共找到 271 条与 金相检验方法 相关的标准,共 19 页
Hardmetals; metallographic determination of porosity and uncombined carbon (ISO 4505:1978)
本标准规定了航空钢制件渗碳、碳氮共渗金相组织检验标准。 本标准适用于HB/Z159规定的航空产品渗碳、碳氮共渗钢制件金相组织的检验,其它产品可参照执行。
Inspection standard for carburizing and carbonitriding metallographic structure of aerospace steel parts
This specification contains requirements not normally covered by drawing sand provides Quality Assurance ProvIsIons for the fabr I catIon of parts, assembly and packing of the M139 a I r system mounting k It used In the VOLCANO ~ 1 3 9M ine Dispenser System.
MOUNTING KIT, MINE DISPENSER: AIR SYSTEM FOR M139 DISPENSERS
MIGI-48110B(AR), dated 11 May 1982, with Amendment 1, dated 23 May 1983 has been reviewed and determined to be valid for use in acquisition.
IGNITER ASSEMBLY, ROCKET, FOR DEMOLITION KIT, CRATERING, M180
Metallographic Examination of High Ni-Cr Infinitely Chilled Centrifugal Cast Iron Roll
Metallographic Examination of High Ni-Cr Infinitely Chilled Centrifugal Iron Roll
Low-magnification structural defect rating chart of continuous cast steel billet
Low-magnification structural defect rating chart of continuous cast steel billet
Metals and other materials are not always isotropic in their physical properties. For example, Youngrsquo;modulus will vary in different crystallographic directions. Therefore, it is desirable or necessary to determine the orientation of a single crystal undergoing tests in order to ascertain the relation of any property to different directions in the material. This test method can be used commercially as a quality control test in production situations where a desired orientation, within prescribed limits, is required. With the use of an adjustable fixed holder that can later be mounted on a saw, lathe, or other machine, a single crystal material can be moved to a preferred orientation, and subsequently sectioned, ground, or processed otherwise. If grains of a polycrystalline material are large enough, this test method can be used to determine their orientations and differences in orientation.1.1 This test method covers the back-reflection Laue procedure for determining the orientation of a metal crystal. The back-reflection Laue method for determining crystal orientation (1, 2) may be applied to macrograins (3) (0.5-mm diameter or larger) within polycrystalline aggregates, as well as to single crystals of any size. The method is described with reference to cubic crystals; it can be applied equally well to hexagonal, tetragonal, or orthorhombic crystals.1.2 Most natural crystals have well developed external faces, and the orientation of such crystals can usually be determined from inspection. The orientation of a crystal having poorly developed faces, or no faces at all (for example, a metal crystal prepared in the laboratory) must be determined by more elaborate methods. The most convenient and accurate of these involves the use of X-ray diffraction. The "orientation of a metal crystal" is known when the positions in space of the crystallographic axes of the unit cell have been located with reference to the surface geometry of the crystal specimen. This relation between unit cell position and surface geometry is most conveniently expressed by stereographic or gnomonic projection.1.3 The values stated in inch-pound units are to be regarded as the standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Standard Test Method for Determining the Orientation of a Metal Crystal
Specifies three procedures for estimating, and rules for expressing, the average grain size of copper and copper alloys consisting principally of a single phase. The comparison procedure (comparing the specimen with a standard chart) is most convenient and is sufficiently accurate for most commercial purposes. In cases of dispute the use of the Heyn or Jeffries procedures (intercept procedure and planimetric procedure, respectively) having higher degrees of accuracy is recommended.
Copper and copper alloys; estimation of average grain size
Methods for micrographic determination of the grain size of steel
MIL-K-83782A, dated 18 December-1978, hac beea reviewed and.determined to be valid for use in acquisition.
KIT BAG, FLYER'S
MIL-D-2088B(AR), dated 27 August 1968, with Arendmnt 2, dated 14 August 1981,has been Tevised and teed to be valid for use in acquisition.
DEMOLITION KIT, BANGALORE TORPEDO, M1A2 AND TORPEDO, BANGALORE, M1A1, INERT, PARTS FOR
MU;-F46570D(aR), dated 15 January 1982, has been reviewed and determined to be valid for use in acquisition.
FUZE, DEMOLITION KIT, M1134 WITH DETONATORS PARTS FOR
This commercial item description covers brown kraft paper used for general wrapping applications.
MOUNTING KIT, MINE DISPENSER: GROUND SYSTEM FOR M139 DISPENSERS
Iron and steel. Magnetic particle examination of longitudinal products. Detection of surface defects.
この規格は,主として銅及び銅合金展伸材のα単一相からたるとみなされる焼なまし材の結晶粒度の側定方法及びその表示方法について規定する。
Methods for estimating average grain size of wrought copper and copper alloys
Steel products. Techniques of micrographic examination.
This standard specifies a micrographic method of determining the non-metallic inclusions in steel, uring standard diagrams. There are standard diagrams for four different types of inclusions: line-shaped sulfide type (SS), scattered oxide (alumina) type (OA), line-shaped oxide (silicate) type (OS) and globular oxide type (OG).#,,#
Metallographic examination; microscopic examination of special steels using standard diagrams to assess the content of non-metallic inclusions
Non destructive testing. Acoustic emission. Examination of composite material parts and structures. Matrix fibers.
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