Ruilin;YU Ruihuang(Jilin University;Changchun 130023)(Manuscript received 1994-08-29;in revised form 1995-02-05). HYDROGEN EMBRITTLEMENT BEHAVIOUR IN Fe_3Al[J]. 金属学报, 1995, 31(7): 300-303. [5] ZHENG Yasgzeng;ZHANG Fucheng Yanshan University; Qinhuangdao. EFFECT OF HETEROGENEOUS DISTRIBUTION OF C AND ALLOYING ELEMENTS ON γ/α′ TRANSFORMATION IN A Fe-Mn-Cr-C ALLOY[J]. 金属学报, 1991, 27(3): 82-85. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed