AU2019240977B2 - Heat Treatment Process for Ceramic-Reinforced Steel-Matrix Composite Material - Google Patents
Heat Treatment Process for Ceramic-Reinforced Steel-Matrix Composite Material Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 118
- 239000011159 matrix material Substances 0.000 title claims abstract description 101
- 238000010438 heat treatment Methods 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 16
- 238000000576 coating method Methods 0.000 claims abstract description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 239000000919 ceramic Substances 0.000 claims description 11
- 238000005336 cracking Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000007669 thermal treatment Methods 0.000 abstract 3
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 239000002905 metal composite material Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000003637 basic solution Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2251/00—Treating composite or clad material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Laminated Bodies (AREA)
Abstract
The invention belongs to the technical field of composite materials, and particularly discloses a thermal treatment process for a ceramic-reinforced steel-matrix composite material, the thermal treatment process comprising the following steps: (1) applying an antioxidant coating on a surface of a ceramic-reinforced steel-matrix composite material to be thermally treated, then placing the composite material into a box furnace, evacuating the same, and charging nitrogen into the furnace such that the oxygen content in the box furnace is less than or equal to 5% and the furnace pressure is maintained at 60-70 mbar; (2) heating the composite material to 380-430°C at a heating rate of 30-50°C/h, and maintaining the temperature for 0.5-1 h; (3) heating the composite material to 680-730°C at a heating rate of 60-80°C/h, and maintaining the temperature for 0.5-1 h; (4) heating the composite material to 930-950°C at a heating rate of 50-60°C/h, maintaining the temperature for 2-6 h, and taking out and air-cooling the composite material to room temperature; and (5) heating the composite material to 200-400°C at a heating rate of 20-35°C/h, maintaining the temperature for 2-3 h, and performing furnace cooling on the composite material. By processing the ceramic-reinforced steel-matrix composite material using the process provided by the technical solution of the invention, the abrasion resistance and toughness of the composite material can be improved, and cracking of the composite material can be effectively avoided during the thermal treatment.
Description
HEAT TREATMENT PROCESS FOR CERAMIC-REINFORCED STEEL-MATRIX COMPOSITE MATERIAL TECHNICAL FIELD The present invention belongs to the technical field of composite materials, and in particular relates to a heat treatment process for a ceramic-reinforced steel-matrix composite material. BACKGROUND With continuous development of modem industrial processes, consumption of wear-resistant materials is increasing day by day, and traditional steel materials can no longer meet requirements on wear resistance. With high hardness and high wear resistance of ceramics and excellent toughness of metals, ceramic-metal wear-resistant composite materials solve the problem with traditional steel materials that high hardness and high toughness cannot coexist. At present, studies on preparation processes of ceramic-metal composite materials are going in-depth while a heat treatment process is the key to maximize the potential of the composite materials. Ceramics have physical and chemical properties very different from those of metals. If a metal heat treatment method is used to treat the ceramic-metal composite materials, ceramic particles are easy to fall off and the ceramic-metal composite materials are prone to crack during the heat treatment, since the ceramics have a thermal expansion coefficient, a shrinkage coefficient and the like very different from those of metals. Moreover, the mechanical properties such as wear resistance, impact toughness and hardness of the composite materials are not significantly improved after heat treatment. Thus, how to obtain composite parts with excellent wear resistance is an important focus in researches about heat treatment processes of composite materials. SUMMARY The present invention seeks to provide a heat treatment process for a ceramic-reinforced steel-matrix composite material, which improves wear resistance and toughness of the composite materials, and effectively avoids cracking during the heat treatment process. The present invention therefore provides a heat treatment process for a ceramic-reinforced steel-matrix composite material, including the following steps: step (1): applying an antioxidant coating on a surface of a ceramic-reinforced steel-matrix composite material to be thermally treated, putting the ceramic-reinforced steel-matrix composite material into a box furnace, vacuumizing, filling with nitrogen until an oxygen content in the box furnace is <5%, and maintaining a furnace chamber pressure at 60-70 mbar; step (2): heating the ceramic-reinforced steel-matrix composite material to 380-430°C at a heating rate of 30-5 0 °C/h, and holding this temperature for 0.5-1 h; step (3): heating the ceramic-reinforced steel-matrix composite material to 680-730°C at a heating rate of 60-80°C/h, and holding this temperature for 0.5-1 h; step (4): heating the ceramic-reinforced steel-matrix composite material to 930-950°C at a heating rate of 50-6 0 °C/h, and holding this temperature for 2-6 h, taking out the ceramic-reinforced steel-matrix composite material and naturally cooling to room temperature; step (5): heating the ceramic-reinforced steel-matrix composite material to 200-400°C at a heating rate of 20-35°C/h, holding this temperature for 2-3 h, and cooling in the furnace, wherein the ceramic-reinforced steel-matrix composite material is ZTA ceramic particle-reinforced ZG50Cr5Mo composite material. The working principle of this basic solution is as follows: this heat treatment process not only guarantees the comprehensive mechanical properties of the steel matrix with excellent wear resistance, but also effectively reduces thermal stress caused by a difference in thermal expansion coefficients of the steel matrix and ceramic particles during heating and cooling in the heat treatment process. Thus, the solution reduces the chance of cracking of the ceramic-reinforced steel-matrix composite material, so as to obtain desired mechanical properties and wear resistance. The beneficial effects of this basic solution are as follows: 1. The heat treatment process of the present invention effectively improves the wear resistance and the toughness of the composite material. 2. The present invention achieves reduction of thermal stress caused by the difference in thermal expansion coefficient between the ceramic particles and the steel matrix during the heat treatment process by pre-treatment of step (1) and appropriate heating and cooling rates. The present invention effectively avoids falling off of ceramic particles and cracking of the composite material due to inconsistent expansion and contraction coefficients of the ceramic and the metal. Further, in step (2), the ceramic-reinforced steel-matrix composite material is heated to 400-410°C at a heating rate of 38-42°C/h, and this temperature is held for 0.6 h. After many experiments carried out by the applicant, it has been found that, the product obtained has the best comprehensive properties when parameters of the heat treatment are controlled within the above ranges. Further, in step (3), the ceramic-reinforced steel-matrix composite material is heated to 698-710°C at a heating rate of 68-74°C/h, and this temperature is held for 0.8 h. After many experiments carried out by the applicant, it has been found that, the product obtained has the best comprehensive properties when parameters of the heat treatment are controlled within the above ranges. Further, in step (4), the ceramic-reinforced steel-matrix composite material is heated to 936-945°C at a heating rate of 53-58°C/h, and this temperature is held for 4 h; then the ceramic-reinforced steel-matrix composite material is taken out and naturally cooled to room temperature. After many experiments carried out by the applicant, it has been found that, the product obtained has the best comprehensive properties when parameters of the heat treatment are controlled within the above ranges. Further, in step (5), the ceramic-reinforced steel-matrix composite material is heated to 220-230°C at a heating rate of 26-32°C/h, and this temperature is held for 2.5 h before cooling in the furnace. After many experiments carried out by the applicant, it has been found that, the product obtained has the best comprehensive properties when parameters of the heat treatment are controlled within the above ranges. Further, in step (1), the antioxidant coating is applied with a thickness of 0.2-0.5 mm. After many experiments carried out by the applicant, it has been found that a SG-JD high temperature-resistant antioxidant coating is the best match for the ceramic-reinforced steel-matrix composite material since it has excellent adhesion after coating and is not easy to fall off. At the same time, the SG-JD high temperature-resistant antioxidant coating effectively improves corrosion and oxidation resistance of the ceramic-reinforced steel-matrix composite material and prolongs the service life thereof. BRIEF DESCRIPTION OF DRAWINGS FIG. 1 shows a graph of an example of the heat treatment process for a ceramic-reinforced steel-matrix composite material of the present invention; FIG. 2 shows the structure of the ceramic-reinforced steel-matrix composite material before heat treatment in Example 1 for comparison; FIG. 3 shows the structure of the ceramic-reinforced steel-matrix composite material after heat treatment in Example 1 for comparison; FIG. 4 shows the structure of the matrix of the ceramic-reinforced steel-matrix composite material before heat treatment in Example 1 for comparison; FIG. 5 shows the structure of the matrix of the ceramic-reinforced steel-matrix composite material after heat treatment in Example 1 for comparison. DETAILED DESCRIPTION Raw materials are described below and the present invention is further described in detail below with reference to specific examples. The ceramic-reinforced steel-matrix composite materials used in Examples 1-4 are all ZTA (zirconia-toughened-alumina) ceramic particle-reinforced ZG50Cr5Mo (a commercially available steel product, which is in accordant with GB/T26651-2011, "Abrasion-resistant steel casting", and contains 0.45-0.55 wt% of C, 0.4-1.0 wt% of Si, 0.5-1.2 wt% of Mn, 4.0-6.0 wt% of Cr, 0.2-0.8 wt% of Mo, not more than 0.5 wt% of Ni, not more than 0.04 wt% of S, and not more than 0.04 wt% of P) composite materials. Example 1
A heat treatment process for a ceramic-reinforced steel-matrix composite material included the following steps: Step (1): an SG-JD high temperature resistant antioxidant coating (a commercially available product, i.e. SG-JD High-Temperature Oxygen-Proof Paint (800-1250 C), purchased from JiangYin Osaka Paint Co.,Ltd., China) was applied on a surface of a ceramic-reinforced steel-matrix composite material to be thermally treated, where the coating was 0.3 mm thick. The ceramic-reinforced steel-matrix composite material was put into a box furnace which was then vacuumized, filled with nitrogen until an oxygen content in the box furnace was <5%. The furnace chamber pressure was maintained at 60 mbar. Step (2): the ceramic-reinforced steel-matrix composite material was heated to 400°C at a heating rate of 30°C/h, and this temperature was held for 0.5 h. Step (3): the ceramic-reinforced steel-matrix composite material was heated to 700°C at a heating rate of 60°C/h, and this temperature was held for0.5 h. Step (4): the ceramic-reinforced steel-matrix composite material was heated to 930°C at a heating rate of 50°C/h, and this temperature was held for 3 h. Then the ceramic-reinforced steel-matrix composite material was taken out and naturally cooled to room temperature. Step (5): the ceramic-reinforced steel-matrix composite material was heated to 250°C at a heating rate of 20°C/h, and this temperature was held for 2 h before cooling in the furnace. The heat treatment process for a ceramic-reinforced steel-matrix composite material was shown in HG. 1. Before the heat treatment, the ceramic-reinforced steel-matrix composite had a structure as shown in HG. 2, and the matrix thereof had as structure as shown in FIG 4. After the heat treatment, tempered martensity was obtained in the ceramic-reinforced steel-matrix composite material where particles were well combined with the matrix with no heat treatment cracks. After the heat treatment, the ceramic-reinforced steel-matrix composite material had a structure as shown in HG. 3, and the matrix thereof had a structure as shown inHG. 5. The wear resistance and the toughness of the ceramic-reinforced steel-matrix composite material after the heat treatment were shown in Table 1. Example 2 A heat treatment process for a ceramic-reinforced steel-matrix composite material included the following steps: Step (1): an SG-JD high temperature-resistant antioxidant coating was applied on a surface of a ceramic-reinforced steel-matrix composite material to be thermally treated, where the coating was 0.4 mm thick. The ceramic-reinforced steel-matrix composite material was put into a box furnace which was then vacuumized, filled with nitrogen until an oxygen content in the box furnace was <5%. The furnace chamber pressure was maintained at 63 mbar.
Step (2): the ceramic-reinforced steel-matrix composite material was heated to 400°C at a heating rate of 35°C/h, and this temperature was held for 0.7 h. Step (3): the ceramic-reinforced steel-matrix composite material was heated to 700°C at a heating rate of 68°C/h, and this temperature was held for 0.6 h. Step (4): the ceramic-reinforced steel-matrix composite material was heated to 935°C at a heating rate of 56°C/h, and this temperature was held for 2.6 h. Then the ceramic-reinforced
4A steel-matrix composite material was taken out and naturally cooled to room temperature. Step (5): the ceramic-reinforced steel-matrix composite material was heated to 240°C at a heating rate of 25°C/h, and this temperature was held for 2.3 h before cooling in the furnace. The performance test results of the ceramic-reinforced steel-matrix composite material after heat treatment in this example were shown in Table 1. Example 3 A heat treatment process for a ceramic-reinforced steel-matrix composite material included the following steps: Step (1): an SG-JD high temperature-resistant antioxidant coating was applied on a surface of a ceramic-reinforced steel-matrix composite material to be thermally treated, where the coating was 0.5 mm thick. The composite material was put into a box furnace which was then vacuumized, filled with nitrogen until an oxygen content in the box furnace was 5%. The furnace chamber pressure was maintained at 67 mbar. Step (2): the ceramic-reinforced steel-matrix composite material was heated to 400°C at a heating rate of 45°C/h, and this temperature was held for 0.8 h. Step (3): the ceramic-reinforced steel-matrix composite material was heated to 700°C at a heating rate of 75°C/h, and this temperature was held for 0.9 h. Step (4): the ceramic-reinforced steel-matrix composite material was heated to 940°C at a heating rate of 58°C/h, and this temperature was held for 4 h. Then the ceramic-reinforced steel-matrix composite material was taken out and naturally cooled to room temperature. Step (5): the ceramic-reinforced steel-matrix composite material was heated to 300°C at a heating rate of 28°C/h, and this temperature was held for 2.5 h before cooling in the furnace. The performance test results of the ceramic-reinforced steel-matrix composite material after heat treatment in this example were shown in Table 1. Example 4 A heat treatment process for a ceramic-reinforced steel-matrix composite material included the following steps: Step (1): an SG-JD high temperature-resistant antioxidant coating was applied on a surface of a ceramic-reinforced steel-matrix composite material to be thermally treated, where the coating was 0.38 mm thick. The composite material was put into a box furnace which was then vacuumized, filled with nitrogen until an oxygen content in the box furnace was <5%. The furnace chamber pressure was maintained at 60-70 mbar. Step (2): the composite material was heated to 400°C at a heating rate of 50°C/h, and this temperature was held for 1 h. Step (3): the ceramic-reinforced steel-matrix composite material was heated to 700°C at a heating rate of 8 0 °C/h, and this temperature was held for 1 h. Step (4): the ceramic-reinforced steel-matrix composite material was heated to 950°C at a heating rate of 60 °C/h, and this temperature was held for 6 h. Then the ceramic-reinforced steel-matrix composite material was taken out and naturally cooled to room temperature. Step (5): the ceramic-reinforced steel-matrix composite material was heated to 400°C at a heating rate of 35°C/h, and this temperature was held for 3 h before cooling in the furnace. The performance test results of the ceramic-reinforced steel-matrix composite material after heat treatment in this example were shown in Table 1. Table 1 Sample No. As-cast Example 1 Example 2 Example 3 Example 4 Hardness HRC 64 63 65 61 67 Impact toughness aUN/(J/cm 2 ) 9.6 11 11.6 11.3 12.1 Relative wear resistance 1 1.3 1.4 1.28 1.39 Table 1 showed data of the performance test results of the as-cast ceramic-reinforced steel-matrix composite material which was not subjected to heat treatment, and the ceramic-reinforced steel-matrix composite materials after heat treatment in Examples 1-4. Relative wear resistance referred to the wear resistance of the ceramic-reinforced steel-matrix composite materials after heat treatment with respect to that of the as-cast ceramic-reinforced steel-matrix composite material which was not subjected to heat treatment measured under the same working conditions, where the wear resistance of the as-cast material as a standard sample was defined as 1. Conclusion from comparison: Examples 1-4 were ceramic-reinforced steel-matrix composite materials after heat treatment, while the as-cast one was a ceramic-reinforced steel-matrix composite material which was not subjected to heat treatment. It can be seen obviously from the data in Table 1 that, after the heat treatment of this solution of the present invention, the mechanical properties such as hardness, toughness and wear resistance of the ceramic-reinforced steel-matrix composites were significantly improved. The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates. Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.
Claims (6)
- The Claims Defining the Invention are as Follows: 1. A heat treatment process for a ceramic-reinforced steel-matrix composite material, comprising the following steps: step (1): applying an antioxidant coating on a surface of a ceramic-reinforced steel-matrix composite material to be thermally treated, putting the ceramic-reinforced steel-matrix composite material into a box furnace, vacuumizing, filling with nitrogen until an oxygen content in the box furnace is <5%, and maintaining a furnace chamber pressure at 60-70 mbar; step (2): heating the ceramic-reinforced steel-matrix composite material to 380-430°C at a heating rate of 30-50°C/h, and holding this temperature for 0.5-1 h; step (3): heating the ceramic-reinforced steel-matrix composite material to 680-730°C at a heating rate of 60-80°C/h, and holding this temperature for 0.5-1 h; step (4): heating the ceramic-reinforced steel-matrix composite material to 930-950°C at a heating rate of 50-60°C/h, and holding this temperature for 2-6 h, taking out the ceramic-reinforced steel-matrix composite material and naturally cooling to room temperature; step (5): heating the ceramic-reinforced steel-matrix composite material to 200-400°C at a heating rate of 20-35°C/h, holding this temperature for 2-3 h, and cooling in the furnace, wherein the ceramic-reinforced steel-matrix composite material is ZTA ceramic particle-reinforced ZG50Cr5Mo composite material.
- 2. The heat treatment process for a ceramic-reinforced steel-matrix composite material according to claim 1, wherein, in step (2), the ceramic-reinforced steel-matrix composite material is heated to 400-410°C at a heating rate of 38-42°C/h, and this temperature is held for 0.6 h.
- 3. The heat treatment process for a ceramic-reinforced steel-matrix composite material according to claim 2, wherein, in step (3), the ceramic-reinforced steel-matrix composite material is heated to 698-710°C at a heating rate of 68-74°C/h, and this temperature is held for 0.8 h.
- 4. The heat treatment process for a ceramic-reinforced steel-matrix composite material according to claim 3, wherein, in step (4), the ceramic-reinforced steel-matrix composite material is heated to 936-945°C at a heating rate of 53-58°C/h, and this temperature is held for 4 h; then the ceramic-reinforced steel-matrix composite material is taken out and naturally cooled to room temperature.
- 5. The heat treatment process for a ceramic-reinforced steel-matrix composite material according to claim 4, wherein, in step (5), the ceramic-reinforced steel-matrix composite material is heated to 220-230°C at a heating rate of 26-32°C/h, and this temperature is held for 2.5 h before cooling in the furnace.
- 6. The heat treatment process for a ceramic-reinforced steel-matrix composite material according to claim 1, wherein, in step (1), the antioxidant coating is applied with a thickness of0.2-0.5 mm.
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| CN201810269477.8 | 2018-03-29 | ||
| CN201810269477.8A CN108374078B (en) | 2018-03-29 | 2018-03-29 | A kind of heat treatment process of ceramics enhancing base steel composite material |
| PCT/CN2019/070805 WO2019184552A1 (en) | 2018-03-29 | 2019-01-08 | Thermal treatment process for ceramic-reinforced steel-matrix composite material |
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| CN101403032B (en) * | 2008-11-12 | 2010-06-23 | 中国科学院金属研究所 | Thermal treatment process for quick cutting steel composite roll |
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| CN104439192A (en) * | 2014-11-04 | 2015-03-25 | 昆明理工大学 | Method for manufacturing cellular ceramic-metal composite vertical mill roller |
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| Publication number | Publication date |
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| CN108374078A (en) | 2018-08-07 |
| AU2019240977A1 (en) | 2020-10-22 |
| CN108374078B (en) | 2019-07-02 |
| WO2019184552A1 (en) | 2019-10-03 |
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