ASTM B797-1993(2007)
粉末锻钢部件中表面指状氧化物穿透深度和粒子间氧化物网状组织出现的标准测试方法

Standard Test Method for Surface Finger Oxide Penetration Depth and Presence of Interparticle Oxide Networks in Powder Forged (P/F) Steel Parts

标准号

ASTM B797-1993(2007)

发布日期

1993年

实施日期

废止日期

无

中国标准分类号

H70

国际标准分类号

77.040.99 (Other methods of testing metals)

发布单位

US-ASTM

适用范围

The presence of surface finger oxide penetration and interparticle oxide networks are two of the properties used to evaluate powder forged steel parts for proper processing. Maximum acceptable depths of penetration of surface finger oxide penetration and acceptable concentrations of subsurface interparticle oxide networks depend on the component and its service environment.

Results of tests may be used to qualify parts for shipment.

1.1 This test method covers a metallographic method for determining the maximum depth of surface finger oxide penetration and the concentration of subsurface interparticle oxide networks in critical areas of powder forged steel parts.

1.2 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.