Mechanical properties of Fe-based bulk glassy alloys in Fe-B-Si-Nb and Fe-Ga-P-C-B-Si systems
Mechanical properties of Fe-based bulk glassy alloys in Fe-B-Si-Nb and Fe-Ga-P-C-B-Si systems
复制标题
DOI：
10.1557/jmr.2003.0205
复制
发表时间：
2003-06-01
影响因子：
2.7
通讯作者：
Greer, AL
中科院分区：
文献类型：
--
作者：
Inoue, A;Shen, BL;Greer, AL
通过压缩试验和维氏硬度测试，研究了成分为（Fe0.75B0.15Si0.1）（96）Nb-4和Fe77Ga3P9.5C4B4Si2.5的铸造铁基大块非晶合金棒材的力学性能。杨氏模量（E）、屈服强度（sigma（y））、断裂强度（sigma（f））、弹性应变（是（e）的一个要素），断裂应变（是（f）的元素）、维氏硬度（H-v）分别为175 GPa、3165 MPa、3250 MPa、1.8%、2.2%、1060，3160 MPa，1.9%，2.2%和870。合金的σ（f）/E和H-v/3E分别为0.019-0.017和0.020-0.016，与许多块体玻璃合金的先前数据一致。结果表明，这些铁基大块非晶合金具有弹塑性变形模式。具有明显压缩塑性应变和弹塑性变形模式的高强度铁基大块非晶合金的合成为铁基大块非晶合金作为结构材料和软磁材料的未来发展提供了有利条件。
Mechanical properties of cast Fe-based bulk glassy alloy rods with compositions of (Fe0.75B0.15Si0.1)(96)Nb-4 and Fe77Ga3P9.5C4B4Si2.5 were examined by compression and Vickers hardness tests. The Young's modulus (E), yield strength (sigma(y)), fracture strength (sigma(f)), elastic strain (is an element of(e)), fracture strain (is an element of(f)), and Vickers hardness (H-v) were 175 GPa, 3165 MPa, 3250 MPa, 1.8%, 2.2%, and 1060, respectively, for the former alloy and 182 GPa, 2980 MPa, 3160 MPa, 1.9%, 2.2%, and 870, respectively, for the latter alloy. The sigma(f)/E and H-v/3E were 0.019-0.017 and 0.020-0.016, respectively, for the alloys, in agreement with the previous data for a number of bulk glassy alloys. The agreement suggests that these Fe-based bulk glassy alloys have an elastic-plastic deformation mode. The syntheses of high-strength Fe-based bulk glassy alloys with distinct compressive plastic strain and elastic-plastic deformation mode are encouraging for future development of Fe-based bulk glassy alloys as structural and soft magnetic materials.