CN104331549B - The Optimization Design of the austempered ductile iron alloying component calculated based on Jmatpro material properties - Google Patents
The Optimization Design of the austempered ductile iron alloying component calculated based on Jmatpro material properties Download PDFInfo
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Abstract
A kind of Optimization Design of the austempered ductile iron alloying component calculated based on Jmatpro material properties, is comprised the following steps：（1）The scope for first selecting each element to change, determines each component；（2）Jmatpro softwares are opened, Cast Iron modules and associated databases are called；（3）A composition Input Software for component is selected, selects calculative material property to be calculated；（4）Calculate and terminate output curve diagram and data file；（5）It is repeated in step（3）、（4）, obtain the result of calculation of remaining component；（6）The each single item material property under heterogeneity is analyzed respectively, draws optimal composition proportion.The alloying component optimization method of this invention is simple and easy to do, there is stronger theory support, it is not necessary to which substantial amounts of examination casting and performance detection, the time of greatling save improve efficiency, reduces cost.
Description
Technical field
The invention belongs to metal material field, and in particular to for the new austempered ductile iron of train wheel, to its alloy into
The optimization design divided.
Background technology
Austempering ductile iron（Austempered Ductile Iron, abbreviation ADI）, domestic extensive shellfish referred to as difficult to understand
Magnesium iron.The steely means of isothermal quenching of its heat treatment mode very class, class is steely by austenite and very for the microstructure of acquisition
In bainite composition.Because austempered ductile iron has good comprehensive mechanical property, relatively low production cost, light weight, good
Wearability and fatigue performance, excellent vibration damping and sound absorption qualities, austempered ductile iron obtains in the developed country such as China and America and Europe
Extensive concern and attention, yield are increased with the speed per year over 15%, in railway equipment, automobile, agricultural machinery, building machinery
And the sector application such as ore deposit brand-name computer tool is extensive.
Composition is one of key factor of decision tissue, and composition is by tissue indirectly on material property generation influence.Blank
The quality and isothermal quenching technique of casting are two key factors for determining austempered ductile iron organization and performance, according to alloying component
Influence to ductile cast iron casting quality and the isothermal quenching technique of spheroidal graphite cast-iron carrys out austempered ductile iron composition and is designed.It is conventional
Method for optimizing components be requirement and material according to the working condition of workpiece to material property process industrial art performance, prepare
The alloy formula of a large amount of different components, then carries out melting examination casting, and the performance test contrast to the workpiece of each component is selected most
Excellent alloy formula.But time-consuming for this conventional method, high cost, efficiency are low.
Accordingly, it would be desirable to a kind of Optimization Design of new austempered ductile iron alloying component.
The content of the invention
It is an object of the invention to provide a kind of optimization of the austempered ductile iron alloying component calculated based on Jmatpro material properties
Method for designing, the alloying component optimization method of this invention is simple and easy to do, there is stronger theory support, it is not necessary to substantial amounts of examination casting
And performance detection, the time of greatling save improves efficiency, reduces cost.
The purpose of the present invention is achieved through the following technical solutions, a kind of Austria calculated based on Jmatpro material properties
The Optimization Design of shellfish bulb ferroalloy composition, comprises the following steps：
（1）To the optimization design of basic ingredient C, Si, Mn, P, S, the scope for first selecting each element to change determines each component；
（2）Jmatpro softwares are opened, Cast Iron modules and associated databases are called；
（3）A basic ingredient Input Software for component is selected, calculative material property option Step is selected
Temperature, sets and calculates 1400 DEG C ~ 20 DEG C of temperature range, and 10 DEG C of material calculation calculates temperature-phase composition figure；
（4）Selection calculates material property option Phases and Properties, calculates phase composition and heat in process of setting
Physical property matter, the herein change from alloying element in each phase, it can be seen that the segregation situation of element；
（5）Calculate and terminate output curve diagram and data file；
（6）It is repeated in step（3）、（4）、（5）, obtain the result of calculation of remaining component；
（7）Contrast each group result of calculation, analysis foundation composition to phase transition temperature, precipitated phase, element segregation influence, select
Optimal basic ingredient；
（8）To alloying component Ni, Mo, the main influence considered to improving quenching degree of the design of Cu, each element is first selected to change
Scope, determine each component；
（9）Alloying component is input into software, and selection calculates material property option TTT/CCT Diagrams, sets Ovshinsky
900 DEG C of body temperature, setting crystallite dimension 7.2ASTM；
（10）Repeat step（9）, the alloying component of remaining component is calculated, basic ingredient keeps constant；
（11）Calculate and terminate output curve diagram and data file, by every group of data input Origin, draw out one and own
The C curve figure of component, convenient contrast.
Compared with prior art, the invention has the advantages that：
First, Jmatpro softwares of the present invention are that a metal material PHASE DIAGRAM CALCULATION and material property simulation are soft
Part, the foundation of its all physical model based on the thermodynamic functional relations of powerful stabilization all have passed through widely tests
Card, to ensure the accuracy that material property is calculated, some coefficients used in calculating are also all by the number by experimental verification
Be given according to storehouse.The balance phase content and TTT curves of the austempered ductile iron of heterogeneity can be relatively accurately calculated, such that it is able to
It is a large amount of to save PROJECT TIME and experimental expenses.
Second, the present invention utilizes powerful reliable material property software for calculation Jmatpro, to the material of heterogeneity
Performance is calculated, according to result of calculation comparative analysis, optimized alloy composition.The alloying component optimization method of this invention is easy easily
OK, there is stronger theory support, it is not necessary to which substantial amounts of examination casting and performance detection, the time of greatling save improve efficiency, reduce
Cost.
Brief description of the drawings
Fig. 1 is the temperature-phase composition figure of frozen composition；
Fig. 2 is distribution maps of the element M n in liquid phase and austenite phase；
Fig. 3 is the perlitic transformation TTT curve maps of different Mo contents；
Fig. 4 is carboritride with Mo changes of contents curve maps.
Specific embodiment
A kind of Optimization Design of the austempered ductile iron alloying component calculated based on Jmatpro material properties, it is characterized in that,
The Optimization Design is comprised the following steps：
（1）To the optimization design of basic ingredient C, Si, Mn, P, S, the scope for first selecting each element to change determines each component；
（2）Jmatpro softwares are opened, Cast Iron modules and associated databases are called；
（3）A basic ingredient Input Software for component is selected, calculative material property option Step is selected
Temperature, sets and calculates 1400 DEG C ~ 20 DEG C of temperature range, and 10 DEG C of material calculation calculates temperature-phase composition figure, sees figure
1；
（4）Selection calculates material property option Phases and Properties, calculates phase composition and heat in process of setting
Physical property matter, the herein change from alloying element in each phase, it can be seen that the segregation situation of element, are shown in Fig. 2,3；
（5）Calculate and terminate output curve diagram and data file；
（6）It is repeated in step（3）、（4）、（5）, obtain the result of calculation of remaining component；
（7）Contrast each group result of calculation, analysis foundation composition to phase transition temperature, precipitated phase, element segregation influence, select
Optimal basic ingredient；
（8）To alloying component Ni, Mo, the main influence considered to improving quenching degree of the design of Cu, each element is first selected to change
Scope, determine each component；
（9）Alloying component is input into software, and selection calculates material property option TTT/CCT Diagrams, sets Ovshinsky
900 DEG C of body temperature, setting crystallite dimension 7.2ASTM；
（10）Repeat step（9）, the alloying component of remaining component is calculated, basic ingredient keeps constant；
（11）Calculate and terminate output curve diagram and data file, by every group of data input Origin, draw out one and own
The C curve figure of component, convenient contrast, is shown in Fig. 4.
Jmatpro softwares of the present invention, are a metal material PHASE DIAGRAM CALCULATION and material property simulation softward, it
The foundation of all physical models all have passed through extensive checking based on the thermodynamic functional relations of powerful stabilization, with true
Protect material property calculate accuracy, some coefficients used in calculating be also all by the database by experimental verification to
Go out.The balance phase content and TTT curves of the austempered ductile iron of heterogeneity can be relatively accurately calculated, such that it is able to a large amount of sections
Save PROJECT TIME and experimental expenses.
The method have the characteristics that using powerful reliable material property software for calculation Jmatpro, to heterogeneity
Material property calculate, according to result of calculation comparative analysis, optimized alloy composition.The alloying component optimization method letter of this invention
Easy row, there is stronger theory support, it is not necessary to which substantial amounts of examination casting and performance detection, the time of greatling save improve efficiency,
Reduce cost.
Claims (1)
1. it is a kind of based on Jmatpro material properties calculate austempered ductile iron alloying component Optimization Design, it is characterized in that, institute
Optimization Design is stated to comprise the following steps：
（1）To the optimization design of basic ingredient C, Si, Mn, P, S, the scope for first selecting each element to change determines each component；
（2）Jmatpro softwares are opened, Cast Iron modules and associated databases are called；
（3）A basic ingredient Input Software for component is selected, calculative material property option Step is selected
Temperature, sets and calculates 1400 DEG C ~ 20 DEG C of temperature range, and 10 DEG C of material calculation calculates temperature-phase composition figure；
（4）Selection calculates material property option Phases and Properties, calculates phase composition and hot physical property in process of setting
Matter, the herein change from alloying element in each phase, it can be seen that the segregation situation of element；
（5）Calculate and terminate output curve diagram and data file；
（6）It is repeated in step（3）、（4）、（5）, obtain the result of calculation of remaining component；
（7）Contrast each group result of calculation, influence of the analysis foundation composition to phase transition temperature, precipitated phase and element segregation is selected most
Excellent basic ingredient；
（8）To alloying component Ni, Mo, the main influence considered to improving quenching degree of the design of Cu, the model for first selecting each element to change
Enclose, determine each component；
（9）Alloying component is input into software, and selection calculates material property option TTT/CCT Diagrams, sets austenitizing
900 DEG C of temperature, setting crystallite dimension 7.2ASTM；
（10）Repeat step（9）, the alloying component of remaining component is calculated, basic ingredient keeps constant；
（11）Calculate and terminate output curve diagram and data file, by every group of data input Origin, draw out an alloying element
The C curve figure of Mo components, convenient contrast.
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| CN105568125B (en) * | 2016-01-04 | 2017-08-29 | 上海大学兴化特种不锈钢研究院 | Urban track traffic wheel is with high-strength modeling nodular cast iron alloy |
| CN109604533B (en) * | 2019-02-15 | 2020-07-14 | 莱州鸿源台钳制造有限公司 | Preparation method of austempered ductile iron bench vice |
| CN113319468B (en) * | 2021-06-16 | 2023-04-14 | 哈尔滨焊接研究院有限公司 | Component design method of nuclear power nickel-based alloy welding wire capable of preventing welding cracks and nuclear power nickel-based alloy welding wire |
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| TW469294B (en) * | 2000-05-17 | 2001-12-21 | Metal Ind Res & Dev Ct | Austempered ductile iron and method for making the same |
| EP2612930A2 (en) * | 2012-01-03 | 2013-07-10 | General Electric Company | Method of making an austempered ductile iron article |
| CN103952617A (en) * | 2014-05-14 | 2014-07-30 | 扬州大学 | Novel Austempered ductile iron train wheel material alloy and melting technique thereof |
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2014
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW469294B (en) * | 2000-05-17 | 2001-12-21 | Metal Ind Res & Dev Ct | Austempered ductile iron and method for making the same |
| EP2612930A2 (en) * | 2012-01-03 | 2013-07-10 | General Electric Company | Method of making an austempered ductile iron article |
| CN103952617A (en) * | 2014-05-14 | 2014-07-30 | 扬州大学 | Novel Austempered ductile iron train wheel material alloy and melting technique thereof |
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| "Microstructure and toughness of CuNiMo austempered ductile iron";O Eric;《Materials Letters》;20040625;第58卷(第22-23期);2708-2711页第2-3节 * |
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