CN103834878B - A kind of Cr containing Cr amA bmB cmC dnon-crystaline amorphous metal - Google Patents
A kind of Cr containing Cr amA bmB cmC dnon-crystaline amorphous metal Download PDFInfo
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- CN103834878B CN103834878B CN201410115365.9A CN201410115365A CN103834878B CN 103834878 B CN103834878 B CN 103834878B CN 201410115365 A CN201410115365 A CN 201410115365A CN 103834878 B CN103834878 B CN 103834878B
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Abstract
The invention discloses a kind of Cr containing Cr with anti-corrosion, high strength, high rigidity, high-modulus and high glass forming ability
amA
bmB
cmC
damorphous alloy.The specific chemical composition of this alloy is designed to by atomic ratio: Cr
amA
bmB
cmC
d, the atom percentage content of each element will meet the following conditions: b is 1 ~ 60, c be 5 ~ 30, d is 0 ~ 5, and surplus is a, and a+b+c+d=100.This amorphous alloy has special theoretical and practical significance to the corrosion resistance nature of research magnesium-yttrium-transition metal base noncrystal alloy and mechanical property etc.
Description
Technical field
The present invention relates to a kind of non-crystaline amorphous metal, more particularly, refer to a kind of Cr containing Cr
amA
bmB
cmC
dnon-crystaline amorphous metal.
Background technology
Under existing processing condition, the non-crystaline amorphous metal prepared by flash set technology has unique performance because not possessing long range atomic order structure.Therefore, the exploitation of Novel amorphous alloy composition and the research of performance are become to a key areas of investigation of materials.Cr is not only a kind of solidity to corrosion element in various attack solution with self-passivation performance as a kind of transiting group metal elements, and it has again relatively high hardness, Young's modulus and fusing point simultaneously.
Therefore, a kind of Cr containing Cr of anti-corrosion, high strength, high rigidity, high-modulus, high glass forming ability is researched and developed
amA
bmB
cmC
dnon-crystaline amorphous metal has special theoretical and practical significance to the corrosion resistance nature of research magnesium-yttrium-transition metal base noncrystal alloy and mechanical property etc.
Summary of the invention
Technology of the present invention is dealt with problems: the restriction overcoming existing Cr-MA-MB-MC type non-crystaline amorphous metal glass forming ability, develops and has a kind of Cr containing Cr that maximum critical size is the high glass forming ability of 8mm
amA
bmB
cmC
dnovel amorphous alloy, specifically refers to that a kind of Cr and a series of metallic element MA, class non-metallic element MB and rare earth element MC prepare a kind of Cr containing Cr with anti-corrosion, high strength, high rigidity, high-modulus, high glass forming ability by similar differential element infinitely small
amA
bmB
cmC
dnon-crystaline amorphous metal.
Technical solution of the present invention: a kind of Cr containing Cr
amA
bmB
cmC
dnon-crystaline amorphous metal, this Cr
amA
bmB
cmC
dmiddle MA is one or more in Sc, V, Mn, Fe, Co, Ni, Cu, Al, Ga, Sn, Zr, Nb, Mo, Hf, Ta, W, MB is one or more in P, B, C, Si, and MC is one or more in Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu; Cr
amA
bmB
cmC
din non-crystaline amorphous metal, the mole percent level of each element: b is 1 ~ 60, c be 5 ~ 30, d is 0 ~ 5, and surplus is a, and a+b+c+d=100.
A kind of Cr containing Cr of the present invention
amA
bmB
cmC
dnon-crystaline amorphous metal, preferred component is Cr
25fe
25co
10mo
15c
15b
8er
2, Cr
30fe
26co
7mo
14c
15b
6y
2, Cr
44.1fe
14.7mo
14.7c
14.7b
9.8y
2, Cr
45fe
11co
7mo
14c
15b
6y
2or Cr
50fe
10co
3mo
7c
17b
11er
2.
The present invention prepares a kind of Cr containing Cr
amA
bmB
cmC
dthe method of non-crystaline amorphous metal, it includes the following step:
Step one: batching
According to Cr
amA
bmB
cmC
dnominal composition take each simple substance element, form a kind of Cr containing Cr of preparation
amA
bmB
cmC
dthe raw material of non-crystaline amorphous metal;
Described a kind of Cr containing Cr
amA
bmB
cmC
dnominal composition in the mass percent purity of element be all more than or equal to 99.9%;
Described a kind of Cr containing Cr
amA
bmB
cmC
dnominal composition in MA be one or more in Sc, V, Mn, Fe, Co, Ni, Cu, Al, Ga, Sn, Zr, Nb, Mo, Hf, Ta, W, MB is one or more in P, B, C, Si, and MC is one or more in Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu; Cr
amA
bmB
cmC
din non-crystaline amorphous metal, the mole percent level of each element: b is 1 ~ 60, c be 5 ~ 30, d is 0 ~ 5, and surplus is a, and a+b+c+d=100.
Step 2: master alloy melting ingot
Non-consumable formula vacuum arc melting furnace put into by raw material step one being weighed gained, regulates vacuum tightness≤1 × 10 in vacuum arc melting furnace
-2pa, Heating temperature is 1500 DEG C ~ 3000 DEG C, smelting time 3 ~ 20min; Under melting condition, refining makes for 1 ~ 5 time raw material melting even, takes out master alloy ingot after furnace cooling;
Step 3: prepare a kind of Cr containing Cr
amA
bmB
cmC
dnon-crystaline amorphous metal
A kind of Cr containing Cr that step 2 is prepared
amA
bmB
cmC
dit melts by induction furnace that master alloy ingot puts into quick solidification apparatus completely, by spray to cast, solidifies cooling and obtains column Cr
amA
bmB
cmC
damorphous alloy material;
Induction melting optimum configurations: during melting, the vacuum tightness of vacuum induction furnace is≤1 × 10
-1pa, induced current 250 ~ 650mA, smelting temperature is 1000 ~ 1500 DEG C, and smelting time is 1 ~ 3min;
Spray to cast pressure is 0.01 ~ 0.1MPa;
Speed of cooling is 10 ~ 10
5k/s.
Of the present invention have self-passivation in 1MHCl solution, erosion rate (1 × 10
-5mmyear
-1~ 1 × 10
-3mmyear
-1, 2 orders of magnitude lower than SUS316 stainless steel), the non-crystaline amorphous metal Cr of breaking tenacity (3.5 ~ 4.4GPa), vickers microhardness (12 ~ 14GPa), Young's modulus (210 ~ 240GPa), critical size (1 ~ 8mm)
amA
bmB
cmC
dadvantage is:
(1) the present invention devises a kind of Cr containing Cr of a kind of, high strength, high rigidity, high-modulus anti-corrosion containing the multicomponent of multiple transiting group metal elements, metalloid element and rare earth element simultaneously, high glass forming ability
amA
bmB
cmC
dnon-crystaline amorphous metal, this is theoretical and the corrosion resistance nature of practical study magnesium-yttrium-transition metal base noncrystal alloy and mechanical property provide a kind of novel material.
(2) a kind of Cr containing Cr of anti-corrosion, high strength, high rigidity, high-modulus of the present invention, high glass forming ability
amA
bmB
cmC
dnon-crystaline amorphous metal has higher glass forming ability, by flash set technology, can obtain the non-crystaline amorphous metal rod that critical diameter is 8mm to the maximum.
(3) a kind of Cr containing Cr of anti-corrosion, high strength, high rigidity, high-modulus of the present invention, high glass forming ability
amA
bmB
cmC
dnon-crystaline amorphous metal, has self-passivation in 1MHCl solution, and its corrosion potential is about 0.019v, and corrosion current density is about 0.003Amm
-2, passivation region is about 0.8v, and passive current density is about 0.019Amm
-2, erosion rate <1 × 10
-4mmyear
-1compressed rupture strength is 4.35 ± 0.05GPa about, vickers microhardness value is about 13.87 ± 0.2GPa, Young's modulus is about 236 ± 3GPa, shearing modulus 90 ± 3GPa, Bulk modulus 212 ± 3GPa, Poisson's ratio 0.315 ± 0.002, its high-corrosion resistance had and excellent mechanical property, enriched the foundation of research non-crystaline amorphous metal corrosion resisting property and mechanical property.
Accompanying drawing explanation
Fig. 1 is Cr
45fe
11co
7mo
14c
15b
6y
2the X-ray diffractogram of as cast condition 2.5mm bar sample, collection of illustrative plates is typical diffuse scattering shape diffraction peak without obvious crystalline phases diffraction peak, shows that this alloy structure is homogeneous non-crystalline state;
Fig. 2 is Cr
45fe
11co
7mo
14c
15b
6y
2the differential scanning calorimetric curve of as cast condition 2.5mm non-crystalline state bar sample, this amorphous alloy of curve display has obvious glass transformation temperature and supercooling liquid phase region, the feature intrinsic in amorphous alloy;
Fig. 3 is Cr
45fe
11co
7mo
14c
15b
6y
2the Potentiodynamic anodic polarization curve of as cast condition 2mm non-crystalline state bar sample in 1MHCl solution, this amorphous alloy of curve display has the feature of self-passivation at 1MHCl solution, low corrosion potential, corrosion current density and passive current density, wide passivation region, and until about 1.0 volts of these alloys are that transpassivation is dissolved and spot corrosion does not occur, its erosion resistance is much better than SUS316 stainless steel;
Fig. 4 is Cr
45fe
11co
7mo
14c
15b
6y
2as cast condition 2mm non-crystalline state bar sample stress under compression strain curve, curve shows that in this axial compression process, this amorphous alloy has the recoverable deformation of about 2%, without obvious viscous deformation, fracture mode is a kind of fracture mode of typical fragility amorphous alloy, and has high breaking tenacity.
Embodiment
The present invention is introduced in detail below in conjunction with drawings and the specific embodiments.But following embodiment is only limitted to explain the present invention, and protection scope of the present invention should comprise the full content of claim, is not limited only to the present embodiment.
A kind of Cr containing Cr of the present invention
amA
bmB
cmC
dnon-crystaline amorphous metal, MA is one or more in Sc, V, Mn, Fe, Co, Ni, Cu, Al, Ga, Sn, Zr, Nb, Mo, Hf, Ta, W, MB is one or more in P, B, C, Si, and MC is one or more in Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu; Cr
amA
bmB
cmC
din non-crystaline amorphous metal, the mole percent level of each element: b is 1 ~ 60, c be 5 ~ 30, d is 0 ~ 5, and surplus is a, and a+b+c+d=100.A kind of Cr containing Cr of the present invention
amA
bmB
cmC
dnon-crystaline amorphous metal, preferred component is Cr
25mA
50mB
23mC
2(end points composition), Cr
30mA
47mB
21mC
2(inter-level), Cr
44.1mA
29.4mB
24.5mC
2(inter-level), Cr
45mA
32mB
21mC
2(optimum composition) or Cr
50mA
20mB
28mC
2(end points composition).
The present invention prepares a kind of Cr containing Cr
amA
bmB
cmC
dthe method of non-crystaline amorphous metal, it includes the following step:
Step one: batching
According to Cr
amA
bmB
cmC
dnominal composition take each simple substance element, form a kind of Cr containing Cr of preparation
amA
bmB
cmC
dthe raw material of non-crystaline amorphous metal;
Described a kind of Cr containing Cr
amA
bmB
cmC
dnominal composition in the mass percent purity of element be all more than or equal to 99.9%;
Described a kind of Cr containing Cr
amA
bmB
cmC
dnominal composition in MA be one or more in Sc, V, Mn, Fe, Co, Ni, Cu, Al, Ga, Sn, Zr, Nb, Mo, Hf, Ta, W, MB is one or more in P, B, C, Si, and MC is one or more in Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu; Cr
amA
bmB
cmC
din non-crystaline amorphous metal, the mole percent level of each element: b is 1 ~ 60, c be 5 ~ 30, d is 0 ~ 5, and surplus is a, and a+b+c+d=100.
Step 2: master alloy melting ingot
Non-consumable formula vacuum arc melting furnace put into by raw material step one being weighed gained, regulates vacuum tightness≤1 × 10 in vacuum arc melting furnace
-2pa, Heating temperature is 1500 DEG C ~ 3000 DEG C, smelting time 3 ~ 20min; Under melting condition, refining makes for 1 ~ 5 time raw material melting even, takes out master alloy ingot after furnace cooling;
Step 3: prepare a kind of Cr containing Cr
amA
bmB
cmC
dnon-crystaline amorphous metal
A kind of Cr containing Cr that step 2 is prepared
amA
bmB
cmC
dit melts by induction furnace that master alloy ingot puts into quick solidification apparatus completely, by spray to cast, solidifies cooling and obtains a kind of Cr containing Cr of column
amA
bmB
cmC
damorphous alloy material;
Induction melting optimum configurations: during melting, the vacuum tightness of vacuum induction furnace is≤1 × 10
-1pa, induced current 250 ~ 650mA, smelting temperature is 1000 ~ 1500 DEG C, and smelting time is 1 ~ 3min;
Spray to cast pressure is 0.01 ~ 0.1MPa;
Speed of cooling is 10 ~ 10
5k/s.
Embodiment 1
Preparation has the Cr of optimal synthesis performance of anti-corrosion, high strength, high rigidity, high-modulus, high glass forming ability, high-Cr
45fe
11co
7mo
14c
15b
6y
2the step of non-crystaline amorphous metal has:
Step one: batching
The Cr of 100g processed
45fe
11co
7mo
14c
15b
6y
2raw material needed for non-crystaline amorphous metal:
Cr is 45.587g, Fe be 11.969g, Co be 8.037g, Mo be 26.169g, C be 3.51g, B be 1.264g and Y is 3.464g;
The mass percent purity of each element chosen is 99.9%;
Step 2: master alloy melting ingot
Non-consumable formula vacuum arc melting furnace put into by raw material step one being weighed gained, regulates vacuum tightness≤1 × 10 in vacuum arc melting furnace
-2pa, Heating temperature is 1500 DEG C ~ 3000 DEG C, smelting time 3 ~ 20min; Under melting condition, refining makes for 1 ~ 5 time raw material melting even, takes out master alloy ingot after furnace cooling;
Step 3: preparation Cr
45fe
11co
7mo
14c
15b
6y
2non-crystaline amorphous metal
The Cr that step 2 is prepared
45fe
11co
7mo
14c
15b
6y
2it melts by induction furnace that master alloy ingot puts into quick solidification apparatus completely, by spray to cast, solidifies cooling and obtains column Cr
45fe
11co
7mo
14c
15b
6y
2amorphous alloy material;
Induction melting optimum configurations: during melting, the vacuum tightness of vacuum induction furnace is≤1 × 10
-1pa, induced current 250 ~ 650mA, smelting temperature is 1000 ~ 1500 DEG C, and smelting time is 1 ~ 3min; Spray to cast pressure is 0.01 ~ 0.1MPa; Speed of cooling is 10 ~ 10
5k/s.
By Cr obtained for embodiment 1
45fe
11co
7mo
14c
15b
6y
2cast alloy bar, through X-ray diffraction (as shown in Figure 1), differential scanning calorimeter (as shown in Figure 2), electrochemistry experiment (as shown in Figure 3), Compressive Mechanical experimental contrast analysis (as shown in Figure 4), draws: it can form the non-crystaline amorphous metal bar that critical diameter is 2.5mm; Glass transformation temperature 698 DEG C, crystallization temperature 736 DEG C; In 1MHCl solution, have self-passivation, its corrosion potential is about 0.019v, and corrosion current density is about 0.003Amm
-2, passivation region is about 0.8v, and passive current density is about 0.019Amm
-2, erosion rate <1 × 10
-4mmyear
-1, compressed rupture strength is 4.35 ± 0.05GPa about, and vickers microhardness value is about 13.87 ± 0.2GPa, and Young's modulus is about 236 ± 3GPa, shearing modulus 90 ± 3GPa, Bulk modulus 212 ± 3GPa, Poisson's ratio 0.315 ± 0.002.There is obvious glass transformation temperature T
g=698 DEG C, supercooled liquid phase interval is 38 DEG C (temperature heads between crystallization temperature and glass transformation temperature).
In the present invention, adopt the method system identical with embodiment 1 as the alloying constituent of table 1.Its obtained product, through X-ray diffraction analysis, is single amorphous structure.
Embodiment 2
Preparation has anti-corrosion, high strength, high rigidity, high-modulus, maximum glass Forming ability Cr
30fe
26co
7mo
14c
15b
6y
2the step of non-crystaline amorphous metal has:
Step one: batching
The Cr of 100g processed
30fe
26co
7mo
14c
15b
6y
2raw material needed for non-crystaline amorphous metal:
Cr is 30.053g, Fe be 27.975g, Co be 7.948g, Mo be 25.878g, C be 3.471g, B be 1.25g and Y is 3.426g;
The mass percent purity of each element chosen is 99.9%;
Step 2: master alloy melting ingot
Non-consumable formula vacuum arc melting furnace put into by raw material step one being weighed gained, regulates vacuum tightness≤1 × 10 in vacuum arc melting furnace
-2pa, Heating temperature is 1500 DEG C ~ 3000 DEG C, smelting time 3 ~ 20min; Under melting condition, refining makes for 1 ~ 5 time raw material melting even, takes out master alloy ingot after furnace cooling;
Step 3: preparation Cr
30fe
26co
7mo
14c
15b
6y
2non-crystaline amorphous metal
The Cr that step 2 is prepared
30fe
26co
7mo
14c
15b
6y
2it melts by induction furnace that master alloy ingot puts into quick solidification apparatus completely, by spray to cast, solidifies cooling and obtains column Cr
30fe
26co
7mo
14c
15b
6y
2amorphous alloy material;
Induction melting optimum configurations: during melting, the vacuum tightness of vacuum induction furnace is≤1 × 10
-1pa, induced current 250 ~ 650mA, smelting temperature is 1000 ~ 1500 DEG C, and smelting time is 1 ~ 3min; Spray to cast pressure is 0.01 ~ 0.1MPa; Speed of cooling is 10 ~ 10
5k/s.
By Cr obtained for embodiment 2
30fe
26co
7mo
14c
15b
6y
2cast alloy bar, through X-ray diffraction, differential scanning calorimeter, electrochemistry experiment, Compressive Mechanical experimental contrast analysis, draws: it can form the non-crystaline amorphous metal bar that critical diameter is 3mm; Glass transformation temperature 636 DEG C, crystallization temperature 683 DEG C; In 1MHCl solution, have self-passivation, its corrosion potential about-0.02v, corrosion current density is about 0.004Amm
-2, passivation region is about 0.8v, and passive current density is about 0.025Amm
-2, erosion rate <1 × 10
-4mmyear
-1, compressed rupture strength is 3.91 ± 0.05GPa about, and vickers microhardness value is about 12.96 ± 0.16GPa, and Young's modulus is about 227 ± 2GPa, shearing modulus 86 ± 2GPa, Bulk modulus 206 ± 3GPa, Poisson's ratio 0.316 ± 0.002.There is obvious glass transformation temperature T
g=636 DEG C, supercooled liquid phase interval is 47 DEG C (temperature heads between crystallization temperature and glass transformation temperature).
Embodiment 3
Preparation has anti-corrosion, maximum intensity, high rigidity, high-modulus Cr
44.1fe
14.7mo
14.7c
14.7b
9.8y
2the step of non-crystaline amorphous metal has:
Step one: batching
The Cr of 100g processed
44.1fe
14.7mo
14.7c
14.7b
9.8y
2raw material needed for non-crystaline amorphous metal:
Cr is 46.002g, Fe be 16.47g, Mo be 28.293g, C be 3.542g, B be 2.125g and Y is 3.567g;
The mass percent purity of each element chosen is 99.9%;
Step 2: master alloy melting ingot
Non-consumable formula vacuum arc melting furnace put into by raw material step one being weighed gained, regulates vacuum tightness≤1 × 10 in vacuum arc melting furnace
-2pa, Heating temperature is 1500 DEG C ~ 3000 DEG C, smelting time 3 ~ 20min; Under melting condition, refining makes for 1 ~ 5 time raw material melting even, takes out master alloy ingot after furnace cooling;
Step 3: preparation Cr
44.1fe
14.7mo
14.7c
14.7b
9.8y
2non-crystaline amorphous metal
The Cr that step 2 is prepared
44.1fe
14.7mo
14.7c
14.7b
9.8y
2it melts by induction furnace that master alloy ingot puts into quick solidification apparatus completely, by spray to cast, solidifies cooling and obtains column Cr
44.1fe
14.7mo
14.7c
14.7b
9.8y
2amorphous alloy material; Induction melting optimum configurations: during melting, the vacuum tightness of vacuum induction furnace is≤1 × 10
-1pa, induced current 250 ~ 650mA, smelting temperature is 1000 ~ 1500 DEG C, and smelting time is 1 ~ 3min; Spray to cast pressure is 0.01 ~ 0.1MPa; Speed of cooling is 10 ~ 10
5k/s.
By Cr obtained for embodiment 3
44.1fe
14.7mo
14.7c
14.7b
9.8y
2cast alloy bar, through X-ray diffraction, differential scanning calorimeter, electrochemistry experiment, Compressive Mechanical experimental contrast analysis, draws: it can form the non-crystaline amorphous metal bar that critical diameter is 1mm; Glass transformation temperature 727 DEG C, crystallization temperature 795 DEG C; In 1MHCl solution, have self-passivation, its corrosion potential about-0.025v, corrosion current density is about 0.003Amm
-2, passivation region is about 0.8v, and passive current density is about 0.04Amm
-2, erosion rate <1 × 10
-4mmyear
-1, compressed rupture strength is 4.3 ± 0.04GPa about, and vickers microhardness value is about 14.15 ± 0.15GPa, and Young's modulus is about 249 ± 3GPa, shearing modulus 95 ± 2GPa, Bulk modulus 221 ± 3GPa, Poisson's ratio 0.312 ± 0.003.There is obvious glass transformation temperature T
g=727 DEG C, supercooled liquid phase interval is 68 DEG C (temperature heads between crystallization temperature and glass transformation temperature)
Embodiment 4
Preparation has the Cr of anti-corrosion, high strength, high rigidity, high-modulus, minimum chromium content
25fe
25co
10mo
15c
15b
8er
2the step of non-crystaline amorphous metal has:
Step one: batching
The Cr of 100g processed
25fe
25co
10mo
15c
15b
8er
2raw material needed for non-crystaline amorphous metal:
Cr is 24.408g, Fe be 26.216g, Co be 11.066g, Mo be 27.022g, C be 3.383g, B be 1.624g and Er is 6.281g;
The mass percent purity of each element chosen is 99.9%;
Step 2: master alloy melting ingot
Non-consumable formula vacuum arc melting furnace put into by raw material step one being weighed gained, regulates vacuum tightness≤1 × 10 in vacuum arc melting furnace
-2pa, Heating temperature is 1500 DEG C ~ 3000 DEG C, smelting time 3 ~ 20min; Under melting condition, refining makes for 1 ~ 5 time raw material melting even, takes out master alloy ingot after furnace cooling;
Step 3: preparation Cr
25fe
25co
10mo
15c
15b
8er
2non-crystaline amorphous metal
The Cr that step 2 is prepared
25fe
25co
10mo
15c
15b
8er
2it melts by induction furnace that master alloy ingot puts into quick solidification apparatus completely, by spray to cast, solidifies cooling and obtains column Cr
25fe
25co
10mo
15c
15b
8er
2amorphous alloy material;
Induction melting optimum configurations: during melting, the vacuum tightness of vacuum induction furnace is≤1 × 10
-1pa, induced current 250 ~ 650mA, smelting temperature is 1000 ~ 1500 DEG C, and smelting time is 1 ~ 3min; Spray to cast pressure is 0.01 ~ 0.1MPa; Speed of cooling is 10 ~ 10
5k/s.
By Cr obtained for embodiment 4
25fe
25co
10mo
15c
15b
8er
2cast alloy bar, through X-ray diffraction, differential scanning calorimeter, electrochemistry experiment, Compressive Mechanical experimental contrast analysis, draws: it can form the non-crystaline amorphous metal bar that critical diameter is 2mm; Glass transformation temperature 580 DEG C, crystallization temperature 633 DEG C; In 1MHCl solution, have self-passivation, its corrosion potential about-0.028v, corrosion current density is about 0.007Amm
-2, passivation region is about 0.75v, and passive current density is about 0.18Amm
-2, erosion rate 1 × 10
-3mmyear
-1, compressed rupture strength is 3.55 ± 0.04GPa about, and vickers microhardness value is about 12.37 ± 0.06GPa, and Young's modulus is about 215 ± 3GPa, shearing modulus 82 ± 2GPa, Bulk modulus 197 ± 3GPa, Poisson's ratio 0.314 ± 0.003.There is obvious glass transformation temperature T
g=580 DEG C, supercooled liquid phase interval is 53 DEG C (temperature heads between crystallization temperature and glass transformation temperature)
Embodiment 5
Preparation has the Cr of anti-corrosion, high strength, high rigidity, high-modulus, the highest chromium content
50fe
10co
3mo
7c
17b
11er
2the step of non-crystaline amorphous metal has:
Step one: batching
The Cr of 100g processed
50fe
10co
3mo
7c
17b
11er
2raw material needed for non-crystaline amorphous metal:
Cr is 55.739g, Fe be 11.973g, Co be 3.79g, Mo be 14.398g, C be 4.378g, B be 2.55g and Er is 7.172g;
The mass percent purity of each element chosen is 99.9%;
Step 2: master alloy melting ingot
Non-consumable formula vacuum arc melting furnace put into by raw material step one being weighed gained, regulates vacuum tightness≤1 × 10 in vacuum arc melting furnace
-2pa, Heating temperature is 1500 DEG C ~ 3000 DEG C, smelting time 3 ~ 20min; Under melting condition, refining makes for 1 ~ 5 time raw material melting even, takes out master alloy ingot after furnace cooling;
Step 3: preparation Cr
50fe
10co
3mo
7c
17b
11er
2non-crystaline amorphous metal
The Cr that step 2 is prepared
50fe
10co
3mo
7c
17b
11er
2it melts by induction furnace that master alloy ingot puts into quick solidification apparatus completely, by spray to cast, solidifies cooling and obtains column Cr
50fe
10co
3mo
7c
17b
11er
2amorphous alloy material;
Induction melting optimum configurations: during melting, the vacuum tightness of vacuum induction furnace is≤1 × 10
-1pa, induced current 250 ~ 650mA, smelting temperature is 1000 ~ 1500 DEG C, and smelting time is 1 ~ 3min; Spray to cast pressure is 0.01 ~ 0.1MPa; Speed of cooling is 10 ~ 10
5k/s.
By Cr obtained for embodiment 5
50fe
10co
3mo
7c
17b
11er
2cast alloy bar, through X-ray diffraction, differential scanning calorimeter, electrochemistry experiment, Compressive Mechanical experimental contrast analysis, draws: it can form the non-crystaline amorphous metal bar that critical diameter is 1mm; Glass transformation temperature 720 DEG C, crystallization temperature 751 DEG C; In 1MHCl solution, have self-passivation, its corrosion potential about-0.035v, corrosion current density is about 0.01Amm
-2, passivation region is about 0.75v, and passive current density is about 0.06Amm
-2, erosion rate 1 × 10
-4mmyear
-1, compressed rupture strength is 4.1 ± 0.04GPa about, and vickers microhardness value is about 14.37 ± 0.04GPa, and Young's modulus is about 218 ± 3GPa, shearing modulus 85 ± 2GPa, Bulk modulus 201 ± 3GPa, Poisson's ratio 0.314 ± 0.003.There is obvious glass transformation temperature T
g=720 DEG C, supercooled liquid phase interval is 31 DEG C (temperature heads between crystallization temperature and glass transformation temperature)
It should be noted that, according to the various embodiments described above of the present invention, those skilled in the art are the four corners that can realize independent claim of the present invention and appurtenance completely, implementation procedure and the same the various embodiments described above of method; And non-elaborated part of the present invention belongs to techniques well known.
The above; be only part embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those skilled in the art are in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.
Claims (4)
1. the Cr containing Cr
amA
bmB
cmC
dnon-crystaline amorphous metal, is characterized in that: described Cr
amA
bmB
cmC
dmiddle MA is one or more in Sc, V, Mn, Fe, Co, Ni, Cu, Al, Ga, Sn, Zr, Nb, Mo, Hf, Ta, W, MB is one or more in P, B, C, Si, and MC is one or more in Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu; Cr
amA
bmB
cmC
din non-crystaline amorphous metal, the mole percent level of each element: b is 20 ~ 50, c be 15 ~ 25, d is 1 ~ 3, and surplus is a, and a+b+c+d=100.
2. a kind of Cr containing Cr according to claim 1
amA
bmB
cmC
dnon-crystaline amorphous metal, is characterized in that: described Cr
amA
bmB
cmC
damorphous alloy component is Cr
25mA
50mB
23mC
2, Cr
30mA
47mB
21mC
2, Cr
44.1mA
29.4mB
24.5mC
2, Cr
45mA
32mB
21mC
2or Cr
50mA
20mB
28mC
2.
3. a kind of Cr containing Cr according to claim 1
amA
bmB
cmC
dnon-crystaline amorphous metal, is characterized in that: described Cr
amA
bmB
cmC
damorphous alloy component is Cr
45fe
11co
7mo
14c
15b
6y
2.
4. prepare the Cr containing Cr for one kind
amA
bmB
cmC
dthe method of non-crystaline amorphous metal, is characterized in that performing step is as follows:
Step one: batching
According to a kind of Cr containing Cr according to claim 1
amA
bmB
cmC
dcomposition take each simple substance element, form a kind of Cr containing Cr of preparation
amA
bmB
cmC
dthe raw material of non-crystaline amorphous metal;
Described a kind of Cr containing Cr
amA
bmB
cmC
dnominal composition in the mass percent purity of element be all more than or equal to 99.9%;
Described a kind of Cr containing Cr
amA
bmB
cmC
dnominal composition in MA be one or more in Sc, V, Mn, Fe, Co, Ni, Cu, Al, Ga, Sn, Zr, Nb, Mo, Hf, Ta, W, MB is one or more in P, B, C, Si, and MC is one or more in Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu; A kind of Cr containing Cr
amA
bmB
cmC
din non-crystaline amorphous metal, the mole percent level of each element: b is 20 ~ 50, c be 15 ~ 25, d is 1 ~ 3, and surplus is a, and a+b+c+d=100;
Step 2: master alloy melting ingot
Non-consumable formula vacuum arc melting furnace put into by raw material step one being weighed gained, regulates vacuum tightness≤1 × 10 in vacuum arc melting furnace
-2pa, Heating temperature is 1500 DEG C ~ 3000 DEG C, smelting time 3 ~ 20min; Under melting condition, refining makes for 1 ~ 5 time raw material melting even, takes out master alloy ingot after furnace cooling;
Step 3: prepare a kind of Cr containing Cr
amA
bmB
cmC
dnon-crystaline amorphous metal
A kind of Cr containing Cr that step 2 is prepared
amA
bmB
cmC
dit melts by induction furnace that master alloy ingot puts into quick solidification apparatus completely, by spray to cast, solidifies cooling and obtains a kind of Cr containing Cr of column
amA
bmB
cmC
damorphous alloy material;
Induction melting optimum configurations: during melting, the vacuum tightness of vacuum induction furnace is≤1 × 10
-1pa, induced current 250 ~ 650mA, smelting temperature is 1000 ~ 1500 DEG C, and smelting time is 1 ~ 3min;
Spray to cast pressure is 0.01 ~ 0.1MPa;
Speed of cooling is 10 ~ 10
5k/s.
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CN106636979B (en) * | 2016-12-05 | 2018-01-23 | 大连理工大学 | A kind of Cr Fe Ni base block amorphous alloys with excellent corrosion resistance energy and preparation method thereof |
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