Influence of Copper Addition on Glass Forming Ability, Thermal Stability, Structure and Magnetic Properties of Fe-Co-Based BMGs

The aim of the paper was investigation of the effect of Cu addition on glass forming ability (GFA), thermal stability, structure and magnetic properties of Fe-Co-based bulk metallic glasses (BMGs). The raw materials used in this experiment for the production of BMGs were pure Fe, Co, Cu and industrial Fe-B, Fe-Si, Fe-Nb ferroalloy. Investigations were carried out on BMGs in rods shaped with square section with side of 1.5mm. The structure of the investigated BMGs in rod form is amorphous. The addition of small amounts of Cu is effective in changing GFA and magnetic properties. The melting temperature - Tm remained almost constant for both investigated alloy. Two alloy compositions are at or very close to the eutectics, what according to ref. [1] should guarantee the best metallic glass-forming alloys. The investigated alloys have good soft magnetic properties. The successful synthesis of the Fe36.00Co36.00B19.00Si5Nb4 and Fe35.75Co35.75B18.90Si5Nb4Cu0.6 alloys with high GFA and good soft magnetic properties by using starting industrial alloys are encouraging for the future industry applications.

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Investigation of glass forming ability, thermal stability and soft magnetic properties of melt-spun Fe83P16−xSixCu1 (x=0, 1, 2, 3, 4, 5) alloy ribbons

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2013.09.089 ◽

2014 ◽

Vol 584 ◽

pp. 377-380 ◽

Cited By ~ 23

Author(s):

F.G. Chen ◽

Y.G. Wang

Keyword(s):

Thermal Stability ◽

Magnetic Properties ◽

Glass Forming Ability ◽

Soft Magnetic Properties ◽

Soft Magnetic ◽

Glass Forming ◽

Melt Spun

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Thermal Stability and Soft Magnetic Properties of Fe-Co-Ga-P-C-B Alloys with High Glass-Forming Ability.

Journal of the Japan Society of Powder and Powder Metallurgy ◽

10.2497/jjspm.49.1113 ◽

2002 ◽

Vol 49 (12) ◽

pp. 1113-1118

Author(s):

Baolong Shen ◽

Hisamichi Kimura ◽

Akihisa Inoue

Keyword(s):

Thermal Stability ◽

Magnetic Properties ◽

Glass Forming Ability ◽

Soft Magnetic Properties ◽

Soft Magnetic ◽

Glass Forming

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Glass Forming Ability, Thermal Stability, and Magnetic Properties of FeCoNiBSi Alloys with Different B Contents

Advances in Materials Science and Engineering ◽

10.1155/2018/4841025 ◽

2018 ◽

Vol 2018 ◽

pp. 1-6 ◽

Cited By ~ 1

Author(s):

Haibo Sun ◽

Yongfei Wang

Keyword(s):

Thermal Stability ◽

Magnetic Properties ◽

Annealing Temperature ◽

Amorphous Structure ◽

Glass Forming Ability ◽

Soft Magnetic Properties ◽

Soft Magnetic ◽

Glass Forming ◽

Crystallization Onset ◽

Thermal Stability Of

The dependence on the glass forming ability, magnetic property, and thermal stability of the (Fe0.39Co0.15Ni0.46)82−xB12+xSi6 (x = 0, 2, 4, and 6) alloys was investigated. The results show that the as-quenched alloy ribbons exhibit a completely amorphous structure with B content in the range of 12∼18 at.%. The initial crystallization onset temperature of the as-quenched ribbon increases with the increase of B content. When the B content is up to 14 at.%, the temperature interval between the two crystallization peaks will sharply reduce, which narrows the effective annealing range that is detrimental to improving the soft magnetic properties. Both of the Ms and Hc of the as-quenched ribbons increase first and then decrease with the increase of B content. Here, the maximum Ms of 0.90 T and low Hc of 10.2 A/m can be obtained at the B content of 14 at.%. Additionally, the (Fe0.39Co0.15Ni0.46)80B14Si6 alloy exhibits the minimum Hc of 5.9 A/m and Ms of 0.934 T at the proposed annealing temperature of 698 K for 10 min in the vacuum condition.

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