CN113552053A - Method for determining accelerated corrosion equivalent relation of protective coating - Google Patents
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Abstract
The invention discloses a method for determining the accelerated corrosion equivalent relation of a protective coating, which comprises the following steps: s1: carrying out quantitative evaluation on aging corrosion damage of the protective coating in a laboratory and an external field; s2: establishing a laboratory accelerated aging corrosion damage dynamic model and an aging corrosion damage dynamic model in an external field exposure or actual service environment; s3: respectively estimating curve parameters in a laboratory accelerated aging corrosion damage dynamic model and an aging corrosion damage dynamic model in an external field exposure or actual service environment; s4: and determining the equivalent relation according to the curve parameters estimated by the two models. The method not only can determine the equivalent relation more accurately and comprehensively, but also can reflect the change of the performance of the protective coating along with the use time.
Description
Technical Field
The invention belongs to the technical field of protective coatings, and particularly relates to a method for determining an accelerated corrosion equivalent relation of a protective coating.
Background
(1) Importance of researching corrosion resistance of protective coating
Metal structures (such as aircraft structures, marine structures, ships, chemical structures, electric power structures, etc.) can endure harsh use environment conditions for a long time in the use process, and high temperature, high humidity, salt fog, acid rain, corrosive gas and other various chemical media in the use environment can cause corrosion damage to metal materials/structures, thereby causing serious safety and economic problems.
Slowing down or preventing the corrosion damage of metal materials/structures in the use environment is always a concern in the theoretical and engineering fields, and the protective coating is an effective anticorrosion measure and mainly plays a role in isolating the external environment so as to realize the function of slowing down or preventing corrosion. However, in the using process of the protective coating, the protective coating can be aged and further fails due to the action of external environmental factors, and the protective effect on the metal matrix is lost. For this reason, it is of great importance to study and evaluate the properties of protective coating systems.
(2) Significance of accelerated Corrosion (aging) test
The most reliable method for researching the performance of the protective coating is to carry out field test, but because the structure has long service time, the field test is long in period and high in cost, and thus an accelerated corrosion test method is urgently needed to be established. At present, a systematic accelerated corrosion test method is formed at home and abroad aiming at typical metal and nonmetal materials, such as ASTM series standards. Provides powerful support for evaluating the performance of the protective coating.
(3) Core problem of accelerated corrosion test
Accelerated corrosion testing has 2 core problems:
the environment spectrum of the accelerated corrosion test.
② equivalence relation AF. The equivalence relation AF refers to the relation between the time T of the external field service and the time T of the accelerated corrosion test when the damage D of the accelerated corrosion test is the same as the damage D of the external field corrosion (aging).
Among the 2 core problems mentioned above, the research results on the environmental spectrum of the accelerated corrosion test are very much, but the protective coating has the following characteristics:
firstly, corrosion (aging) damage features are various and cannot be characterized by a single damage amount;
secondly, the corrosion (aging) damage is difficult to quantify;
③ corrosion (aging) damage changes with time.
The equivalent relationship is difficult to determine due to the characteristics, and the existing equivalent relationship determination methods generally comprise three methods: the method comprises the steps of determining a method based on an equivalent relation of a light loss rate and a chromatic aberration; secondly, describing the aging damage of the protective coating by adopting alternating current impedance (EIS); and thirdly, corrosion degree comparison method.
However, the existing equivalent relation determination method has the following problems:
(1) the amount of corrosion was not clear. For metal materials, the corrosion damage condition of the materials can be described by weight loss, weight increment, corrosion pit size and the like, but the corrosion damage forms of the protective coating are various, and how to accurately and reasonably represent the aging characteristic of the protective coating is a very important problem. The existing method for describing the aging damage of the protective coating is too one-sided, so that the aging characteristic of the protective coating cannot be accurately described;
(2) the corrosion degree comparison method belongs to a qualitative method, and is difficult to accurately describe the quantitative relation of different environments;
(3) dynamic features are difficult to describe.
Therefore, how to provide a method for determining the relationship between the equivalent weight of the accelerated corrosion of the protective coating is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a method for determining the equivalent relation of accelerated corrosion of a protective coating, which not only can determine the equivalent relation more accurately and comprehensively, but also can reflect the change of the performance of the protective coating along with the use time.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method of determining an accelerated corrosion equivalence relationship for a protective coating, comprising the steps of:
s1: carrying out quantitative evaluation on aging corrosion damage of the protective coating in a laboratory and an external field;
s2: establishing a laboratory accelerated aging corrosion damage dynamic model and an aging corrosion damage dynamic model in an external field exposure or actual service environment;
s3: respectively estimating curve parameters in a laboratory accelerated aging corrosion damage dynamic model and an aging corrosion damage dynamic model in an external field exposure or actual service environment;
s4: and determining the equivalent relation according to the curve parameters estimated by the two models.
Preferably, determining the judgment factors of the aging damage according to the corrosion damage form of the protective coating, determining the evaluation level corresponding to each judgment factor according to the aging requirement of the protective coating, then establishing the membership function relationship of the judgment factors and the evaluation levels by adopting a fuzzy comprehensive judgment method, constructing a matrix, comprehensively quantifying the aging damage degree of the protective coating by combining the weight of each judgment factor, and realizing the quantitative evaluation of the aging corrosion damage of the protective coating in a laboratory and an external field.
Preferably, the method for establishing the laboratory accelerated aging corrosion damage kinetic model comprises the following steps:
evaluating the aging corrosion damage d of the protective coating under the environment condition of the accelerated aging corrosion test by using a quantitative evaluation method, and describing the change rule of the aging corrosion damage along with the time t by using the following formula
d＝d0ebt (1)
In the formula (d)0Is an initial lesion; t is accelerated aging corrosion time; and b is the accelerated aging corrosion curve parameter.
Preferably, the method for establishing the dynamic model of the aging corrosion damage in the external field exposure or actual service environment comprises the following steps:
evaluating aging corrosion damage D of the protective coating under the external field exposure or actual service environment by using a quantitative evaluation method, and describing the change rule of the aging corrosion damage along with time T by using the following formula
D＝d0eBT (2)
In the formula (d)0Is an initial lesion; t is the atmospheric exposure time; and B is an external field curve parameter.
Preferably, the accelerated aging corrosion curve parameter and the external field curve parameter are estimated according to the data volume of the external field exposure or the actual service environment in two cases.
Preferably, the data volume (T, D) is exposed to the external field or in the actual service environmentjWhen (j is 1, …, m), m is less than or equal to 3;
firstly, corrosion kinetic parameter estimation under accelerated corrosion environment
Obtaining an aging corrosion damage result d under different accelerated corrosion periods t by a comprehensive rating method according to test results of a plurality of periods of accelerated corrosion in a laboratory to obtain (t, d)j(j ═ 1, …, n) data, the parameters were estimated by linear regression using logarithms on both sides of equation (1), and the results were as follows:
in the formula (I), the compound is shown in the specification,
d0,tfor d obtained by estimation0A value; n is the data volume under laboratory conditions;
② the aging, corrosion and damage of the protective coating under the external field exposure or actual service environment
Obtaining an aging corrosion damage result D under different ages T by adopting a comprehensive rating method according to the aging corrosion damage test result of the protective coating under the external field exposure or actual service environment to obtain (T, D)j(j ═ 1, …, m) data, which was low, were estimated as follows:
take d in formula (2)0Is d in formula (3)0,tComposed of (T, D)j(j ═ 1, …, m) parameter estimation was performed by a unary linear regression method, and the results were as follows:
in the formula, m is the data volume of the external field exposure or the actual service environment;
③ determination of d0Value of
Re-estimating B and B values
The B and B values are re-estimated as follows:
preferably, the data volume (T, D) is exposed to the external field or in the actual service environmentjWhen j is more than 1, …, m, i.e. m is more than or equal to 3;
1) preliminary estimation of corrosion kinetic parameters in accelerated corrosion environments
Obtaining an aging corrosion damage result d under different accelerated corrosion periods t by adopting a comprehensive rating method according to the accelerated corrosion test result to obtain (t, d)jThe linear regression of the (j ═ 1, …, n) data with logarithms on both sides of equation (2) was used to estimate the parameters, as follows:
in the formula (I), the compound is shown in the specification,
d0,tfor d obtained by estimation0A value; n is the data volume under laboratory conditions;
2) protective coating aging corrosion damage under atmospheric exposure or service environment
Take d in formula (2)0Is d in formula (3)0,tComposed of (T, D)j(j ═ 1, …, m) parameter estimation was performed by a unary linear regression method, and the results were as follows:
in the formula (I), the compound is shown in the specification,
d0,Tfor d obtained by estimation0A value;
3) determination of d0Value of
4) Re-estimating B and B values
The B and B values are re-estimated as follows:
preferably, if the corrosion damage is set to be the same for the accelerated corrosion time T and the external field time T, the following are provided:
and calculating the equivalent relation AF from the estimated B and B.
The invention has the beneficial effects that:
the invention provides a protective coating accelerated corrosion equivalent relation determination method based on quantitative evaluation of protective coating aging damage and corrosion dynamics rules, comprehensively reflects various aging corrosion damage characteristics of a protective coating, and is more accurate and comprehensive than an equivalent relation determination method based on a single corrosion amount; compared with the traditional corrosion degree comparison method, the method reflects the change of the performance of the protective coating along with the use time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of the method of the present invention.
FIG. 2 is a view showing a structure of a connection test piece.
FIG. 3 is an environmental spectrum of an accelerated corrosion test of the protective coating.
Wherein, in the figure,
1-test piece one; 2-test piece two; 3-test piece three.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to FIG. 1, the present invention provides a method for determining the equivalent relationship of accelerated corrosion of a protective coating, comprising the steps of:
s1: and carrying out quantitative evaluation on aging corrosion damage of the protective coating in a laboratory and an external field. Determining the judging factors of the aging damage according to the corrosion damage form of the protective coating, determining the evaluation level corresponding to each judging factor according to the aging requirement of the protective coating, then establishing the membership function relationship of the judging factors and the evaluation level by adopting a fuzzy comprehensive judging method, constructing a matrix, comprehensively quantifying the aging damage degree of the protective coating by combining the weight of each judging factor, and realizing the quantitative evaluation of the aging corrosion damage of the protective coating in a laboratory and an external field.
S2: establishing a laboratory accelerated aging corrosion damage dynamic model and an aging corrosion damage dynamic model in an external field exposure or actual service environment;
s3: respectively estimating curve parameters in a laboratory accelerated aging corrosion damage dynamic model and an aging corrosion damage dynamic model in an external field exposure or actual service environment;
s4: and determining the equivalent relation according to the curve parameters estimated by the two models.
The method for establishing the laboratory accelerated aging corrosion damage kinetic model comprises the following steps:
evaluating the aging corrosion damage d of the protective coating under the environment condition of the accelerated aging corrosion test by using a quantitative evaluation method, and describing the change rule of the aging corrosion damage along with the time t by using the following formula
d＝d0ebt (1)
In the formula (d)0Is an initial lesion; t is accelerated aging corrosion time; and b is the accelerated aging corrosion curve parameter.
The method for establishing the aging corrosion damage dynamic model under the external field exposure or actual service environment comprises the following steps:
evaluating aging corrosion damage D of the protective coating under the external field exposure or actual service environment by using a quantitative evaluation method, and describing the change rule of the aging corrosion damage along with time T by using the following formula
D＝d0eBT (2)
In the formula (d)0Is an initial lesion; t is the atmospheric exposure time; and B is an external field curve parameter.
According to the data volume of the external field exposure or the actual service environment, the accelerated aging corrosion curve parameter and the external field curve parameter are estimated in two situations.
Data volume (T, D) when exposed to external field or in actual service environmentjWhen (j is 1, …, m), m is less than or equal to 3;
firstly, corrosion kinetic parameter estimation under accelerated corrosion environment
Obtaining an aging corrosion damage result d under different accelerated corrosion periods t by a comprehensive rating method according to test results of a plurality of periods of accelerated corrosion in a laboratory to obtain (t, d)j(j ═ 1, …, n) data, the parameters were estimated by linear regression using logarithms on both sides of equation (1), and the results were as follows:
in the formula (I), the compound is shown in the specification,
d0,tfor d obtained by estimation0A value; n is the data volume under laboratory conditions;
② the aging, corrosion and damage of the protective coating under the external field exposure or actual service environment
Obtaining an aging corrosion damage result D under different ages T by adopting a comprehensive rating method according to the aging corrosion damage test result of the protective coating under the external field exposure or actual service environment to obtain (T, D)j(j ═ 1, …, m) data, which was low, were estimated as follows:
take d in formula (2)0Is d in formula (3)0,tComposed of (T, D)j(j ═ 1, …, m) parameter estimation was performed by a unary linear regression method, and the results were as follows:
in the formula, m is the data volume of the external field exposure or the actual service environment;
③ determination of d0Value of
Re-estimating B and B values
The B and B values are re-estimated as follows:
data volume (T, D) when exposed to external field or in actual service environmentjWhen j is more than 1, …, m, i.e. m is more than or equal to 3;
1) preliminary estimation of corrosion kinetic parameters in accelerated corrosion environments
Obtaining an aging corrosion damage result d under different accelerated corrosion periods t by adopting a comprehensive rating method according to the accelerated corrosion test result to obtain (t, d)jThe linear regression of the (j ═ 1, …, n) data with logarithms on both sides of equation (2) was used to estimate the parameters, as follows:
in the formula (I), the compound is shown in the specification,
d0,tfor d obtained by estimation0A value; n is the data volume under laboratory conditions;
2) protective coating aging corrosion damage under atmospheric exposure or service environment
Take d in formula (2)0Is d in formula (3)0,tComposed of (T, D)j(j ═ 1, …, m) parameter estimation was performed by a unary linear regression method, and the results were as follows:
in the formula (I), the compound is shown in the specification,
d0,Tfor d obtained by estimation0A value;
3) determination of d0Value of
4) Re-estimating B and B values
The B and B values are re-estimated as follows:
the method for determining the equivalence relation according to the curve parameters estimated by the two models comprises the following steps: according to the set accelerated corrosion T time and the corrosion damage of the external field T time are the same, the following steps are provided:
and calculating the equivalent relation AF from the estimated B and B.
The invention provides a protective coating accelerated corrosion equivalent relation determination method based on quantitative evaluation of protective coating aging damage and corrosion dynamics rules, comprehensively reflects various aging corrosion damage characteristics of a protective coating, and is more accurate and comprehensive than an equivalent relation determination method based on a single corrosion amount; compared with the traditional corrosion degree comparison method, the method reflects the change of the performance of the protective coating along with the use time.
Test examples
(1) Test piece
Fig. 2 is a connection test piece structure diagram, and accelerated corrosion tests are performed on a first test piece 1, a second test piece 2 and a third test piece 3 in the connection test piece, and table 1 is an initial state table of a connecting piece.
TABLE 1
(2) Accelerated corrosion test results
The test environment spectrum is accelerated, as shown in FIG. 3.
Results of the test
The results of the 6 cycle accelerated corrosion test are shown in the following tables, with tables 2 and 3 showing the results of the accelerated aging test:
TABLE 2
TABLE 3
③ single item quantification result
Table 4 shows the quantitative results of the aging damage
TABLE 4 comprehensive quantitative evaluation results, see TABLE 5.
| Test piece | Period 1 | Period 2 | |
Period 4 | Period 5 | Period 6 |
| LLG | 0.51 | 0.9 | 1.56 | 2.42 | 3.46 | 5 |
TABLE 5
Fifthly, obtaining a test piece LLG test piece according to the change rule of the accelerated aging corrosion result of the test piece along with time by the corrosion dynamics rule fitting: d-0.4074 e0.432t
(3) Results of field test
(iv) test conditions Natural solarization test results see Table 6
TABLE 6 quantitative evaluation, see TABLE 7
| Test piece | Year 1 | Year 2 |
| LLG | 1.21 | 3.49 |
TABLE 7
Kinetics law of corrosion
LLG test pieces: d-0.4074 e1.075T
(4) Equivalence relation
LLG test pieces: AF 0.432/1.075 0.4.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A method of determining an accelerated corrosion equivalence relationship for a protective coating, comprising the steps of:
s1: carrying out quantitative evaluation on aging corrosion damage of the protective coating in a laboratory and an external field;
s2: establishing a laboratory accelerated aging corrosion damage dynamic model and an aging corrosion damage dynamic model in an external field exposure or actual service environment;
s3: respectively estimating curve parameters in a laboratory accelerated aging corrosion damage dynamic model and an aging corrosion damage dynamic model in an external field exposure or actual service environment;
s4: and determining the equivalent relation according to the curve parameters estimated by the two models.
2. The method for determining the equivalent relation of the accelerated corrosion of the protective coating according to claim 1, wherein the judgment factors of the aging damage are determined according to the corrosion damage form of the protective coating, the evaluation levels corresponding to the judgment factors are determined according to the aging requirement of the protective coating, then the membership function relation of the judgment factors and the evaluation levels is established by adopting a fuzzy comprehensive judgment method, a matrix is constructed, the aging damage degree of the protective coating is comprehensively quantized by combining the weight of each judgment factor, and the quantitative evaluation of the aging corrosion damage of the protective coating in a laboratory and an external field is realized.
3. The method for determining the accelerated corrosion equivalence relationship of protective coatings according to claim 2, wherein the method for establishing the laboratory accelerated aging corrosion damage kinetic model comprises the following steps:
evaluating the aging corrosion damage d of the protective coating under the environment condition of the accelerated aging corrosion test by using a quantitative evaluation method, and describing the change rule of the aging corrosion damage along with the time t by using the following formula
d＝d0ebt (1)
In the formula (d)0Is an initial lesion; t is accelerated aging corrosion time; and b is the accelerated aging corrosion curve parameter.
4. The method for determining the accelerated corrosion equivalence relation of the protective coating according to claim 3, wherein the method for establishing the dynamic model of the aged corrosion damage in the external field exposure or actual service environment comprises the following steps:
evaluating aging corrosion damage D of the protective coating under the external field exposure or actual service environment by using a quantitative evaluation method, and describing the change rule of the aging corrosion damage along with time T by using the following formula
D＝d0eBT (2)
In the formula (d)0Is an initial lesion; t is the atmospheric exposure time; and B is an external field curve parameter.
5. The method for determining the equivalent relationship of the accelerated corrosion of the protective coating according to claim 4, wherein the accelerated aging corrosion curve parameter and the outfield curve parameter are estimated according to the data volume of the outfield exposure or the actual service environment.
6. Method for determining the equivalent relationship of accelerated corrosion of protective coatings according to claim 5, characterized in that the data volume (T, D) of the field exposure or the actual service environmentjWhen (j is 1, …, m), m is less than or equal to 3;
firstly, corrosion kinetic parameter estimation under accelerated corrosion environment
Obtaining an aging corrosion damage result d under different accelerated corrosion periods t by a comprehensive rating method according to test results of a plurality of periods of accelerated corrosion in a laboratory to obtain (t, d)j(j ═ 1, …, n) data, the parameters were estimated by linear regression using logarithms on both sides of equation (1), and the results were as follows:
in the formula (I), the compound is shown in the specification,
d0,tfor d obtained by estimation0A value; n is the data volume under laboratory conditions;
② the aging, corrosion and damage of the protective coating under the external field exposure or actual service environment
Obtaining an aging corrosion damage result D under different ages T by adopting a comprehensive rating method according to the aging corrosion damage test result of the protective coating under the external field exposure or actual service environment to obtain (T, D)j(j ═ 1, …, m) data, which was low, were estimated as follows:
take d in formula (2)0Is d in formula (3)0,tComposed of (T, D)j(j ═ 1, …, m) parameter estimation was performed by a unary linear regression method, and the results were as follows:
in the formula, m is the data volume of the external field exposure or the actual service environment;
③ determination of d0Value of
Re-estimating B and B values
The B and B values are re-estimated as follows:
7. the method of claim 5, wherein the outfield exposure is determined by determining the equivalent accelerated corrosion relationshipData volume (T, D) in exposed or actual service environmentjWhen j is more than 1, …, m, i.e. m is more than or equal to 3;
1) preliminary estimation of corrosion kinetic parameters in accelerated corrosion environments
Obtaining an aging corrosion damage result d under different accelerated corrosion periods t by adopting a comprehensive rating method according to the accelerated corrosion test result to obtain (t, d)jThe linear regression of the (j ═ 1, …, n) data with logarithms on both sides of equation (2) was used to estimate the parameters, as follows:
in the formula (I), the compound is shown in the specification,
d0,tfor d obtained by estimation0A value; n is the data volume under laboratory conditions;
2) protective coating aging corrosion damage under atmospheric exposure or service environment
Take d in formula (2)0Is d in formula (3)0,tComposed of (T, D)j(j ═ 1, …, m) parameter estimation was performed by a unary linear regression method, and the results were as follows:
in the formula (I), the compound is shown in the specification,
d0,Tfor d obtained by estimation0A value;
3) determination of d0Value of
4) Re-estimating B and B values
The B and B values are re-estimated as follows:
8. the method for determining the equivalent accelerated corrosion relationship of a protective coating according to claim 6 or 7, wherein if the accelerated corrosion time T is set to be the same as the corrosion damage of the time T of the external field, then:
and calculating the equivalent relation AF from the estimated B and B.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738365A (en) * | 2008-11-06 | 2010-06-16 | 北京有色金属研究总院 | Accelerated test method for simulating atmospheric corrosion of metal materials |
| JP2010139449A (en) * | 2008-12-15 | 2010-06-24 | Jfe Steel Corp | Corrosion acceleration test method and corrosion amount prediction method of organic coating steel material for civil engineering |
| CN101853320A (en) * | 2010-05-17 | 2010-10-06 | 北京航空航天大学 | Fuzzy comprehensive evaluation method suitable for aircraft structure corrosion damage |
| JP2011227004A (en) * | 2010-04-22 | 2011-11-10 | Jfe Steel Corp | Method for testing corrosion acceleration of double anticorrosive coating steel material |
| CN105891096A (en) * | 2016-05-09 | 2016-08-24 | 北京航空航天大学 | Method for quantitatively determining aging damage of protective coating |
| CN112461734A (en) * | 2020-11-02 | 2021-03-09 | 航天科工防御技术研究试验中心 | Design method for accelerated corrosion test |
| CN112697691A (en) * | 2021-01-15 | 2021-04-23 | 中国人民解放军海军航空大学青岛校区 | Research method for corrosion damage distribution rule of aviation alloy steel in service environment |
-
2021
- 2021-07-13 CN CN202110789662.1A patent/CN113552053B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738365A (en) * | 2008-11-06 | 2010-06-16 | 北京有色金属研究总院 | Accelerated test method for simulating atmospheric corrosion of metal materials |
| JP2010139449A (en) * | 2008-12-15 | 2010-06-24 | Jfe Steel Corp | Corrosion acceleration test method and corrosion amount prediction method of organic coating steel material for civil engineering |
| JP2011227004A (en) * | 2010-04-22 | 2011-11-10 | Jfe Steel Corp | Method for testing corrosion acceleration of double anticorrosive coating steel material |
| CN101853320A (en) * | 2010-05-17 | 2010-10-06 | 北京航空航天大学 | Fuzzy comprehensive evaluation method suitable for aircraft structure corrosion damage |
| CN105891096A (en) * | 2016-05-09 | 2016-08-24 | 北京航空航天大学 | Method for quantitatively determining aging damage of protective coating |
| CN112461734A (en) * | 2020-11-02 | 2021-03-09 | 航天科工防御技术研究试验中心 | Design method for accelerated corrosion test |
| CN112697691A (en) * | 2021-01-15 | 2021-04-23 | 中国人民解放军海军航空大学青岛校区 | Research method for corrosion damage distribution rule of aviation alloy steel in service environment |
Non-Patent Citations (7)
| Title |
|---|
| XIAOFAN HE等: "Fleet economic life prediction: A probabilistic approach including load spectrum variation and structural property variation", 《ENGINEERING FRACTURE MECHANICS》 * |
| 唐扬刚等: "飞机连接结构防护涂层老化损伤量化评估方法", 《航空学报》 * |
| 张勇等: "×飞机半封闭部位局部环境谱当量加速关系研究", 《装备环境工程》 * |
| 汪鹏飞等: "涂层加速老化与自然曝晒试验的相关性分析", 《北京航空航天大学学报》 * |
| 王德等: "自然曝晒与加速老化试验下航空涂层失光率的当量关系研究", 《装备环境工程》 * |
| 贺小帆等: "腐蚀条件下结构耐久性分析裂纹扩展规律研究", 《强度与环境》 * |
| 贺晓帆等: "腐蚀条件下结构耐久性分析的经济寿命修正方法", 《机械强度》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114137044A (en) * | 2021-11-11 | 2022-03-04 | 北京航空航天大学 | Electrochemical method for on-site monitoring of organic coating protective performance in seawater environment |
| CN114137044B (en) * | 2021-11-11 | 2022-08-16 | 北京航空航天大学 | Electrochemical method for on-site monitoring of organic coating protective performance in seawater environment |
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