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    ASTM G107-1995(2002) Standard Guide for Formats for Collection and Compilation of Corrosion Data for Metals for Computerized Database Input《计算机化数据库输入用金属腐蚀数据的采集和编辑格式》.pdf

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    ASTM G107-1995(2002) Standard Guide for Formats for Collection and Compilation of Corrosion Data for Metals for Computerized Database Input《计算机化数据库输入用金属腐蚀数据的采集和编辑格式》.pdf

    1、Designation: G 107 95 (Reapproved 2002)Standard Guide forFormats for Collection and Compilation of Corrosion Datafor Metals for Computerized Database Input1This standard is issued under the fixed designation G 107; the number immediately following the designation indicates the year oforiginal adopti

    2、on or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This guide defines the data categories and specific dataelements (fields)

    3、 considered necessary to accommodate desiredsearch strategies and reliable data comparisons in computer-ized corrosion databases. The data entries are designed toaccommodate data relative to the basic forms of corrosion andto serve as guides for structuring multiple source databasecompilations capab

    4、le of assessing compatibility of metals andalloys for a wide range of environments and exposure condi-tions.2. Referenced Documents2.1 ASTM Standards:E 8 Test Methods for Tension Testing of Metallic Materials2E 527 Practice for Numbering Metals and Alloys (UNS)3E 1314 Practice for Structuring Termin

    5、ological RecordsRelating to Computerized Test Reporting and MaterialsDesignation Formats4E 1338 Guide for the Identification of Metals and Alloys inComputerized Material Property Databases4G 1 Practice for Preparing, Cleaning, and Evaluating Cor-rosion Test Specimens5G 15 Terminology Relating to Cor

    6、rosion and CorrosionTesting5G 34 Test Method for Exfoliation Corrosion Susceptibilityin 2XXX and 7XXX Series Aluminum Alloys (EXCOTest)5G 46 Guide for Examination and Evaluation of PittingCorrosion5G 49 Practice for Preparation and Use of Direct TensionStress-Corrosion Test Specimens5G 78 Guide for

    7、Crevice Corrosion Testing of Iron-Base andNickel-Base Stainless Alloys in Seawater and OtherChloride-Containing Aqueous Environments53. Terminology3.1 DefinitionsFor definitions of terms applicable to thisguide see Practice E 1314 and Terminology G 15.4. Significance and Use4.1 The guide is intended

    8、 to facilitate the recording ofcorrosion test results and does not imply or endorse anyparticular database design or schema. It provides a usefulreference to be consulted before initiating a corrosion test to besure plans are made to record all relevant data.4.2 Corrosion tests are usually performed

    9、 following a pre-scribed test procedure that is often not a standard test method.Most corrosion tests involve concurrent exposure of multiplespecimens of one or more materials (refer to 6.1.1).4.3 This guide is designed to record data for individualspecimens with groupings by separate tests (as cont

    10、rasted toseparate test methods) as described in 4.2 and 6.1.1. Conse-quently, some of the individual fields may apply to all of thespecimens in a single test, while others must be repeated asoften as necessary to record data for individual specimens.4.4 The guidelines provided are designed for recor

    11、ding datafor entry into computerized material performance databases.They may be useful for other applications where systematicrecording of corrosion data is desired.4.5 Reliable comparisons of corrosion data from multiplesources will be expedited if data are provided for as many ofthe listed fields

    12、as possible. Comparisons are possible wheredata are limited, but some degree of uncertainty will be present.4.6 Certain specialized corrosion tests may require addi-tional data elements to fully characterize the data recorded.This guide does not preclude these additions. Other ASTMguides for recordi

    13、ng data from mechanical property tests maybe helpful.4.7 This guide does not cover the recording of data fromelectrochemical corrosion tests.4.8 These material identification guidelines are compatiblewith Guide E 1338.5. Categorization of Corrosion Data5.1 This guide considers nine general categorie

    14、s for use indocumenting corrosion data. Categories, with input examples,are as follows:5.1.1 Test IdentificationUnique code to identify groupings1This guide is under the jurisdiction of ASTM Committee G01 on Corrosion ofMetals and is the direct responsibility of Subcommittee G01.05 on LaboratoryCorr

    15、osion Tests.Current edition approved Dec. 10, 1995. Published February 1996. Originallypublished as G 107 91. Last previous edition G 107 91.2Annual Book of ASTM Standards, Vol 03.01.3Annual Book of ASTM Standards, Vol 01.01.4Annual Book of ASTM Standards, Vol 14.01.5Annual Book of ASTM Standards, V

    16、ol 03.02.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.of multiple specimens exposed at the same time and underidentical conditions.5.1.2 Type of TestStandardized, laboratory, field tests; testrelation to specific process or applic

    17、ation (for example, sulfidestress cracking test for sour gas production tubing).5.1.3 Test EmphasisSpecific form of corrosion or degra-dation (for example, pitting, corrosion-fatigue, crevice corro-sion, etc.).5.1.4 EnvironmentGeneric description; identification,concentration, and state of principal

    18、 components; contami-nants, etc.5.1.5 Exposure ConditionsDuration, temperature, pH, hy-drodynamic conditions, aeration, etc.5.1.6 Material IdentificationMaterial class, subclass, andfamily, common name, standard designation, condition, manu-facturing process, product form, etc.5.1.7 Specimen Identif

    19、icationSpecimen number, size, ge-ometry, surface condition, composition, properties.5.1.8 Specimen PerformanceMass change, propertychange, performance relative to specific corrosion, or degrada-tion mechanism.5.1.9 Data Source or Reference.5.2 This guide permits supplementary notes to documentsupple

    20、mentary information considered important in interpret-ing data.6. Data Searching6.1 This guide considers data to accommodate searches foridentifying and locating data and metadata in eight specificareas as follows:6.1.1 Multiple specimens of one material included in sametest (that is, exposed in sam

    21、e or companion test rack exposedunder identical conditions in same or companion test vessel).6.1.2 Different materials included in same test.6.1.3 Material evaluated by specific standard test methods(by standardized test number).6.1.4 Materials exposed to specific environments with en-vironments def

    22、ined by generic description (for example, sourgas) or by specific components (for example,hydrocarbon + H2S).6.1.5 Specific materials, defined by class (for example,metals), subclass (for example, wrought aluminum), family(for example, Al-Si alloys), standard designation (UNS No.,ASTM specification)

    23、, or common name.6.1.6 Specific application or process (for example, sour gasproduction tubing, pulp bleaching).6.1.7 Type of corrosion or degradation mechanism (forexample, pitting, corrosion fatigue, etc.).6.1.8 Results from a specific reference or source.6.2 Additional information may be required

    24、 to facilitatesupplementary search requirements. This guide does not pre-clude these additions.7. Data Entry Fields7.1 Data entry fields are listed in Table 1. The table containsthe following information:7.1.1 The reference number is a unique number the firstthree digits of which refer to the releva

    25、nt paragraph numbers inthis guide.7.1.2 The field name or object tag is a concise label for thefield. Tags are made up of one or more character stringsseparated by periods. The first character in each string must bealphabetic (az, AZ,”). Thereafter the characters may bealphanumeric (az, AZ,”, 09).7.

    26、1.2.1 Periods are used to separate subdivisions inherent inthe information, for example “Component.Name,” “Compo-nent.Conc.”7.1.2.2 Tags are case insensitive although mixed case issuggested for readability. Mixed case is used when a tagsmeaning forms a single concept, for example “FlowRegime.”7.1.3

    27、The field description is a textual description of thefield.7.1.4 The field type describes the format and allowedcontents for the field. The field may be one of the followingtypes:7.1.4.1 String (STRING)A string is an undifferentiatedseries of characters. Strings may contain punctuation charac-ters e

    28、xcept for a tab, new line, or leading semicolon.7.1.4.2 Quantity (QUANT)A quantity is a data aggregatemade of a real number and a unit. The last column of the tablegives suggested units for the field. Alternative units may beused.7.1.4.3 Data (DATE)A date is a string of eight numericcharacters encod

    29、ing year, month, and day in the orderYYYYMMDD.7.1.4.4 Time (TIME)A time is a string of six numericcharacters encoding hour, minute and second in the orderHHMMSS.7.1.4.5 Category Set (SETA category set is a closed list ofvalues for a particular field. A database uses an integer value torecord the mem

    30、ber of the category set. Category sets shouldnot be used for quantities. Use the quantity type, instead. Thelast column of the table gives a list of acceptable values andtheir meaning for each category set field.7.1.4.6 Tabular (TABLE)A tabular field is made up of agroup of values. The last column g

    31、ives the title and type ofeach value.8. Keywords8.1 computerization; corrosion; data; database; material per-formance; metalG 1072TABLE 1 Standard Data Entry Fields for Corrosion Database DevelopmentReferenceNumberField Name or Object Tag Description Field Type Category Set/Suggested Units/Column De

    32、finition5.1.1 Test No individual test number to identify grouping ofspecimens tested concurrently. Seesubsequent entries of test methodSTRINGTYPE OF TEST5.1.2.1 Standard standard test specification STRING5.1.2.2 Location field or laboratory test SET (1) F - field(2) L - Laboratory5.1.2.3 Date date t

    33、est started DATETEST EMPHASIS5.1.3.1 CorrosionType type(s) of corrosion evaluated examples: generalcorrosion, stress corrosion, pitting, crevicecorrosion, hot or cold wall effects, fretting, straycurrent, weld corrosion, corrosion-fatigue,galvanic corrosion, microbiological corrosionSTRINGCHEMISTRY

    34、OF ENVIRONMENT5.1.4.1 Environment generic description of environment STRING5.1.4.2 Component componentcommon name STRING5.1.4.3 Component.Registry chemical abstracts registry number STRING5.1.4.4 Component.Conc concentration (liquids) QUANT g/L5.1.4.5 Component.Press partial pressure (gases) QUANT N

    35、/m2, psi5.1.4.6 Component.Form component form SET (1) solid(2) liquid(3) gaseous(4) aqueous liquid(5) non-aqueous solutions or emulsions5.1.4.7 IonicSpecies ionic species STRING5.1.4.8 Inhibitor inhibitors STRINGNote: many environments contain multiplecomponents. Reference numbers 5.1.4.1through 5.1

    36、.4.8 should be repeated for eachcomponent and no restrictions should beplaced on the number of components to bedescribed for any given environment.EXPOSURE CONDITIONS5.1.5.1 Duration exposure duration QUANT days5.1.5.2 MinTemp temperaturemin QUANT C, F5.1.5.3 MaxTemp temperaturemax QUANT C, F5.1.5.4

    37、 AvgTemp temperatureav QUANT C, F5.1.5.5 HeatTransfer heat transfer between specimen andenvironment. If YES, describe conditions in5.1.5.6SET (1) Yyes(2) Nno5.1.5.6 HeatTransfer.Description heat transfer conditions STRING5.1.5.7 MaxPH pHminimum QUANT5.1.5.8 MinPH pHmaximum QUANT5.1.5.9 AvgPH pHavg Q

    38、UANT5.1.5.10 Alkalinity total alkalinity (total concentration of bases) QUANT moles/l5.1.5.11 Acidity total acidity (total concentration of acids) QUANT moles/l5.1.5.12 Conductivity conductivity QUANT mhos/m5.1.5.13 Pressure pressure (absolute) QUANT Pa, psi5.1.5.14 Velocity velocity QUANT m/s, ft/s

    39、5.1.5.15 ReynoldsNo reynolds number QUANT5.1.5.16 FlowRegime flow SET (1) none(2) laminar(3) turbulent(4) forced convection5.1.5.17 Geometry system geometry at test sample STRING5.1.5.18 Sparging sparging SET (1) deaerated (vacuum, inert gas)(2) noneless than saturated (open to air)(3) air(4) oxygen

    40、(5) inert gas5.1.5.19 Agitation agitation SET (1) none(2) stirred(3) shaken(4) shaken but not bruised5.1.5.20 ExpZone exposure zone SET (1) continuous immersion(2) splash zone(3) waterline(4) condensate zone(5) gaseous phase(6) cyclic exposure describe in 5.1.5.21G 1073TABLE 1 ContinuedReferenceNumb

    41、erField Name or Object Tag Description Field Type Category Set/Suggested Units/Column Definition5.1.5.21 ExpZone.Cycle cyclic exposure cycle (immersion/air exposure,etc.)STRING5.1.5.22 Process process relationexamples: pulp bleaching, sour gas production,solvent extraction, gas scrubbing, etc.STRING

    42、5.1.5.23 Application application relationexamples: heat exchanger tubing, fasteners,pumps, valves, scrubber ducting, etc.STRING5.1.5.24 AV Ratio ratio of specimen surface area to corrodentvolumeQUANT mm2/L, in.2/LMATERIAL IDENTIFICATIONreference numbers 5.1.6.1 through 5.1.6.6 arebasic fields for us

    43、e in material identification indatabase. Refer to Guide E 1338 on theidentification of Metals and Alloys incomputerized material property databases.5.1.6.1 Matl.Class material class STRING5.1.6.2 Matl.SubClass sub-division of class STRING5.1.6.3 Matl.SubSubClass finer sub-division of class STRING5.1

    44、.6.4 Matl.TradeName common name/trade name STRING5.1.6.5 Matl.UNSNo material designationUNS number STRING5.1.6.6 Matl.Spec specification/standard STRING5.1.6.7 Shape product shape SET (1)pipe/tube(2) plate(3) sheet/strip(4) wire/rod/bar(5) otherdescribe in 5.1.6.85.1.6.8 Shape.Description descriptio

    45、n for (5) in 5.1.6.7 STRING5.1.6.9 ProdMethod product production method (1) extrusion(2) forging(3) casting(4) rolling(5) powder compaction(6) otherdescribe, in 5.1.6.105.1.6.10 ProdMethod.Description description of (6) in 5.1.6.9 STRING5.1.6.11 Lot.ID heat/lot identification STRING5.1.6.12 Lot.Anal

    46、ysis heat/lot chemical analysis STRINGSPECIMEN IDENTIFICATION5.1.7.1 Specimen.Thickness specimen thickness QUANT mm, in.5.1.7.2 Specimen.Width specimen width/diameter QUANT mm, in.5.1.7.3 Specimen.Length specimen length QUANT mm, in.5.1.7.4 Specimen.Area specimen surface area QUANT mm2, in.25.1.7.5

    47、Density density QUANT kg/m3, lb/in.35.1.7.6 Weld welded specimen SET (1) Yyes(2) Nno5.1.7.7 Weld.Type type of weld (see section 5.1.7.8 for additionaldetail)SET (1) autogenous(2) matching filler(3) dissimilar metal weld5.1.7.8 Weld.Description weld detailsexamples: preheat, welding process, no. ofpa

    48、sses, heat input, joint shape, cover gas, etc.5.1.7.9 Weld.Surface welds ground or machined SET (1) ground(2) machined(3) as deposited(4) glass bead blasted5.1.7.10 Thermomechanical thermomechanical condition SET (1) standard temperdescribe in 5.1.7.11(2) annealed(3) normalized(4) sensitized(5) as c

    49、old worked(6) as hot worked(7) aged(8) other H.T./processingdescribe in 5.1.7.115.1.7.11 Thermomechanical.Description description for (1) or (7) in 5.1.7.10 STRING5.1.7.12 FinalReduction final reduction step (1) cold workedgive % reduction in 5.1.7.13(2) hot worked (includes extrusion and forging)5.1.7.13 Reduction % cold reduction QUANT %5.1.7.14 TensileStrength ultimate tensile strength QUANT Pa, psi5.1.7.15 YieldStrength yield strength QUANT Pa, psi5.1.7.16 YieldStrength.Offset % offset for yield strength QUANT %5.1.7.17 FractureDuctility


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