WO2020000608A1 - 一种TiCrMnFe基环保材料 - Google Patents

一种TiCrMnFe基环保材料 Download PDF

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Publication number
WO2020000608A1
WO2020000608A1 PCT/CN2018/101856 CN2018101856W WO2020000608A1 WO 2020000608 A1 WO2020000608 A1 WO 2020000608A1 CN 2018101856 W CN2018101856 W CN 2018101856W WO 2020000608 A1 WO2020000608 A1 WO 2020000608A1
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ticrmnfe
heat treatment
doped
alloy
earth
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PCT/CN2018/101856
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English (en)
French (fr)
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邵鹏
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邵鹏
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/06—Alloys based on chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/045—Alloys based on refractory metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2202/00—Physical properties
    • C22C2202/04—Hydrogen absorbing

Definitions

  • the invention relates to the technical field of new energy materials, in particular to a TiCrMnFe-based environmental protection material.
  • Material adsorption hydrogen storage is one of the methods of physical hydrogen storage.
  • the research of physical adsorption hydrogen storage mainly includes two major types of materials: one is carbon-based materials, including activated carbon, carbon nanotubes, etc .; the other is metal organic frameworks (MOFs).
  • the specific surface area of activated carbon affects its hydrogen storage performance. The larger the specific surface area, the larger the hydrogen storage capacity.
  • Carbon nanotubes have a larger specific surface area than activated carbon, have a large number of micropores, and have a relatively large hydrogen adsorption capacity.
  • Metal-organic framework complexes use a metal ion as a connection point and an organic ligand as a support to form a 3D extension.
  • the pore structure is used to realize hydrogen absorption and desorption. Studies have found that MOFs have a larger hydrogen storage capacity than other carbon-based hydrogen storage materials at 77K, and MOFs must have small pore sizes and large specific surface areas to have good hydrogen storage properties.
  • the composition controls the structure and shape of the pores, so that MOFs have a suitable pore size and a very high specific surface area. They will become a very promising hydrogen storage material.
  • the purpose of the present invention is to provide a TiCrMnFe-based environmental protection material, thereby overcoming the disadvantages of the prior art.
  • the present invention provides a TiCrMnFe-based environmental protection material, which is characterized in that the TiCrMnFe-based environmental protection material is prepared by the following method: providing Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials; The chemical formula is used to weigh Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials; the weighed Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials are subjected to primary vacuum melting to obtain primary TiCrMnFe Alloy ingots; crushing primary TiCrMnFe alloy ingots; single-roll quenching of primary TiCrMnFe alloy ingots after crushing to obtain rare-earth-doped TiCrMnFe alloy strips; first heat treatment of rare-earth-doped TiCrMnFe alloy strips; heat treatment The subsequent rare-earth-doped TiCrMnFe alloy strip was ball-milled to obtain
  • the primary vacuum melting process is as follows: the vacuum degree is lower than 0.01 Pa, the melting time is 50-60 minutes, and the alloy ingot is inverted once every 100-200s during the melting process.
  • the single-roller quenching is specifically: the vacuum pressure of the vacuum chamber is lower than 0.01 Pa, the rotation speed of the copper roller is 5000-5500 r / min, the spray pressure is 0.5-1 MPa, and the nozzle diameter is 1-1.5 mm.
  • the first heat treatment of the rare-earth-doped TiCrMnFe alloy strip is specifically: the heat treatment pressure is lower than 0.01Pa, the heat treatment temperature is 600-700 ° C, the heat treatment time is 5-7h, and the heating rate is 20 -30 ° C / min.
  • the ball milling of the rare earth-doped TiCrMnFe alloy strip after the heat treatment is specifically: the ball milling atmosphere is an argon atmosphere, the ball milling speed is 1500-2000r / min, the ball milling time is 3-4h, and the ball material is The ratio is 5: 1-8: 1.
  • the ball milling atmosphere is an argon atmosphere
  • the ball milling speed is 1500-2000r / min
  • the ball milling time is 3-4h
  • the ball material is The ratio is 5: 1-8: 1.
  • each ball is milled for 60-70min
  • the ball milling is suspended for 4-5min
  • the temperature in the ball mill tank is controlled below 400 ° C during the ball milling.
  • the second heat treatment of the rare-earth-doped TiCrMnFe alloy powder is specifically: the heat treatment atmosphere is hydrogen, the heat treatment temperature is 400-500 ° C, the heat treatment time is 20-30min, and the heating rate is 20-30 ° C. / min.
  • the hot-pressing sintering of the rare-earth-doped TiCrMnFe alloy powder subjected to the second heat treatment is specifically: the hot-pressing air pressure is lower than 0.03Pa, the hot-pressing temperature is 1350-1380 ° C, and the hot-pressing pressure is 10 -20MPa, hot pressing time is 20-30min.
  • the present invention has the following beneficial effects: compared with the rare earth-based hydrogen storage material, the TiCrMnFe-based hydrogen storage material has a lower cost and a richer source of raw materials. Compared with coordination hydride hydrogen storage materials, TiCrMnFe-based hydrogen storage materials are more stable in chemical properties and can work in complex environments. However, for TiCrMnFe-based hydrogen storage materials, the biggest problem is that the preparation process is simple. Generally, in the prior art, TiCrMnFe-based hydrogen storage materials are prepared by one-step vacuum melting.
  • the present invention develops a method for preparing a TiCrMnFe-based hydrogen storage material.
  • the method of the present invention has more steps and complicated processes, it is used in industrial production. The above steps do not significantly increase the manufacturing cost of the alloy.
  • the method designed by the present invention can greatly promote the uniformity of the alloy composition, the method of the present invention allows more doping on the basis of the original alloy to form An alloy with better performance and stronger hydrogen storage capacity.
  • TiCrMnFe-based environmentally friendly materials are prepared by the following methods: provide Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials; weigh Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials according to a preset chemical formula Weigh; Ti, Cr, Mn, La, Ce, Gd and Fe metal raw materials are subjected to primary vacuum melting to obtain primary TiCrMnFe alloy ingots; primary TiCrMnFe alloy ingots are crushed; primary TiCrMnFe alloy ingots after crushed are subjected to Single-roller quenching to obtain rare-earth-doped TiCrMnFe alloy strips; first heat treatment of rare-earth-doped TiCrMnFe alloy strips; ball milling of rare-earth-doped TiCrMnFe alloy strips after heat treatment to obtain rare-earth-doped TiCrMnFe alloys Powder; performing a second heat treatment on the rare-earth-d
  • the primary vacuum melting process is as follows: the vacuum degree is less than 0.01 Pa, and the melting time is 50 minutes. During the melting process, the alloy ingot is inverted once every 100 seconds of melting.
  • the single roll quenching is specifically: the vacuum pressure of the vacuum chamber is less than 0.01 Pa, the rotation speed of the copper roll is 5000 r / min, the spray pressure is 0.5 MPa, and the nozzle diameter is 1 mm.
  • the first heat treatment of the rare-earth-doped TiCrMnFe alloy strip is specifically: the heat treatment pressure is lower than 0.01 Pa, the heat treatment temperature is 600 ° C., the heat treatment time is 5 h, and the heating rate is 20 ° C./min.
  • the ball milling of the rare-earth-doped TiCrMnFe alloy strip after heat treatment is as follows: the ball milling atmosphere is argon, the ball milling speed is 1500r / min, the ball milling time is 3h, and the ball-to-material ratio is 5: 1. 60min, suspended the ball milling for 4min, and controlled the temperature in the ball milling tank below 400 °C during the ball milling.
  • the second heat treatment of the rare-earth-doped TiCrMnFe alloy powder is specifically: the heat treatment atmosphere is hydrogen, the heat treatment temperature is 400 ° C., the heat treatment time is 20 min, and the heating rate is 20 ° C./min.
  • the hot-pressing sintering of the rare-earth-doped TiCrMnFe alloy powder after the second heat treatment is specifically: the hot-pressing pressure is lower than 0.03Pa, the hot-pressing temperature is 1350 ° C, the hot-pressing pressure is 10MPa, and the hot-pressing time is 20min.
  • TiCrMnFe-based environmentally friendly materials are prepared by the following methods: provide Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials; weigh Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials according to a preset chemical formula Weigh; Ti, Cr, Mn, La, Ce, Gd and Fe metal raw materials are subjected to primary vacuum melting to obtain primary TiCrMnFe alloy ingots; primary TiCrMnFe alloy ingots are crushed; primary TiCrMnFe alloy ingots after crushed are subjected to Single-roller quenching to obtain rare-earth-doped TiCrMnFe alloy strips; first heat treatment of rare-earth-doped TiCrMnFe alloy strips; ball milling of rare-earth-doped TiCrMnFe alloy strips after heat treatment to obtain rare-earth-doped TiCrMnFe alloys Powder; performing a second heat treatment on the rare-earth-d
  • the primary vacuum melting process is as follows: the vacuum degree is less than 0.01 Pa, and the melting time is 60 minutes. In the melting process, the alloy ingot is inverted once every 200 s of melting.
  • the single roll quenching is specifically: the vacuum pressure of the vacuum chamber is less than 0.01 Pa, the rotation speed of the copper roll is 5500 r / min, the spray pressure is 1 MPa, and the nozzle diameter is 1.5 mm.
  • the first heat treatment of the rare-earth-doped TiCrMnFe alloy strip is specifically: the heat treatment pressure is lower than 0.01 Pa, the heat treatment temperature is 700 ° C., the heat treatment time is 7 h, and the heating rate is 30 ° C./min.
  • the ball milling of the rare-earth-doped TiCrMnFe alloy strip after heat treatment is as follows: the ball milling atmosphere is an argon atmosphere, the ball milling speed is 2000 r / min, the ball milling time is 4 h, and the ball-to-material ratio is 8: 1. 70min, suspend ball milling for 5min, control the temperature in the ball mill tank below 400 °C during the ball milling.
  • the second heat treatment of the rare-earth-doped TiCrMnFe alloy powder is specifically: the heat treatment atmosphere is hydrogen, the heat treatment temperature is 500 ° C., the heat treatment time is 30 min, and the heating rate is 30 ° C./min.
  • the hot-pressing sintering of the rare-earth-doped TiCrMnFe alloy powder after the second heat treatment is specifically: the hot-pressing pressure is lower than 0.03Pa, the hot-pressing temperature is 1380 ° C, the hot-pressing pressure is 20MPa, and the hot-pressing time is 30min.
  • TiCrMnFe-based environmentally friendly materials are prepared by the following methods: provide Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials; weigh Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials according to a preset chemical formula Weigh; Ti, Cr, Mn, La, Ce, Gd and Fe metal raw materials are subjected to primary vacuum melting to obtain primary TiCrMnFe alloy ingots; primary TiCrMnFe alloy ingots are crushed; primary TiCrMnFe alloy ingots after crushed are subjected to Single-roller quenching to obtain rare-earth-doped TiCrMnFe alloy strips; first heat treatment of rare-earth-doped TiCrMnFe alloy strips; ball milling of rare-earth-doped TiCrMnFe alloy strips after heat treatment to obtain rare-earth-doped TiCrMnFe alloys Powder; performing a second heat treatment on the rare-earth-d
  • the primary vacuum melting process is as follows: the vacuum degree is less than 0.01 Pa, and the melting time is 55 minutes. In the melting process, the alloy ingot is inverted once every 150 s of melting.
  • the single roll quenching is specifically as follows: the vacuum chamber air pressure is lower than 0.01Pa, the copper roll speed is 5300r / min, the spray air pressure is 0.8MPa, and the nozzle diameter is 1.2mm.
  • the first heat treatment of the rare-earth-doped TiCrMnFe alloy strip is specifically: the heat treatment pressure is lower than 0.01 Pa, the heat treatment temperature is 650 ° C., the heat treatment time is 6 h, and the heating rate is 25 ° C./min.
  • the ball milling of the rare-earth-doped TiCrMnFe alloy strip after heat treatment is as follows: the ball milling atmosphere is argon, the ball milling speed is 1800r / min, the ball milling time is 3.5h, and the ball-to-material ratio is 6: 1. The ball milling was 65 minutes, the ball milling was suspended for 4.5 minutes, and the temperature in the ball milling tank was controlled below 400 ° C during the ball milling.
  • the second heat treatment of the rare-earth-doped TiCrMnFe alloy powder is specifically: the heat treatment atmosphere is hydrogen, the heat treatment temperature is 450 ° C., the heat treatment time is 25 min, and the heating rate is 25 ° C./min.
  • the hot-pressing sintering of the rare-earth-doped TiCrMnFe alloy powder subjected to the second heat treatment is as follows: the hot-pressing air pressure is lower than 0.03Pa, the hot-pressing temperature is 1370 ° C., the hot-pressing pressure is 15 MPa, and the hot-pressing time is 25 min.
  • TiCrMnFe-based environmentally friendly materials are prepared by the following methods: provide Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials; weigh Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials according to a preset chemical formula Weigh; Ti, Cr, Mn, La, Ce, Gd and Fe metal raw materials are subjected to primary vacuum melting to obtain primary TiCrMnFe alloy ingots; primary TiCrMnFe alloy ingots are crushed; primary TiCrMnFe alloy ingots after crushed are subjected to Single-roller quenching to obtain rare-earth-doped TiCrMnFe alloy strips; first heat treatment of rare-earth-doped TiCrMnFe alloy strips; ball milling of rare-earth-doped TiCrMnFe alloy strips after heat treatment to obtain rare-earth-doped TiCrMnFe alloys Powder; performing a second heat treatment on the rare-earth-d
  • the primary vacuum melting process is as follows: the vacuum degree is less than 0.01 Pa, and the melting time is 40 minutes. In the melting process, the alloy ingot is inverted once every 50s of melting.
  • the single roll quenching is specifically: the vacuum pressure of the vacuum chamber is less than 0.01 Pa, the rotation speed of the copper roll is 6000 r / min, the spray pressure is 2 MPa, and the nozzle diameter is 2 mm.
  • the first heat treatment of the rare-earth-doped TiCrMnFe alloy strip is specifically: the heat treatment pressure is lower than 0.01 Pa, the heat treatment temperature is 650 ° C., the heat treatment time is 6 h, and the heating rate is 25 ° C./min.
  • the ball milling of the rare-earth-doped TiCrMnFe alloy strip after heat treatment is as follows: the ball milling atmosphere is argon, the ball milling speed is 1800r / min, the ball milling time is 3.5h, and the ball-to-material ratio is 6: 1. The ball milling was 65 minutes, the ball milling was suspended for 4.5 minutes, and the temperature in the ball milling tank was controlled below 400 ° C during the ball milling.
  • the second heat treatment of the rare-earth-doped TiCrMnFe alloy powder is specifically: the heat treatment atmosphere is hydrogen, the heat treatment temperature is 450 ° C., the heat treatment time is 25 min, and the heating rate is 25 ° C./min.
  • the hot-pressing sintering of the rare-earth-doped TiCrMnFe alloy powder subjected to the second heat treatment is as follows: the hot-pressing air pressure is lower than 0.03Pa, the hot-pressing temperature is 1370 ° C., the hot-pressing pressure is 15 MPa, and the hot-pressing time is 25 min.
  • TiCrMnFe-based environmentally friendly materials are prepared by the following methods: provide Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials; weigh Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials according to a preset chemical formula Weigh; Ti, Cr, Mn, La, Ce, Gd and Fe metal raw materials are subjected to primary vacuum melting to obtain primary TiCrMnFe alloy ingots; primary TiCrMnFe alloy ingots are crushed; primary TiCrMnFe alloy ingots after crushed are subjected to Single-roller quenching to obtain rare-earth-doped TiCrMnFe alloy strips; first heat treatment of rare-earth-doped TiCrMnFe alloy strips; ball milling of rare-earth-doped TiCrMnFe alloy strips after heat treatment to obtain rare-earth-doped TiCrMnFe alloys Powder; performing a second heat treatment on the rare-earth-d
  • the primary vacuum melting process is as follows: the vacuum degree is less than 0.01 Pa, and the melting time is 55 minutes. In the melting process, the alloy ingot is inverted once every 150 s of melting.
  • the single roll quenching is specifically as follows: the vacuum chamber air pressure is lower than 0.01Pa, the copper roll speed is 5300r / min, the spray air pressure is 0.8MPa, and the nozzle diameter is 1.2mm.
  • the first heat treatment of the rare-earth-doped TiCrMnFe alloy strip is specifically: the heat treatment pressure is lower than 0.01 Pa, the heat treatment temperature is 800 ° C., the heat treatment time is 4 h, and the heating rate is 50 ° C./min.
  • the ball milling of the rare-earth-doped TiCrMnFe alloy strip after the heat treatment is as follows: the ball milling atmosphere is an argon atmosphere, the ball milling speed is 1000 r / min, the ball milling time is 5 h, and the ball-to-material ratio is 10: 1. 80min, suspended the ball milling for 10min, the temperature in the ball milling tank is not controlled during the ball milling.
  • the second heat treatment of the rare-earth-doped TiCrMnFe alloy powder is specifically: the heat treatment atmosphere is hydrogen, the heat treatment temperature is 450 ° C., the heat treatment time is 25 min, and the heating rate is 25 ° C./min.
  • the hot-pressing sintering of the rare-earth-doped TiCrMnFe alloy powder subjected to the second heat treatment is as follows: the hot-pressing air pressure is lower than 0.03Pa, the hot-pressing temperature is 1370 ° C., the hot-pressing pressure is 15 MPa, and the hot-pressing time is 25 min.
  • TiCrMnFe-based environmentally friendly materials are prepared by the following methods: provide Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials; weigh Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials according to a preset chemical formula Weigh; Ti, Cr, Mn, La, Ce, Gd and Fe metal raw materials are subjected to primary vacuum melting to obtain primary TiCrMnFe alloy ingots; primary TiCrMnFe alloy ingots are crushed; primary TiCrMnFe alloy ingots after crushed are subjected to Single-roller quenching to obtain rare-earth-doped TiCrMnFe alloy strips; first heat treatment of rare-earth-doped TiCrMnFe alloy strips; ball milling of rare-earth-doped TiCrMnFe alloy strips after heat treatment to obtain rare-earth-doped TiCrMnFe alloys Powder; performing a second heat treatment on the rare-earth-d
  • the primary vacuum melting process is as follows: the vacuum degree is less than 0.01 Pa, and the melting time is 55 minutes. In the melting process, the alloy ingot is inverted once every 150 s of melting.
  • the single roll quenching is specifically as follows: the vacuum chamber air pressure is lower than 0.01Pa, the copper roll speed is 5300r / min, the spray air pressure is 0.8MPa, and the nozzle diameter is 1.2mm.
  • the first heat treatment of the rare-earth-doped TiCrMnFe alloy strip is specifically: the heat treatment pressure is lower than 0.01 Pa, the heat treatment temperature is 650 ° C., the heat treatment time is 6 h, and the heating rate is 25 ° C./min.
  • the ball milling of the rare-earth-doped TiCrMnFe alloy strip after heat treatment is as follows: the ball milling atmosphere is argon, the ball milling speed is 1800r / min, the ball milling time is 3.5h, and the ball-to-material ratio is 6: 1. The ball milling was 65 minutes, the ball milling was suspended for 4.5 minutes, and the temperature in the ball milling tank was controlled below 400 ° C during the ball milling.
  • the second heat treatment of the rare-earth-doped TiCrMnFe alloy powder is specifically: the heat treatment atmosphere is hydrogen, the heat treatment temperature is 600 ° C., the heat treatment time is 10 minutes, and the heating rate is 10 ° C./min.
  • the hot-pressing sintering of the rare-earth-doped TiCrMnFe alloy powder subjected to the second heat treatment is as follows: the hot-pressing air pressure is lower than 0.03Pa, the hot-pressing temperature is 1370 ° C., the hot-pressing pressure is 15 MPa, and the hot-pressing time is 25 min.
  • TiCrMnFe-based environmentally friendly materials are prepared by the following methods: provide Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials; weigh Ti, Cr, Mn, La, Ce, Gd, and Fe metal raw materials according to a preset chemical formula Weigh; Ti, Cr, Mn, La, Ce, Gd and Fe metal raw materials are subjected to primary vacuum melting to obtain primary TiCrMnFe alloy ingots; primary TiCrMnFe alloy ingots are crushed; primary TiCrMnFe alloy ingots after crushed are subjected to Single-roller quenching to obtain rare-earth-doped TiCrMnFe alloy strips; first heat treatment of rare-earth-doped TiCrMnFe alloy strips; ball milling of rare-earth-doped TiCrMnFe alloy strips after heat treatment to obtain rare-earth-doped TiCrMnFe alloys Powder; performing a second heat treatment on the rare-earth-d
  • the primary vacuum melting process is as follows: the vacuum degree is less than 0.01 Pa, and the melting time is 55 minutes. In the melting process, the alloy ingot is inverted once every 150 s of melting.
  • the single roll quenching is specifically as follows: the vacuum chamber air pressure is lower than 0.01Pa, the copper roll speed is 5300r / min, the spray air pressure is 0.8MPa, and the nozzle diameter is 1.2mm.
  • the first heat treatment of the rare-earth-doped TiCrMnFe alloy strip is specifically: the heat treatment pressure is lower than 0.01 Pa, the heat treatment temperature is 650 ° C., the heat treatment time is 6 h, and the heating rate is 25 ° C./min.
  • the ball milling of the rare-earth-doped TiCrMnFe alloy strip after heat treatment is as follows: the ball milling atmosphere is argon, the ball milling speed is 1800r / min, the ball milling time is 3.5h, and the ball-to-material ratio is 6: 1. The ball milling was 65 minutes, the ball milling was suspended for 4.5 minutes, and the temperature in the ball milling tank was controlled below 400 ° C during the ball milling.
  • the second heat treatment of the rare-earth-doped TiCrMnFe alloy powder is specifically: the heat treatment atmosphere is hydrogen, the heat treatment temperature is 450 ° C., the heat treatment time is 25 min, and the heating rate is 25 ° C./min.
  • the hot-pressing sintering of the rare-earth-doped TiCrMnFe alloy powder after the second heat treatment is specifically: the hot-pressing pressure is lower than 0.03Pa, the hot-pressing temperature is 1400 ° C, the hot-pressing pressure is 30MPa, and the hot-pressing time is 40min.
  • Examples 1-7 were subjected to a hydrogen absorption mass percentage test and a fracture toughness test after 100 cycles (100 hydrogen absorption and desorption) at room temperature.
  • the test methods are known in the art, and the test results are normalized based on Example 1. The test results are listed in Table 1.

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Abstract

一种TiCrMnFe基环保材料，由如下方法制备：提供Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料；按照预设化学式对金属原料进行称重；将称重之后的金属原料进行初级真空熔炼，得到初级TiCrMnFe合金锭；对初级TiCrMnFe合金锭进行破碎；对破碎之后的初级TiCrMnFe合金锭进行单辊急冷以得到稀土掺杂的TiCrMnFe合金条带；对稀土掺杂的TiCrMnFe合金条带进行第一热处理；对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨，得到稀土掺杂的TiCrMnFe合金粉；对稀土掺杂的TiCrMnFe合金粉进行第二热处理；对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结。

Description

一种TiCrMnFe基环保材料 技术领域
本发明涉及新能源材料技术领域，特别涉及一种TiCrMnFe基环保材料。
背景技术
材料吸附储氢是物理储氢方法的一种。目前，物理吸附类储氢的研究主要是两大类材料：一类是碳基材料，包括活性炭、碳纳米管等；另一类是金属有机框架物(MOFs)。活性炭的比表面积影响其储氢性能，比表面积越大，储氢量则越大。碳纳米管具有比活性炭更大的比表面积，并且有大量微孔，具有比较大的氢气吸附能力。金属有机骨架配合物储氢，是以金属离子为连接点，有机配体为支撑构成3D延伸，用其孔结构来实现吸/放氢的一种新型储氢方式。研究发现，在77K下MOFs比其它碳基储氢材料具有更大的储氢量，且MOFs要想具有好的储氢性能必须同时具有小的孔径和大的比表面积，因此可以通过改变MOFs的组成来控制孔的结构和形状，使MOFs具有合适的孔径和非常高的比表面积，它们将成为一种非常有潜力的储氢材料。
公开于该背景技术部分的信息仅仅旨在增加对本发明的总体背景的理解，而不应当被视为承认或以任何形式暗示该信息构成已为本领域一般技术人员所公知的现有技术。
发明内容
本发明的目的在于提供一种TiCrMnFe基环保材料，从而克服现有技术的缺点。
为实现上述目的，本发明提供了一种TiCrMnFe基环保材料，其特征在于：TiCrMnFe基环保材料是由如下方法制备的：提供Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料；按照预设化学式对Ti、Cr、Mn、La、Ce、Gd以及Fe金 属原料进行称重；将称重之后的Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行初级真空熔炼，得到初级TiCrMnFe合金锭；对初级TiCrMnFe合金锭进行破碎；对破碎之后的初级TiCrMnFe合金锭进行单辊急冷以得到稀土掺杂的TiCrMnFe合金条带；对稀土掺杂的TiCrMnFe合金条带进行第一热处理；对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨，得到稀土掺杂的TiCrMnFe合金粉；对稀土掺杂的TiCrMnFe合金粉进行第二热处理；对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结。
优选地，上述技术方案中，其中，预设化学式为：TiCr 2-y-z-a-b-cMn y(La aCe bGd c)Fe z，其中，y＝0.05-0.15，z＝0.4-0.6，a＝0.01-0.02，b＝0.005-0.008，c＝0.003-0.006。
优选地，上述技术方案中，初级真空熔炼工艺具体为：真空度低于0.01Pa，熔炼时间为50-60min，在熔炼过程中，每熔炼100-200s将合金锭进行一次翻转。
优选地，上述技术方案中，单辊急冷具体为：真空腔气压低于0.01Pa，铜辊转速为5000-5500r/min，喷射气压为0.5-1MPa，喷口直径为1-1.5mm。
优选地，上述技术方案中，对稀土掺杂的TiCrMnFe合金条带进行第一热处理具体为：热处理气压低于0.01Pa，热处理温度为600-700℃，热处理时间为5-7h，升温速率为20-30℃/min。
优选地，上述技术方案中，对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨具体为：球磨气氛为氩气气氛，球磨速度为1500-2000r/min，球磨时间为3-4h，球料比为5:1-8:1，在球磨过程中每球磨60-70min，暂停球磨4-5min，球磨过程中控制球磨罐中的温度低于400℃。
优选地，上述技术方案中，对稀土掺杂的TiCrMnFe合金粉进行第二热处理具体为：热处理气氛为氢气，热处理温度为400-500℃，热处理时间为20-30min，升温速率为20-30℃/min。
优选地，上述技术方案中，对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结具体为：热压气压低于0.03Pa，热压温度为1350-1380℃， 热压压力为10-20MPa，热压时间为20-30min。
与现有技术相比，本发明具有如下有益效果：相比于稀土系储氢材料，TiCrMnFe系储氢材料的成本更低，原料来源也更为丰富。相比于配位氢化物储氢材料，TiCrMnFe系储氢材料的化学性质更稳定，更能够工作于复杂的环境当中。但是目前对于TiCrMnFe系储氢材料而言，最大的问题在于：制备工艺简单，一般现有技术制备TiCrMnFe系储氢材料时，都采用一步真空熔炼的方法，这种方法虽然能够制备出TiCrMnFe系合金，但是按照该种方法制备的TiCrMnFe系合金成分不均匀，内部缺陷较多，无法进行线切割，所以这种合金难于实用化。本发明针对现有技术的缺陷，开发了一种制备TiCrMnFe系储氢材料的方法，与现有技术的一般方法相比，虽然本发明的方法步骤较多，工艺较复杂，但是在工业生产中，上述步骤并不显著增加合金的制造成本，同时由于本发明所设计的方法能够极大的促进合金成分的均匀化，所以本发明的方法允许在原合金的基础上进行较多的掺杂，形成性能更好、储氢能力更强的合金。
具体实施方式
提供以下实施方式是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
实施例1
TiCrMnFe基环保材料是由如下方法制备的：提供Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料；按照预设化学式对Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行称重；将称重之后的Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行初级真空熔炼，得到初级TiCrMnFe合金锭；对初级TiCrMnFe合金锭进行破碎；对破碎之后的初级TiCrMnFe合金锭进行单辊急冷以得到稀土掺杂的TiCrMnFe合金条带；对稀土掺杂的TiCrMnFe合金条带进行第一热处理；对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨，得到稀土掺杂的TiCrMnFe合金粉；对稀土掺杂的TiCrMnFe合金粉进行第二热处理；对经过 第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结。其中，预设化学式为：TiCr 2-y-z-a-b-cMn y(La aCe bGd c)Fe z，其中，y＝0.05，z＝0.4，a＝0.01，b＝0.005，c＝0.003。初级真空熔炼工艺具体为：真空度低于0.01Pa，熔炼时间为50min，在熔炼过程中，每熔炼100s将合金锭进行一次翻转。单辊急冷具体为：真空腔气压低于0.01Pa，铜辊转速为5000r/min，喷射气压为0.5MPa，喷口直径为1mm。对稀土掺杂的TiCrMnFe合金条带进行第一热处理具体为：热处理气压低于0.01Pa，热处理温度为600℃，热处理时间为5h，升温速率为20℃/min。对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨具体为：球磨气氛为氩气气氛，球磨速度为1500r/min，球磨时间为3h，球料比为5:1，在球磨过程中每球磨60min，暂停球磨4min，球磨过程中控制球磨罐中的温度低于400℃。对稀土掺杂的TiCrMnFe合金粉进行第二热处理具体为：热处理气氛为氢气，热处理温度为400℃，热处理时间为20min，升温速率为20℃/min。对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结具体为：热压气压低于0.03Pa，热压温度为1350℃，热压压力为10MPa，热压时间为20min。
实施例2
TiCrMnFe基环保材料是由如下方法制备的：提供Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料；按照预设化学式对Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行称重；将称重之后的Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行初级真空熔炼，得到初级TiCrMnFe合金锭；对初级TiCrMnFe合金锭进行破碎；对破碎之后的初级TiCrMnFe合金锭进行单辊急冷以得到稀土掺杂的TiCrMnFe合金条带；对稀土掺杂的TiCrMnFe合金条带进行第一热处理；对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨，得到稀土掺杂的TiCrMnFe合金粉；对稀土掺杂的TiCrMnFe合金粉进行第二热处理；对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结。其中，预设化学式为：TiCr 2-y-z-a-b-cMn y(La aCe bGd c)Fe z，其中，y＝0.15，z＝0.6，a＝0.02，b＝0.008，c＝0.006。初级真空熔炼工艺具体为：真空度低于0.01Pa，熔炼时间为60min，在熔炼过程中，每熔炼200s将合金锭进行一次翻转。单辊急冷具体为：真空腔气压低于0.01Pa，铜辊转速为5500r/min，喷射气压为1MPa，喷口直径为 1.5mm。对稀土掺杂的TiCrMnFe合金条带进行第一热处理具体为：热处理气压低于0.01Pa，热处理温度为700℃，热处理时间7h，升温速率为30℃/min。对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨具体为：球磨气氛为氩气气氛，球磨速度为2000r/min，球磨时间为4h，球料比为8:1，在球磨过程中每球磨70min，暂停球磨5min，球磨过程中控制球磨罐中的温度低于400℃。对稀土掺杂的TiCrMnFe合金粉进行第二热处理具体为：热处理气氛为氢气，热处理温度为500℃，热处理时间为30min，升温速率为30℃/min。对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结具体为：热压气压低于0.03Pa，热压温度为1380℃，热压压力为20MPa，热压时间为30min。
实施例3
TiCrMnFe基环保材料是由如下方法制备的：提供Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料；按照预设化学式对Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行称重；将称重之后的Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行初级真空熔炼，得到初级TiCrMnFe合金锭；对初级TiCrMnFe合金锭进行破碎；对破碎之后的初级TiCrMnFe合金锭进行单辊急冷以得到稀土掺杂的TiCrMnFe合金条带；对稀土掺杂的TiCrMnFe合金条带进行第一热处理；对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨，得到稀土掺杂的TiCrMnFe合金粉；对稀土掺杂的TiCrMnFe合金粉进行第二热处理；对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结。其中，预设化学式为：TiCr 2-y-z-a-b-cMn y(La aCe bGd c)Fe z，其中，y＝0.1，z＝0.5，a＝0.015，b＝0.006，c＝0.004。初级真空熔炼工艺具体为：真空度低于0.01Pa，熔炼时间为55min，在熔炼过程中，每熔炼150s将合金锭进行一次翻转。单辊急冷具体为：真空腔气压低于0.01Pa，铜辊转速为5300r/min，喷射气压为0.8MPa，喷口直径为1.2mm。对稀土掺杂的TiCrMnFe合金条带进行第一热处理具体为：热处理气压低于0.01Pa，热处理温度为650℃，热处理时间为6h，升温速率为25℃/min。对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨具体为：球磨气氛为氩气气氛，球磨速度为1800r/min，球磨时间为3.5h，球料比为6:1，在球磨过程中每球磨65min，暂停球磨4.5min，球磨过程中控制球磨罐中的温度低于 400℃。对稀土掺杂的TiCrMnFe合金粉进行第二热处理具体为：热处理气氛为氢气，热处理温度为450℃，热处理时间为25min，升温速率为25℃/min。对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结具体为：热压气压低于0.03Pa，热压温度为1370℃，热压压力为15MPa，热压时间为25min。
实施例4
TiCrMnFe基环保材料是由如下方法制备的：提供Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料；按照预设化学式对Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行称重；将称重之后的Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行初级真空熔炼，得到初级TiCrMnFe合金锭；对初级TiCrMnFe合金锭进行破碎；对破碎之后的初级TiCrMnFe合金锭进行单辊急冷以得到稀土掺杂的TiCrMnFe合金条带；对稀土掺杂的TiCrMnFe合金条带进行第一热处理；对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨，得到稀土掺杂的TiCrMnFe合金粉；对稀土掺杂的TiCrMnFe合金粉进行第二热处理；对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结。其中，预设化学式为：TiCr 2-y-z-a-b-cMn y(La aCe bGd c)Fe z，其中，y＝0.2，z＝0.3，a＝0.005，b＝0.003，c＝0.001。初级真空熔炼工艺具体为：真空度低于0.01Pa，熔炼时间为40min，在熔炼过程中，每熔炼50s将合金锭进行一次翻转。单辊急冷具体为：真空腔气压低于0.01Pa，铜辊转速为6000r/min，喷射气压为2MPa，喷口直径为2mm。对稀土掺杂的TiCrMnFe合金条带进行第一热处理具体为：热处理气压低于0.01Pa，热处理温度为650℃，热处理时间为6h，升温速率为25℃/min。对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨具体为：球磨气氛为氩气气氛，球磨速度为1800r/min，球磨时间为3.5h，球料比为6:1，在球磨过程中每球磨65min，暂停球磨4.5min，球磨过程中控制球磨罐中的温度低于400℃。对稀土掺杂的TiCrMnFe合金粉进行第二热处理具体为：热处理气氛为氢气，热处理温度为450℃，热处理时间为25min，升温速率为25℃/min。对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结具体为：热压气压低于0.03Pa，热压温度为1370℃，热压压力为15MPa，热压时间为25min。
实施例5
TiCrMnFe基环保材料是由如下方法制备的：提供Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料；按照预设化学式对Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行称重；将称重之后的Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行初级真空熔炼，得到初级TiCrMnFe合金锭；对初级TiCrMnFe合金锭进行破碎；对破碎之后的初级TiCrMnFe合金锭进行单辊急冷以得到稀土掺杂的TiCrMnFe合金条带；对稀土掺杂的TiCrMnFe合金条带进行第一热处理；对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨，得到稀土掺杂的TiCrMnFe合金粉；对稀土掺杂的TiCrMnFe合金粉进行第二热处理；对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结。其中，预设化学式为：TiCr 2-y-z-a-b-cMn y(La aCe bGd c)Fe z，其中，y＝0.1，z＝0.5，a＝0.015，b＝0.006，c＝0.004。初级真空熔炼工艺具体为：真空度低于0.01Pa，熔炼时间为55min，在熔炼过程中，每熔炼150s将合金锭进行一次翻转。单辊急冷具体为：真空腔气压低于0.01Pa，铜辊转速为5300r/min，喷射气压为0.8MPa，喷口直径为1.2mm。对稀土掺杂的TiCrMnFe合金条带进行第一热处理具体为：热处理气压低于0.01Pa，热处理温度为800℃，热处理时间为4h，升温速率为50℃/min。对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨具体为：球磨气氛为氩气气氛，球磨速度为1000r/min，球磨时间为5h，球料比为10:1，在球磨过程中每球磨80min，暂停球磨10min，球磨过程中不控制球磨罐中的温度。对稀土掺杂的TiCrMnFe合金粉进行第二热处理具体为：热处理气氛为氢气，热处理温度为450℃，热处理时间为25min，升温速率为25℃/min。对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结具体为：热压气压低于0.03Pa，热压温度为1370℃，热压压力为15MPa，热压时间为25min。
实施例6
TiCrMnFe基环保材料是由如下方法制备的：提供Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料；按照预设化学式对Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行称重；将称重之后的Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行初级真空熔炼，得到初级TiCrMnFe合金锭；对初级TiCrMnFe合金锭进行破碎；对破碎之后的初级TiCrMnFe合金锭进行单辊急冷以得到稀土掺杂 的TiCrMnFe合金条带；对稀土掺杂的TiCrMnFe合金条带进行第一热处理；对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨，得到稀土掺杂的TiCrMnFe合金粉；对稀土掺杂的TiCrMnFe合金粉进行第二热处理；对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结。其中，预设化学式为：TiCr 2-y-z-a-b-cMn y(La aCe bGd c)Fe z，其中，y＝0.1，z＝0.5，a＝0.015，b＝0.006，c＝0.004。初级真空熔炼工艺具体为：真空度低于0.01Pa，熔炼时间为55min，在熔炼过程中，每熔炼150s将合金锭进行一次翻转。单辊急冷具体为：真空腔气压低于0.01Pa，铜辊转速为5300r/min，喷射气压为0.8MPa，喷口直径为1.2mm。对稀土掺杂的TiCrMnFe合金条带进行第一热处理具体为：热处理气压低于0.01Pa，热处理温度为650℃，热处理时间为6h，升温速率为25℃/min。对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨具体为：球磨气氛为氩气气氛，球磨速度为1800r/min，球磨时间为3.5h，球料比为6:1，在球磨过程中每球磨65min，暂停球磨4.5min，球磨过程中控制球磨罐中的温度低于400℃。对稀土掺杂的TiCrMnFe合金粉进行第二热处理具体为：热处理气氛为氢气，热处理温度为600℃，热处理时间为10min，升温速率为10℃/min。对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结具体为：热压气压低于0.03Pa，热压温度为1370℃，热压压力为15MPa，热压时间为25min。
实施例7
TiCrMnFe基环保材料是由如下方法制备的：提供Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料；按照预设化学式对Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行称重；将称重之后的Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行初级真空熔炼，得到初级TiCrMnFe合金锭；对初级TiCrMnFe合金锭进行破碎；对破碎之后的初级TiCrMnFe合金锭进行单辊急冷以得到稀土掺杂的TiCrMnFe合金条带；对稀土掺杂的TiCrMnFe合金条带进行第一热处理；对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨，得到稀土掺杂的TiCrMnFe合金粉；对稀土掺杂的TiCrMnFe合金粉进行第二热处理；对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结。其中，预设化学式为：TiCr 2-y-z-a-b-cMn y(La aCe bGd c)Fe z，其中，y＝0.1，z＝0.5，a＝0.015，b＝0.006， c＝0.004。初级真空熔炼工艺具体为：真空度低于0.01Pa，熔炼时间为55min，在熔炼过程中，每熔炼150s将合金锭进行一次翻转。单辊急冷具体为：真空腔气压低于0.01Pa，铜辊转速为5300r/min，喷射气压为0.8MPa，喷口直径为1.2mm。对稀土掺杂的TiCrMnFe合金条带进行第一热处理具体为：热处理气压低于0.01Pa，热处理温度为650℃，热处理时间为6h，升温速率为25℃/min。对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨具体为：球磨气氛为氩气气氛，球磨速度为1800r/min，球磨时间为3.5h，球料比为6:1，在球磨过程中每球磨65min，暂停球磨4.5min，球磨过程中控制球磨罐中的温度低于400℃。对稀土掺杂的TiCrMnFe合金粉进行第二热处理具体为：热处理气氛为氢气，热处理温度为450℃，热处理时间为25min，升温速率为25℃/min。对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结具体为：热压气压低于0.03Pa，热压温度为1400℃，热压压力为30MPa，热压时间为40min。
对实施例1-7进行室温下100次循环(100次吸放氢)之后的吸氢质量百分数测试和断裂韧性测试，测试方式是本领域公知的方式，测试结果基于实施例1进行归一化，测试结果列于表1。
表1
Figure PCTCN2018101856-appb-000001
前述对本发明的具体示例性实施方案的描述是为了说明和例证的目的。这些描述并非想将本发明限定为所公开的精确形式，并且很显然，根据上述教导，可以进行很多改变和变化。对示例性实施例进行选择和描述的目的在于解释本发明的特定原理及其实际应用，从而使得本领域的技术人员能够实现并利用本发明的各种不同的示例性实施方案以及各种不同的选择和改变。本发明的范围意在由权利要求书及其等同形式所限定。

Claims (8)

  1. 一种TiCrMnFe基环保材料，其特征在于：所述TiCrMnFe基环保材料是由如下方法制备的：
    提供Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料；
    按照预设化学式对所述Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行称重；
    将称重之后的所述Ti、Cr、Mn、La、Ce、Gd以及Fe金属原料进行初级真空熔炼，得到初级TiCrMnFe合金锭；
    对所述初级TiCrMnFe合金锭进行破碎；
    对破碎之后的初级TiCrMnFe合金锭进行单辊急冷以得到稀土掺杂的TiCrMnFe合金条带；
    对所述稀土掺杂的TiCrMnFe合金条带进行第一热处理；
    对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨，得到稀土掺杂的TiCrMnFe合金粉；
    对所述稀土掺杂的TiCrMnFe合金粉进行第二热处理；
    对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结。
  2. 如权利要求1所述的TiCrMnFe基环保材料，其特征在于：其中，所述预设化学式为：TiCr 2-y-z-a-b-cMn y(La aCe bGd c)Fe z，其中，y＝0.05-0.15，z＝0.4-0.6，a＝0.01-0.02，b＝0.005-0.008，c＝0.003-0.006。
  3. 如权利要求1所述的TiCrMnFe基环保材料，其特征在于：所述初级真空熔炼工艺具体为：真空度低于0.01Pa，熔炼时间为50-60min，在熔炼过程中，每熔炼100-200s将合金锭进行一次翻转。
  4. 如权利要求1所述的TiCrMnFe基环保材料，其特征在于：所述单辊急冷具体为：真空腔气压低于0.01Pa，铜辊转速为5000-5500r/min，喷射气压 为0.5-1MPa，喷口直径为1-1.5mm。
  5. 如权利要求1所述的TiCrMnFe基环保材料，其特征在于：对所述稀土掺杂的TiCrMnFe合金条带进行第一热处理具体为：热处理气压低于0.01Pa，热处理温度为600-700℃，热处理时间为5-7h，升温速率为20-30℃/min。
  6. 如权利要求1所述的TiCrMnFe基环保材料，其特征在于：对热处理之后的稀土掺杂的TiCrMnFe合金条带进行球磨具体为：球磨气氛为氩气气氛，球磨速度为1500-2000r/min，球磨时间为3-4h，球料比为5:1-8:1，在球磨过程中每球磨60-70min，暂停球磨4-5min，球磨过程中控制球磨罐中的温度低于400℃。
  7. 如权利要求1所述的TiCrMnFe基环保材料，其特征在于：对所述稀土掺杂的TiCrMnFe合金粉进行第二热处理具体为：热处理气氛为氢气，热处理温度为400-500℃，热处理时间为20-30min，升温速率为20-30℃/min。
  8. 如权利要求1所述的TiCrMnFe基环保材料，其特征在于：对经过第二热处理的稀土掺杂的TiCrMnFe合金粉进行热压烧结具体为：热压气压低于0.03Pa，热压温度为1350-1380℃，热压压力为10-20MPa，热压时间为20-30min。
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