CN109883876A - The method of the sample and thermal modeling test of thermal modeling test - Google Patents
The method of the sample and thermal modeling test of thermal modeling test Download PDFInfo
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Abstract
The present invention provides the methods of the sample of thermal modeling test and thermal modeling test.The shape of the sample of the thermal modeling test is truncated cone-shaped.Since the sample is different in the area of the different cross section on truncated cone-shaped axis direction, therefore when carrying out thermal modeling test using the sample, the temperature of different cross section on truncated cone-shaped axis direction, strain rate is different with strain, and after thermal deformation occurs for the sample, the microstructure and mechanical performance of different location are also different on the sample, realize simulation different temperatures, strain rate and the effect for answering variable working condition, and it can be used for simulating the heated and deformation process of various alloy materials, to improve conventional efficient, and then realize high-throughput thermal modeling test technology.
Description
Technical field
The present invention relates to field of material technology, and in particular, to the method for the sample and thermal modeling test of thermal modeling test.
Background technique
2011, the U.S. proposed innovation research and development mode, passed through the depth of " the efficient experiment-big data technology of design and rational-"
Fusion and overall process collaborative innovation, accelerate " the material genetic engineering " of new material development to plan.The key technology of the plan is height
Flux calculation method, high-throughput experimental method and material large database concept technology.Wherein high-throughput experimental method refers to design and rational
Efficient experiment under guidance improves the efficiency of experimental study by high-throughput experimental method.It is (i.e. hot to forge thermal simulation technology
Simulation test) be a kind of common simulative forging forging process method, common simulation machine has the Gleeble system in the U.S.
Column, the Thermecmaster of Japan are serial, by the way that certain temperature range and strain rate range is arranged, by the sample of processing
The forging process of compression simulation is carried out at specified temperature and strain rate.However, this traditional thermal modeling test is each
A kind of temperature and the corresponding operating condition of strain rate, inefficiency, the not big temperature gradient of convenient analog and deformation can only be simulated
The forging process of the forging of gradient.
Thus, the relevant technologies of existing thermal modeling test still have much room for improvement.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose be to propose it is a kind of in the axial direction on different cross section temperature, strain rate, strain is different, thermal change is occurring
The microstructure, mechanical performance of different location are different after shape, realize simulation different temperatures, strain rate, the effect for answering variable working condition
Fruit, the heated and deformation process that can be used for simulating various alloy materials improve conventional efficient or realize high-throughput hot-die
The sample of quasi- experimental technique.
In one aspect of the invention, the present invention provides a kind of samples of thermal modeling test.Implementation according to the present invention
Example, the shape of the sample of the thermal modeling test are truncated cone-shaped.Inventors have found that since the sample is along truncated cone-shaped axis direction
Different cross section area it is different, therefore when using sample progress thermal modeling test, along truncated cone-shaped axis direction not
It is different with the temperature in section, strain rate and strain, and after thermal deformation occurs for the sample, different location is micro- on the sample
It sees tissue and mechanical performance is also different, realize simulation different temperatures, strain rate and the effect for answering variable working condition, and can be used for
The heated and deformation process of various alloy materials is simulated, to improve conventional efficient, and then realizes high-throughput thermal modeling test
Technology.
According to an embodiment of the invention, the target size parameter of the sample through the following steps that determine: provide institute
State the preset height h of sample0And the preset height h0With the upper bottom surface radius r of the sample1, bottom radius surface r2The sum of
Default ratio k；Angle theta between the bus of the sample and bottom surface is taken into a series of different numerical value, is closed according to geometry
System, determines a series of dimensional parameters of the sample, to obtain a series of samples to be analyzed with the dimensional parameters,
In, the dimensional parameters include the preset height h0, the angle theta, the upper bottom surface radius r1With the bottom radius surface
r2；A series of samples to be analyzed are subjected to finite element analysis respectively, select the highest analysis result of heat analysis flux corresponding
The dimensional parameters, the target size parameter as the sample.
According to an embodiment of the invention, the sample with the target size parameter is suitable for by the thermal modeling test
Fixture fixed.
According to an embodiment of the invention, the preset height h0For 10mm~14mm.
According to an embodiment of the invention, the upper bottom surface radius r1More than or equal to 0.5mm and it is less than 4mm.
According to an embodiment of the invention, the bottom radius surface r2Greater than 4mm and it is less than or equal to 7.5mm.
According to an embodiment of the invention, the angle theta is greater than or equal to 60 ° and less than 90 °.
According to an embodiment of the invention, the angle theta is 80 °.
According to an embodiment of the invention, the sample meets at least one of the following conditions: when carrying out thermal modeling test,
Along the axis direction of the sample, temperature distribution gradient；When carrying out thermal modeling test, along the axis direction of the sample
On, strain distribution gradient.
According to an embodiment of the invention, the sample is suitable for Gleeble hot modeling test machine, the height of the sample is
10mm~14mm, upper bottom surface radius r1More than or equal to 0.5mm and it is less than 4mm, bottom radius surface r2Greater than 4mm and it is less than or waits
Angle theta between 7.5mm, bus and bottom surface is greater than or equal to 60 ° and less than 90 °.
In another aspect of the invention, the present invention provides a kind of methods of thermal modeling test.Reality according to the present invention
Example is applied, the thermal modeling test is carried out using mentioned-above sample.Inventors have found that this method is simple, convenient,
It is easy to accomplish, and simulation different temperatures, strain rate and the effect for answering variable working condition may be implemented, it can be used for simulating various alloys
The heated and deformation process of material, experimental efficiency is high, and high-throughput thermal modeling test may be implemented.
Detailed description of the invention
Fig. 1 shows the schematic diagram of the section structure of the sample of thermal modeling test in one embodiment of the invention.
Fig. 2 respectively illustrates sample P-P ' the section S that thermal modeling test is determined in the embodiment of Fig. 11And the section Q-Q ' S2's
Planar structure schematic diagram.
Fig. 3 shows the step of target size parameter that the sample of thermal modeling test is determined in one embodiment of the invention
Flow diagram.
Fig. 4 shows the sample photo of thermal modeling test in the embodiment of the present invention 1.
Fig. 5 shows the sample of thermal modeling test in the embodiment of the present invention 1 in the photo for carrying out thermal modeling test.
Fig. 6 shows that the sample of thermal modeling test in the embodiment of the present invention 1 when carrying out thermal modeling test, passes through the sample
The strain versus time curve of different location on the section of axis.
Fig. 7 shows that the sample of thermal modeling test in the embodiment of the present invention 1 after carrying out thermal modeling test, passes through the sample
The microstructure morphology of different location on the section of axis.
Appended drawing reference:
100: sample 200: fixture
Specific embodiment
The embodiment of the present invention is described below in detail.The embodiments described below is exemplary, and is only used for explaining this hair
It is bright, and be not considered as limiting the invention.Particular technique or condition are not specified in embodiment, according to text in the art
It offers described technology or conditions or is carried out according to product description.Reagents or instruments used without specified manufacturer,
For can be with conventional products that are commercially available.
In one aspect of the invention, the present invention provides a kind of samples of thermal modeling test.Implementation according to the present invention
Example, referring to Fig.1 and Fig. 4, the shape of the sample 100 of the thermal modeling test are truncated cone-shaped.Inventors have found that due to the sample 100
It is different (for example, referring to Fig. 1 and figure in the area of the different cross section on truncated cone-shaped axis (as shown in figure 1 shown in dotted line ab) direction
2, P-P ' section S1And the section Q-Q ' S2Area it is significantly different and any on the direction truncated cone-shaped axis ab in the sample 100
Position takes two different sections, and area is also different), therefore when carrying out thermal modeling test using the sample 100, along rotary table
The temperature of different cross section on the direction shape axis ab, strain rate and strain are different, and the sample 100 occur thermal deformation with
Afterwards, the microstructure and mechanical performance of different location are also different on the sample 100, realize simulation different temperatures, strain rate
With answer the effect of variable working condition, and can be used for simulating the heated and deformation process of various alloy materials, to improve conventional efficient,
And then realize high-throughput thermal modeling test technology.
According to an embodiment of the invention, the size of the sample 100 is not particularly restricted, as long as the shape of the sample 100
For truncated cone-shaped, simulation different temperatures, strain rate and the effect for answering variable working condition can be realized, and can be used for simulating various alloys
The heated and deformation process of material to improve conventional efficient, and then realizes the technology effect of high-throughput thermal modeling test technology
Fruit.In other words, the angle etc. between the upper bottom surface radius of the truncated cone-shaped, bottom radius surface, height and bus and bottom surface
Dimensional parameters, those skilled in the art can carry out flexible choice according to actual needs.
According to an embodiment of the invention, further, it is right for different brands, the hot modeling test machine of different model
It is different in the requirement of the dimensional parameters of the sample of thermal modeling test, main reason is that the ruler of the fixture of hot modeling test machine
Very little needs are matched with the size of sample, but the size of the fixture of different hot modeling test machines is different.Therefore, the present invention is being utilized
When the sample carries out thermal modeling test, need further to be selected according to the brand and model of used hot modeling test machine
Select the dimensional parameters of the sample.
According to an embodiment of the invention, referring to Figure 1 and Figure 3, the target size parameter of the sample 100 is by following step
Suddenly determine (it should be noted that target size parameter herein refers to examination when being used to carry out thermal modeling test for the sample
The dimensional parameters of sample):
S100: the preset height h of the sample 100 is provided0And the preset height h0With the upper bottom of the sample 100
Radius surface r1, bottom radius surface r2The sum of default ratio k.
According to an embodiment of the invention, mentioned-above preset height h0With default ratio k, can according to different brands,
Requirement of the hot modeling test machine of different model for the dimensional parameters of the sample of thermal modeling test obtains.As a result, by not
Same brand, different model hot modeling test machine for thermal modeling test sample dimensional parameters requirement, obtain the examination
The preset height h of sample 1000With default ratio k, with the other sizes parameter being used in representing sample 100, to solve examination
Other sizes parameter in sample 100.
According to an embodiment of the invention, being obtained by noted earlier, different brands, the thermal modeling test of different model can be passed through
Requirement of the machine for the dimensional parameters of the sample of thermal modeling test obtains the preset height h of the sample 1000With default ratio k
Specific value, and have:
The default ratio k can be used for the other sizes parameter in representing sample 100 as a result, to solve sample 100
In other sizes parameter.
S200: the angle theta between the bus and bottom surface of the sample 100 is taken into a series of different numerical value, according to several
What relationship, determines a series of dimensional parameters of the sample, to obtain a series of samples to be analyzed with the dimensional parameters,
Wherein, the dimensional parameters include the preset height h0, the angle theta, the upper bottom surface radius r1With the bottom radius surface
r2。
According to an embodiment of the invention, specifically, referring to Fig.1, can be obtained by plane geometry relationship, the mother of the sample 100
Angle theta, preset height h between line and bottom surface0With the upper bottom surface radius r of the sample 1001, the bottom radius surface r2It
Between relational expression, it may be assumed that
According to mentioned-above formula (1) and formula (2), can obtain:
Formula (3) is with the angle theta between the bus and bottom surface of mentioned-above sample 100, preset height h as a result,0
The upper bottom surface radius r of the sample 100 is indicated with default ratio k1, the bottom radius surface r2。
According to an embodiment of the invention, due to preset height h0Being with default ratio k can be by different brands, difference
The numerical value of requirement obtained determination of the hot modeling test machine of model for the dimensional parameters of the sample 100 of thermal modeling test,
Therefore according to formula (3), the angle theta between the bus and bottom surface of the sample 100 is taken into a series of different numerical value, it can be true
A series of dimensional parameters of the fixed sample 100, wherein the dimensional parameters include the preset height h0, the angle theta,
The upper bottom surface radius r1With the bottom radius surface r2, and then a series of samples to be analyzed with the dimensional parameters are obtained,
In favor of the target size parameter of the determination sample 100.
S300: a series of samples to be analyzed are subjected to finite element analysis respectively, select highest point of heat analysis flux
Analyse the corresponding dimensional parameters of result, the target size parameter as the sample 100.
According to an embodiment of the invention, being exactly by the examination represented by the highest analysis result of heat analysis flux herein
When sample 100 carries out a thermal modeling test, have different temperatures, strain rate, the different location of strain most in sample 100
Sample it is corresponding it is described analysis as a result, and the sample 100 occur thermal deformation after, on the sample have diverse microcosmic tissue
The analysis corresponding with the different location of mechanical performance also most sample is as a result, select highest point of above-mentioned heat analysis flux
Analyse the corresponding dimensional parameters of result, as the target size parameter of the sample 100, thus using the sample 100 into
When row thermal modeling test, the position in different operating conditions is most, has different temperatures, strain rate along truncated cone-shaped axis direction
It is most with the different location of strain, and after thermal deformation occurs for the sample, there is diverse microcosmic tissue and machinery on the sample
The different location of performance is also most, so that simulation different temperatures, strain rate and the effect for answering variable working condition is furthermore achieved, and
It can be used for simulating the heated and deformation process of various alloy materials, to further increase conventional efficient, and then further real
Existing high-throughput thermal modeling test technology.
According to an embodiment of the invention, the method for carrying out finite element analysis is not particularly limited, such as can use
Deform 3D finite element analysis software carries out mentioned-above finite element analysis, no longer excessively repeats herein.
According to an embodiment of the invention, making obtained thermal simulation examination after the target size parameter determined by above-mentioned steps
The sample 100 tested is suitable for being fixed by the fixture 200 of the thermal modeling test referring to Fig. 5, and is carrying out thermal modeling test
When, the position in different operating conditions is most, has different temperatures, strain rate and the difference of strain along truncated cone-shaped axis direction
Position is most, and after thermal deformation occurs for the sample, with the different positions of diverse microcosmic tissue and mechanical performance on the sample
It sets also at most, so that simulation different temperatures, strain rate and the effect for answering variable working condition be furthermore achieved, and can be used for simulating
The heated and deformation process of various alloy materials to further increase conventional efficient, and then further realizes high-throughput heat
Modelling technique.
According to an embodiment of the invention, the preset height h0It can be 10mm~14mm.In some implementations of the invention
In example, the preset height h0It can be specially 10mm, 11mm, 12mm, 13mm or 14mm etc..The sample 100 is suitable for as a result,
It is fixed by the fixture 200 of the thermal modeling test, and when carrying out thermal modeling test, the position in different operating conditions is more, edge
Have different temperatures, strain rate and the different location of strain more on truncated cone-shaped axis direction, and thermal deformation occurs in the sample
After, the different location with diverse microcosmic tissue and mechanical performance on the sample is also more, so that simulation be furthermore achieved not
Synthermal, strain rate and the effect for answering variable working condition, and can be used for simulating the heated and deformation process of various alloy materials, from
And conventional efficient is further increased, and then further realize high-throughput thermal modeling test technology.
According to an embodiment of the invention, the upper bottom surface radius r10.5mm can be greater than or equal to and be less than 4mm.At this
In some embodiments of invention, the upper bottom surface radius r1Can be specially 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm or
Person 3.5mm etc..The sample 100 is suitable for being fixed by the fixture 200 of the thermal modeling test as a result, and is carrying out thermal simulation examination
When testing, the position in different operating conditions is more, has different temperatures, strain rate and the difference of strain along truncated cone-shaped axis direction
Position is more, and after thermal deformation occurs for the sample, with the different location of diverse microcosmic tissue and mechanical performance on the sample
Also more, so that simulation different temperatures, strain rate and the effect for answering variable working condition be furthermore achieved, and can be used for simulating various
The heated and deformation process of alloy material to further increase conventional efficient, and then further realizes high-throughput thermal simulation
Experimental technique.
According to an embodiment of the invention, the bottom radius surface r24mm can be greater than and be less than or equal to 7.5mm.At this
In some embodiments of invention, the bottom radius surface r2Can be specially 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm or
Person 7.5mm, etc..The sample 100 is suitable for being fixed by the fixture 200 of the thermal modeling test as a result, and is carrying out thermal simulation examination
When testing, the position in different operating conditions is more, has different temperatures, strain rate and the difference of strain along truncated cone-shaped axis direction
Position is more, and after thermal deformation occurs for the sample, with the different location of diverse microcosmic tissue and mechanical performance on the sample
Also more, so that simulation different temperatures, strain rate and the effect for answering variable working condition be furthermore achieved, and can be used for simulating various
The heated and deformation process of alloy material to further increase conventional efficient, and then further realizes high-throughput thermal simulation
Experimental technique.
According to an embodiment of the invention, the angle theta is greater than or equal to 60 ° and less than 90 °.In some implementations of the invention
In example, the angle theta can be specially 60 °, 65 °, 70 °, 75 °, 80 ° or 85 ° etc..Further, the angle theta can be with
It is 80 °.The sample 100 is suitable for being fixed by the fixture 200 of the thermal modeling test as a result, and when carrying out thermal modeling test,
Position in different operating conditions is more, has different temperatures, strain rate and the different location of strain along truncated cone-shaped axis direction
It is more, and after thermal deformation occurs for the sample, the different location with diverse microcosmic tissue and mechanical performance on the sample is also more,
To which simulation different temperatures, strain rate and the effect for answering variable working condition be furthermore achieved, and it can be used for simulating various alloys
The heated and deformation process of material to further increase conventional efficient, and then further realizes high-throughput thermal modeling test
Technology.
According to an embodiment of the invention, the sample 100 is suitable for the hot modeling test machine of various brands and model.At this
In some embodiments of invention, the sample 100 is especially suitable for Gleeble hot modeling test machine, especially Gleeble-
1500D hot modeling test machine.
According to an embodiment of the invention, the sample 100 is suitable for simulating the heated and deformation process of various alloy materials.
In some embodiments of the invention, the sample 100 especially suitable for the heated of simulation mould steel 5CrNiMoV and deformed
Journey.
According to an embodiment of the invention, the sample 100 of thermal modeling test of the present invention, referring to Fig. 5, in sample 100
Inside take a bit of infinitesimal, the length is Δ l, then have following formula:
Wherein, Δ Q is the heat generated on infinitesimal, I be by electric current, the Δ R of sample is the resistance of infinitesimal, ρ is sample
100 resistivity, S are the cross-sectional area of sample 100, t is conduction time.From the above equation, we can see that if at two of the sample 100
Different positions takes two infinitesimals with equal length Δ l respectively, with two different locations with equal length Δ l
Infinitesimal is research object, for the infinitesimal different for two, due to identical, the resistance Δ of infinitesimal by the electric current I of sample 100
R, the electricalresistivityρ of sample 100 and conduction time t heat Δ Q all the same, thus being generated on two different infinitesimals, only with
The cross-sectional area S that position where the infinitesimal is located at 100 section of sample is related (it should be noted that those skilled in the art
Member is it is appreciated that cross-sectional area described herein is the face of the mentioned-above different cross section on truncated cone-shaped axis direction
Product).Therefore, the sample 100 when carrying out thermal modeling test, along the axis direction of the sample 100, divide in gradient by temperature
Cloth so that simulation different temperatures, strain rate and the effect for answering variable working condition be furthermore achieved, and can be used for simulating various conjunctions
The heated and deformation process of golden material to further increase conventional efficient, and then further realizes high-throughput thermal simulation examination
Test technology.
According to an embodiment of the invention, due to the sample the different cross section on truncated cone-shaped axis direction area not
Together, therefore when carrying out uniaxial compression thermal modeling test using the sample, the cross-sectional area S in 100 section of sample is lesser
Position deflection is big；The biggish position deflection of cross-sectional area S in 100 section of sample is small.Thus, the sample 100 into
When row thermal modeling test, along the axis direction of the sample 100, distribution gradient is strained, so that simulation be furthermore achieved
Different temperatures, strain rate and the effect for answering variable working condition, and can be used for simulating the heated and deformation process of various alloy materials,
To further increase conventional efficient, and then further realize high-throughput thermal modeling test technology.
In another aspect of the invention, the present invention provides a kind of methods of thermal modeling test.Reality according to the present invention
Example is applied, the thermal modeling test is carried out using mentioned-above sample.Inventors have found that this method is simple, convenient,
It is easy to accomplish, and simulation different temperatures, strain rate and the effect for answering variable working condition may be implemented, it can be used for simulating various alloys
The heated and deformation process of material, experimental efficiency is high, and high-throughput thermal modeling test may be implemented.
According to an embodiment of the invention, in addition to step noted earlier, it will be understood by those skilled in the art that the thermal simulation
The method of test further includes the steps that conventional hot-die also can be selected in other conventional thermal modeling tests, equipment used, instrument etc.
Equipment, instrument in quasi- test, no longer excessively repeat herein.
The embodiment of the present invention is described below in detail.
Embodiment 1
The target size of the sample of clearly fixed thermal modeling test of the present invention for by taking mould steel 5CrNiMoV as an example
The step of parameter.
Firstly, the requirement according to the fixture in Gleeble-1500D hot modeling test machine to specimen size, determines and provides examination
The preset height h of sample0For the 12mm and upper bottom surface radius r of sample1, bottom radius surface r2The sum of with the preset height h0's
Default ratio k is 1.5, then has:
h0=12mm；
, r1+r2=8mm；
Then, it is determined that the angle theta between sample bus and bottom surface, according to:
And r1+r2=8
It obtains:
60 °~85 ° of angle theta between sample bus and bottom surface are simulated using finite element analysis software (Deform 3D)
Deformation, specific size parameter is as shown in table 1.
Specific size parameter when angle between 1 sample bus of table and bottom surface is 60 °~85 °
According to Finite element analysis results, the corresponding dimensional parameters of the highest analysis result of heat analysis flux, i.e. bus are selected
Dimensional parameters when angle theta=80 ° between bottom surface, as sample target size parameter (the target size parameter
Sample, for the strain versus time curve of different location referring to Fig. 6), which includes: preset height h0For
12mm, angle theta=80 ° between bus and bottom surface, upper bottom surface radius r1=5.058mm；Go to the bottom radius surface r2=2.942mm.
The sample 100 that is formed by mould steel 5CrNiMoV is processed according to target size parameter, and (structural schematic diagram is referring to figure
4)。
The sample 100 processed is fixed with fixture 200 on Gleeble 1500D thermal simulation machine, carry out thermal simulation examination
It tests and (carries out the schematic diagram of device when thermal modeling test referring to Fig. 5).
Microstructure will be cut and observed along axis by the sample 100 of thermal modeling test, study different microstructures
(as shown in fig. 7, the microstructure at point A, point B, point C and point D is different, wherein the length of scale is 100 μm), Jin Ershi
Showed simulation different temperatures, strain rate and the effect for answering variable working condition, and can be used for simulating the heated of various alloy materials and
Deformation process to improve conventional efficient, and then realizes high-throughput thermal modeling test technology.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of sample of thermal modeling test, which is characterized in that the shape of the sample is truncated cone-shaped.
2. sample according to claim 1, which is characterized in that the target size parameter of the sample through the following steps that
Determining:
The preset height h of the sample is provided0And the upper bottom surface radius r of the sample1, bottom radius surface r2The sum of with it is described
Preset height h0Default ratio k；
Angle theta between the bus of the sample and bottom surface is taken into a series of different numerical value, according to geometrical relationship, determines institute
A series of dimensional parameters of sample are stated, to obtain a series of samples to be analyzed with the dimensional parameters, wherein the size
Parameter includes the preset height h0, the angle theta, the upper bottom surface radius r1With the bottom radius surface r2；
A series of samples to be analyzed are subjected to finite element analysis respectively, select the highest analysis result of heat analysis flux corresponding
The dimensional parameters, the target size parameter as the sample.
3. sample according to claim 2, which is characterized in that with the target size parameter the sample be suitable for by
The fixture of the thermal modeling test is fixed.
4. sample according to claim 3, which is characterized in that the preset height h0For 10mm~14mm.
5. sample according to claim 3 or 4, which is characterized in that the upper bottom surface radius r1More than or equal to 0.5mm and
Less than 4mm.
6. sample according to claim 3 or 4, which is characterized in that the bottom radius surface r2Greater than 4mm and it is less than or waits
In 7.5mm.
7. sample according to claim 3, which is characterized in that the angle theta is greater than or equal to 60 ° and less than 90 °, optionally
Ground, the angle theta are 80 °.
8. sample according to claim 1, which is characterized in that the sample meets at least one of the following conditions:
When carrying out thermal modeling test, along the axis direction of the sample, temperature distribution gradient；
When carrying out thermal modeling test, along the axis direction of the sample, distribution gradient is strained.
9. sample according to claim 1, which is characterized in that the sample is suitable for Gleeble hot modeling test machine, institute
The height for stating sample is 10mm~14mm, upper bottom surface radius r1More than or equal to 0.5mm and it is less than 4mm, bottom radius surface r2It is greater than
4mm and the angle theta being less than or equal between 7.5mm, bus and bottom surface are greater than or equal to 60 ° and less than 90 °.
10. a kind of method of thermal modeling test, which is characterized in that the thermal modeling test is using any in claim 1~9
What the sample described in carried out.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900560A (en) * | 2019-03-05 | 2019-06-18 | 中国科学院金属研究所 | A kind of metal material deformation-membership credentials test method based on taper type sample |
| CN111521491A (en) * | 2020-04-22 | 2020-08-11 | 中国人民解放军国防科技大学 | Temperature-strain high-flux aging test device |
| WO2021092739A1 (en) * | 2019-11-12 | 2021-05-20 | 常德菲尔美化工技术有限公司 | Method for determining quenching for alloy material |
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| CN103993249A (en) * | 2014-05-19 | 2014-08-20 | 西北工业大学 | Experimental method for isothermal local loading formation of titanium alloy |
| CN104729962A (en) * | 2015-02-13 | 2015-06-24 | 西北工业大学 | CH4169 alloy forging piece grain size analysis and predication method |
| CN107084888A (en) * | 2017-04-15 | 2017-08-22 | 江阴兴澄特种钢铁有限公司 | A kind of strain inducing crackle（SICO）Optimization can forgeability optimum temperature range method |
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| SU787944A1 (en) * | 1978-11-09 | 1980-12-15 | Предариятие П/Я В-2120 | Method of heat compression testing of moulding sand specimens |
| CN103993249A (en) * | 2014-05-19 | 2014-08-20 | 西北工业大学 | Experimental method for isothermal local loading formation of titanium alloy |
| CN104729962A (en) * | 2015-02-13 | 2015-06-24 | 西北工业大学 | CH4169 alloy forging piece grain size analysis and predication method |
| CN107084888A (en) * | 2017-04-15 | 2017-08-22 | 江阴兴澄特种钢铁有限公司 | A kind of strain inducing crackle（SICO）Optimization can forgeability optimum temperature range method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109900560A (en) * | 2019-03-05 | 2019-06-18 | 中国科学院金属研究所 | A kind of metal material deformation-membership credentials test method based on taper type sample |
| CN109900560B (en) * | 2019-03-05 | 2021-05-18 | 中国科学院金属研究所 | Metal material deformation-structure relation testing method based on frustum-shaped sample |
| WO2021092739A1 (en) * | 2019-11-12 | 2021-05-20 | 常德菲尔美化工技术有限公司 | Method for determining quenching for alloy material |
| CN111521491A (en) * | 2020-04-22 | 2020-08-11 | 中国人民解放军国防科技大学 | Temperature-strain high-flux aging test device |
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