Mechanical behavior of Fe(65.5)Cr(4)Mo(4)Ga(4)P(12)C(5)B(5.5) bulk metallic glass

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	Mechanical behavior of Fe(65.5)Cr(4)Mo(4)Ga(4)P(12)C(5)B(5.5) bulk metallic glass
	M. Stoica; J. Eckert; S. Roth; Z. F. Zhang; L. Schultz; W. H. Wang
	2005
发表期刊	Intermetallics
ISSN	0966-9795
卷号	13 期号:7 页码:764-769
摘要	Fe(65.5)Cr(4)Mo(4)Ga(4)P(12)C(5)B(5.5) bulk amorphous rectangular bars with a cross-section of 2 x 2 mm(2) and a length of 30 mm were produced by copper mold casting. The as-cast bars as well as annealed samples were investigated by compression and Vickers hardness tests. The fracture strength for the as-cast samples sigma(f) is 2.8 GPa and the fracture strain epsilon(f) is 1.9%. Upon annealing at 715 K for 10 min, i.e. at a temperature below the calorimetric glass transition, the fracture strain drops to 1.6% and no plastic deformation is observed. The Vickers hardness HV for the as-east samples is about 885, and increases to 902 upon annealing. The fracture behavior of this Fe-based bulk glassy alloy is significantly different in comparison with the well-studied Zr-, Cu- or Ti-based good glass-formers. The fracture is not propagating along a well-defined direction and the fractured surface looks irregular. Instead of veins, the glassy alloy develops a high number of microcracks. (c) 2005 Elsevier Ltd. All rights reserved.
部门归属	inst met mat, leibniz inst solid state & mat res dresden, d-01171 dresden, germany. tech univ darmstadt, dept mat & geosci, div phys met, d-64287 darmstadt, germany. chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. chinese acad sci, inst phys, beijing 100080, peoples r china.;stoica, m (reprint author), inst met mat, leibniz inst solid state & mat res dresden, pob 270016, d-01171 dresden, germany;m.stoica@ifw-dresden.de
关键词	Glasses Metallic Fracture Stress Mechanical Testing C-b Alloys Magnetic-properties Amorphous-alloys High-strength Ti
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35036
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. Stoica,J. Eckert,S. Roth,et al. Mechanical behavior of Fe(65.5)Cr(4)Mo(4)Ga(4)P(12)C(5)B(5.5) bulk metallic glass[J]. Intermetallics,2005,13(7):764-769.
APA	M. Stoica,J. Eckert,S. Roth,Z. F. Zhang,L. Schultz,&W. H. Wang.(2005).Mechanical behavior of Fe(65.5)Cr(4)Mo(4)Ga(4)P(12)C(5)B(5.5) bulk metallic glass.Intermetallics,13(7),764-769.
MLA	M. Stoica,et al."Mechanical behavior of Fe(65.5)Cr(4)Mo(4)Ga(4)P(12)C(5)B(5.5) bulk metallic glass".Intermetallics 13.7(2005):764-769.