ASTM B867-1995(2013) Standard Specification for Electrodeposited Coatings of Palladium-Nickel for Engineering Use《工程用钯-镍电镀层的标准规格》.pdf
《ASTM B867-1995(2013) Standard Specification for Electrodeposited Coatings of Palladium-Nickel for Engineering Use《工程用钯-镍电镀层的标准规格》.pdf》由会员分享,可在线阅读,更多相关《ASTM B867-1995(2013) Standard Specification for Electrodeposited Coatings of Palladium-Nickel for Engineering Use《工程用钯-镍电镀层的标准规格》.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: B867 95 (Reapproved 2013)Standard Specification forElectrodeposited Coatings of Palladium-Nickel forEngineering Use1This standard is issued under the fixed designation B867; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revisi
2、on, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 CompositionThis specification covers requirementsfor electrodeposited palladium-nickel coatings contai
3、ning be-tween 70 and 95 mass % of palladium metal. Compositecoatings consisting of palladium-nickel and a thin gold over-plate for applications involving electrical contacts are alsocovered.1.2 PropertiesPalladium is the lightest and least noble ofthe platinum group metals. Palladium-nickel is a sol
4、id solutionalloy of palladium and nickel. Electroplated palladium-nickelalloys have a density between 10 and 11.5, which is substan-tially less than electroplated gold (17.0 to 19.3) and compa-rable to electroplated pure palladium (10.5 to 11.8). This yieldsa greater volume or thickness of coating p
5、er unit mass and,consequently, some saving of metal weight. The hardnessrange of electrodeposited palladium-nickel compares favorablywith electroplated noble metals and their alloys (1, 2).2NOTE 1Electroplated deposits generally have a lower density thantheir wrought metal counterparts.Approximate H
6、ardness (HK25)Gold 50250Palladium 75600Platinum 150550Palladium-Nickel 300650Rhodium 7501100Ruthenium 60013001.3 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.4 This standard does not purport to address all of thesafety con
7、cerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3B183 Practice for Preparation of Low-C
8、arbon Steel forElectroplatingB242 Guide for Preparation of High-Carbon Steel for Elec-troplatingB254 Practice for Preparation of and Electroplating onStainless SteelB281 Practice for Preparation of Copper and Copper-BaseAlloys for Electroplating and Conversion CoatingsB322 Guide for Cleaning Metals
9、Prior to ElectroplatingB343 Practice for Preparation of Nickel for Electroplatingwith NickelB374 Terminology Relating to ElectroplatingB481 Practice for Preparation of Titanium and TitaniumAlloys for ElectroplatingB482 Practice for Preparation of Tungsten and TungstenAlloys for ElectroplatingB487 Te
10、st Method for Measurement of Metal and OxideCoating Thickness by Microscopical Examination ofCross SectionB488 Specification for Electrodeposited Coatings of Goldfor Engineering UsesB489 Practice for Bend Test for Ductility of Electrodepos-ited and Autocatalytically Deposited Metal Coatings onMetals
11、B507 Practice for Design of Articles to Be Electroplated onRacksB542 Terminology Relating to Electrical Contacts and TheirUseB558 Practice for Preparation of Nickel Alloys for Electro-platingB568 Test Method for Measurement of Coating Thicknessby X-Ray SpectrometryB571 Practice for Qualitative Adhes
12、ion Testing of MetallicCoatingsB602 Test Method for Attribute Sampling of Metallic andInorganic Coatings1This specification is under the jurisdiction of ASTM Committee B08 onMetallic and Inorganic Coatings and is under the direct responsibility of Subcom-mittee B08.03 on Engineering Coatings.Current
13、 edition approved Dec. 1, 2013. Published December 2013. Originallyapproved in 1995. Last previous edition approved in 2008 as B867 95 (2008).DOI: 10.1520/B0867-95R13.2The boldface numbers in parentheses refer to the list of references at the end ofthis specification.3For referenced ASTM standards,
14、visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428
15、-2959. United States1B697 Guide for Selection of Sampling Plans for Inspectionof Electrodeposited Metallic and Inorganic CoatingsB741 Test Method for Porosity In Gold Coatings On MetalSubstrates By Paper Electrography (Withdrawn 2005)4B748 Test Method for Measurement of Thickness of Metal-lic Coatin
16、gs by Measurement of Cross Section with aScanning Electron MicroscopeB762 Test Method of Variables Sampling of Metallic andInorganic CoatingsB765 Guide for Selection of Porosity and Gross Defect Testsfor Electrodeposits and Related Metallic CoatingsB798 Test Method for Porosity in Gold or Palladium
17、Coat-ings on Metal Substrates by Gel-Bulk ElectrographyB799 Test Method for Porosity in Gold and PalladiumCoatings by Sulfurous Acid/Sulfur-Dioxide VaporB809 Test Method for Porosity in Metallic Coatings byHumid Sulfur Vapor (“Flowers-of-Sulfur”)B827 Practice for Conducting Mixed Flowing Gas (MFG)En
18、vironmental TestsB845 Guide for Mixed Flowing Gas (MFG) Tests for Elec-trical ContactsB849 Specification for Pre-Treatments of Iron or Steel forReducing Risk of Hydrogen EmbrittlementB850 Guide for Post-Coating Treatments of Steel for Reduc-ing the Risk of Hydrogen EmbrittlementD1125 Test Methods fo
19、r Electrical Conductivity and Resis-tivity of WaterD3951 Practice for Commercial Packaging3. Terminology3.1 Definitions: Many terms used in this specification aredefined in Terminology B374 or B542.3.2 Definitions of Terms Specific to This Standard:3.2.1 overplating, na coating applied onto the topm
20、ostpalladium-nickel coating. The thickness of an overplating or“flash” is usually less than 0.25 m.3.2.2 significant surfaces, nthose surfaces normally vis-ible (directly or by reflection) or which are essential to theserviceability or function of the article; or which can be thesource of corrosion
21、products or tarnish films that interfere withthe function or desirable appearance of the article. The signifi-cant surfaces shall be indicated on the drawings of the parts, orby the provision of suitably marked samples.3.2.3 underplating, na metallic coating layer or layersbetween the basis metal or
22、 substrate and the palladium-nickelcoating. The thickness of an underplating is usually greaterthan 1 m, in contrast to a strike which is thinner.4. Classification4.1 Orders for articles to be plated in accordance with thisspecification shall specify the coating system, indicating thebasis metal, th
23、e thicknesses of the underplatings, the type andthickness class of the palladium-nickel coating, and the gradeof the gold overplating according to Table 1, Table 2, and Table3. See Section 7.5. Ordering Information5.1 In order to make the application of this specificationcomplete, the purchaser shal
24、l supply the following informationto the seller in the purchase order or other governing document:5.1.1 The name, designation, and date of issue of thisspecification;5.1.2 The coating system including basis metal, composi-tion type, thickness class and gold overplate grade (see 4.1 andTable 1, Table
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMB86719952013STANDARDSPECIFICATIONFORELECTRODEPOSITEDCOATINGSOFPALLADIUMNICKELFORENGINEERINGUSE 工程

链接地址:http://www.mydoc123.com/p-462583.html