CN105004587A - Preparation and test method of nickel-based high temperature alloy powder rapid melting and solidifying sample - Google Patents
Preparation and test method of nickel-based high temperature alloy powder rapid melting and solidifying sample Download PDFInfo
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Abstract
The invention relates to a preparation and test method of a nickel-based high temperature alloy powder rapid melting and solidifying sample. The method comprises the following steps: 1, preparing high temperature alloy powder through adopting an inert gas atomization or plasma rotating electrode technology; 2, screening, putting alloy powder with certain granularity in the sheath of a stainless steel tube, degassing, and soldering and sealing; 3, carrying out loose solidification on the powder in the sheath through hot isostatic pressing at a temperature being far lower than a routine hot isostatic pressing molding temperature; 4, processing the hot isostatic pressed sheath to form a cylindrical sample with bright appearance; 5, putting the cylindrical sample in a current rapid heating thermal simulation test machine, rapidly heating the sample to different temperatures at different heating rates in protection atmosphere, carrying out heat insulation, cooling, and recording to the temperature curve; and 6, cutting the sample to obtain microstructure, phase structure and component change data of the sample. The method can be used to determine the microstructure change rule of high temperature alloy powder in the melting and solidifying process at different temperatures and heating rates, and can be used for guiding material and thermal technology selection of the high temperature alloy powder.
Description
The present invention is a kind of preparation and test method of Ni-base Superalloy Powder rapidly solidification sample, belongs to powder metallurgy superalloy field.
Background technology
Gas turbine technology is important prerequisite and the bottleneck of China's aircraft development, and high temperature alloy and forming parts technology thereof are called as the heart of gas turbine and are used to manufacture gas turbine hot-end component all the time.At present, powder metallurgy superalloy is applied in advanced gas turbine engines, powder will directly have influence on military service performance and the life-span of part to block materials at the microstructure evolution of forming process, particularly more progressively start the advanced fast shaping technology being applied to high-temperature alloy part, as 3D printing and reaction-injection moulding etc., relate to the Microstructural evolution of alloy powder in high speed heating-cooling process, these Physical Metallurgy information formulations to technological parameter have very large technological guidance's meaning.The method in the past changed for alloy original bulky powder high temperature undertissue mainly adopts common heating furnace to heat, and its shortcoming is: the first, and programming rate is very slow, differs greatly with the virtual condition of technological process; The second, programming rate is difficult to control, and cannot meet the needs that different temperatures undertissue development law measures; 3rd, protective atmosphere borehole cooling speeds control alternative spatial is limited; 4th, the accurate record that more difficult realization responds fast.
Summary of the invention
The present invention designs for above-mentioned the deficiencies in the prior art the preparation and test method that provide a kind of superalloy powder rapidly solidification sample just, its objective is determine that superalloy powder melts under different temperatures and heating rate, microstructure Changing Pattern when solidifying, this kind of Changing Pattern can be used for the selection instructing superalloy powder rapid melting and solidification process associated hot working process parameter and material.
The object of the invention is to be achieved through the following technical solutions:
The preparation of this kind of superalloy powder rapidly solidification sample and the step of test method are:
1. the preparation of Ni-base Superalloy Powder rapidly solidification sample and a test method, is characterized in that: the method step is:
(1) inert gas atomizer or plasma rotating electrode process is adopted to prepare superalloy powder;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 1 μm ~ 200 μm;
(3) hot isostatic pressing method is adopted to carry out loose consolidation to alloy powder in jacket, hip temperature is lower 200 DEG C than this powder metallurgy superalloy routine hip moulding temperature ~ and 600 DEG C;
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become cylindric, becomes sample;
(5) sample is put into heat simulating tester, with different heating speed, sample is rapidly heated to different temperatures, insulation, cooling under protective atmosphere, heating rate scope is 5 DEG C/s ~ 1000 DEG C/s, holding temperature scope is 1000 DEG C ~ 1400 DEG C, temperature retention time is 1s ~ 6000s, be cooled to power-off air cooling ~ shrend, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
The advantage of technical solution of the present invention is:
(1) the original loose powder of alloy cannot be used for the hot modeling test machine of resistance/current flow heats mode to realize controlled large ramp process, and carry out far below the loose consolidation under conventional hip moulding temperature and alloy powder phase transition temperature to powder in jacket in the present invention, both maintain the tissue signature of single starting powder, meet again the requirement that testing machine sample state is block materials simultaneously;
(2) sample that prepared by above method can realize alloy powder under protective atmosphere heat simulating tester carry out programming rate, holding temperature and time all controllable consolidation test, the controlled large ramp realized particularly is difficult to for other method of alloy powder, the theoretical heating rate of existing equipment can reach 10000 DEG C/s, and can realize the accurate record of response fast;
(3) can means direct vision and the signs such as microscope, EBSD, X ray and electron probe be passed through through the large ramp of thermo dynamic analogy machine to the tissue of the alloy powder of different temperatures, structure and composition, be used to guide the selection (as superalloy powder 3D prints and spray deposition processing process) of the material that to adapt based on the actual production technique of superalloy powder Rapid Thermal processing technology and technique.
Embodiment
Below in conjunction with embodiment, technical solution of the present invention is described in further details.
Embodiment 1
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 45 μm ~ 63 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 800 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 6mm, and length is 40mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1000 DEG C by the firing rate of 1000 DEG C/s, temperature retention time 2s, air cooling after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 2
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 45 μm ~ 63 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 800 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 6mm, and length is 40mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1100 DEG C by the firing rate of 1000 DEG C/s, temperature retention time 2s, air cooling after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 3
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 45 μm ~ 63 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 800 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 6mm, and length is 40mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1200 DEG C by the firing rate of 1000 DEG C/s, temperature retention time 2s, air cooling after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 4
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 45 μm ~ 63 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 800 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 6mm, and length is 40mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1200 DEG C by the firing rate of 1000 DEG C/s, temperature retention time 10s, air cooling after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 5
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 63 μm ~ 75 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 800 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 10mm, and length is 50mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1200 DEG C by the firing rate of 700 DEG C/s, temperature retention time 2s, air cooling after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 6
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 63 μm ~ 75 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 800 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 10mm, and length is 50mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1000 DEG C by the firing rate of 700 DEG C/s, temperature retention time 2s, water-cooled after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 7
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 63 μm ~ 75 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 800 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 10mm, and length is 50mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1100 DEG C by the firing rate of 700 DEG C/s, temperature retention time 2s, water-cooled after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 8
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
The controlled preparation of rapidly solidification sample of described superalloy powder and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 63 μm ~ 75 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 800 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 10mm, and length is 50mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1200 DEG C by the firing rate of 700 DEG C/s, temperature retention time 2s, water-cooled after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 9
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
The controlled preparation of rapidly solidification sample of described superalloy powder and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 1 μm ~ 45 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature range of high temperature insostatic pressing (HIP) is 800 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 10mm, and length is 50mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1200 DEG C by the firing rate of 700 DEG C/s, temperature retention time 2s, air cooling after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 10
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
The controlled preparation of rapidly solidification sample of described superalloy powder and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 100 μm ~ 150 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 900 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 10mm, and length is 50mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1200 DEG C by the firing rate of 700 DEG C/s, temperature retention time 2s, air cooling after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 11
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
The controlled preparation of rapidly solidification sample of described superalloy powder and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 100 μm ~ 150 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 900 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 10mm, and length is 50mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1200 DEG C by the firing rate of 5 DEG C/s, temperature retention time 2s, water-cooled after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 12
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
The controlled preparation of rapidly solidification sample of described superalloy powder and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 100 μm ~ 150 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 900 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 10mm, and length is 50mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1200 DEG C by the firing rate of 700 DEG C/s, temperature retention time 1s, air cooling after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 13
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
The controlled preparation of rapidly solidification sample of described superalloy powder and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 100 μm ~ 150 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 900 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 10mm, and length is 50mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1200 DEG C by the firing rate of 700 DEG C/s, temperature retention time 6000s, air cooling after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 14
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
The controlled preparation of rapidly solidification sample of described superalloy powder and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 100 μm ~ 150 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 900 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 10mm, and length is 50mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1350 DEG C by the firing rate of 700 DEG C/s, temperature retention time 1s, air cooling after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Embodiment 15
The described preparation of superalloy powder rapidly solidification sample and the step of test method are:
The controlled preparation of rapidly solidification sample of described superalloy powder and the step of test method are:
(1) adopt argon gas atomization to prepare superalloy powder, the weight percent composition of alloy is: 12.9Cr-20.2Co-2.0W-3.9Mo-3.5Al-3.7Ti-1.0Nb-2.3Ta-0.02C-0 .03B-0.05Zr-surplus is Ni;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 100 μm ~ 150 μm;
(3) adopt hot isostatic pressing method to carry out loose consolidation to alloy powder in jacket, the temperature of high temperature insostatic pressing (HIP) is 900 DEG C (far below the conventional hip temperature 1170-1190 DEG C of this alloy);
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become the cylindric of appearance light, becomes sample, the diameter of sample is 10mm, and length is 50mm;
(5) sample is put into heat simulating tester, under argon atmosphere, sample is rapidly heated to 1400 DEG C by the firing rate of 700 DEG C/s, temperature retention time 1s, air cooling after power-off, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
Claims (1)
1. the preparation of Ni-base Superalloy Powder rapidly solidification sample and a test method, is characterized in that: the method step is:
(1) inert gas atomizer or plasma rotating electrode process is adopted to prepare superalloy powder;
(2) alloy powder after screening is put into stainless-steel tube jacket, degasification and soldering and sealing, the particle size range of alloy powder is 1 μm ~ 200 μm;
(3) hot isostatic pressing method is adopted to carry out loose consolidation to alloy powder in jacket, hip temperature is lower 200 DEG C than this powder metallurgy superalloy routine hip moulding temperature ~ and 600 DEG C;
(4) by after high temperature insostatic pressing (HIP), jacket sharp processing is become cylindric, becomes sample;
(5) sample is put into heat simulating tester, with different heating speed, sample is rapidly heated to different temperatures, insulation, cooling under protective atmosphere, heating rate scope is 5 DEG C/s ~ 1000 DEG C/s, holding temperature scope is 1000 DEG C ~ 1400 DEG C, temperature retention time is 1s ~ 6000s, be cooled to power-off air cooling ~ shrend, record temperature change curve in time;
(6) cut sample, obtain the microstructure of sample, phase structure and composition transfer data.
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Cited By (5)
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| CN110666175A (en) * | 2019-10-31 | 2020-01-10 | 西安欧中材料科技有限公司 | Hot isostatic pressing forming method of nickel-based high-temperature alloy powder |
| CN111238956A (en) * | 2020-01-08 | 2020-06-05 | 中南大学 | High-throughput method for powder alloy preparation and hot consolidation forming process development |
| CN111570810A (en) * | 2020-05-09 | 2020-08-25 | 中国航发北京航空材料研究院 | Preparation method of corrosion-resistant alloy powder and part for deep-sea Christmas tree |
| CN111579323A (en) * | 2020-05-09 | 2020-08-25 | 中国航发北京航空材料研究院 | High-throughput preparation and test method of powder superalloy inclusion sample |
| CN113695596A (en) * | 2021-08-18 | 2021-11-26 | 中国航发北京航空材料研究院 | Method for high-flux measurement of temperature of heat affected zone in metal powder additive manufacturing process |
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| CN110666175A (en) * | 2019-10-31 | 2020-01-10 | 西安欧中材料科技有限公司 | Hot isostatic pressing forming method of nickel-based high-temperature alloy powder |
| CN110666175B (en) * | 2019-10-31 | 2022-03-04 | 西安欧中材料科技有限公司 | Hot isostatic pressing forming method of nickel-based high-temperature alloy powder |
| CN111238956A (en) * | 2020-01-08 | 2020-06-05 | 中南大学 | High-throughput method for powder alloy preparation and hot consolidation forming process development |
| CN111238956B (en) * | 2020-01-08 | 2021-08-27 | 中南大学 | High-throughput method for powder alloy preparation and hot consolidation forming process development |
| CN111570810A (en) * | 2020-05-09 | 2020-08-25 | 中国航发北京航空材料研究院 | Preparation method of corrosion-resistant alloy powder and part for deep-sea Christmas tree |
| CN111579323A (en) * | 2020-05-09 | 2020-08-25 | 中国航发北京航空材料研究院 | High-throughput preparation and test method of powder superalloy inclusion sample |
| CN111570810B (en) * | 2020-05-09 | 2022-10-11 | 中国航发北京航空材料研究院 | Preparation method of corrosion-resistant alloy powder and part for deep-sea Christmas tree |
| CN111579323B (en) * | 2020-05-09 | 2022-11-01 | 中国航发北京航空材料研究院 | High-throughput preparation and test method of powder superalloy inclusion sample |
| CN113695596A (en) * | 2021-08-18 | 2021-11-26 | 中国航发北京航空材料研究院 | Method for high-flux measurement of temperature of heat affected zone in metal powder additive manufacturing process |
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