ASTM E23-23a Standard Test Methods For Notched Bar Impact Testing Of metallic Materials 金属材料的缺口棒冲击试验的标准试验方法

ASTM E23-23a,Standard Test Methods For Notched Bar Impact Testing Of Metallic Materials 金属材料的缺口棒冲击试验的标准试验方法.

These test methods describe notched-bar impact testing of metallic materials by the Charpy (simple-beam) test and the Izod (cantilever-beam) test. They give the requirements for: test specimens, test procedures, test reports, test machines (see Annex A1) verifying Charpy impact machines (see Annex A2), optional test specimen configurations (see Annex A3), designation of test specimen orientation (see Terminology E1823), and determining the shear fracture appearance (see Annex A4). In addition, information is provided on the significance of notched-bar impact testing (see Appendix X1), and methods of measuring the center of strike (see Appendix X2).

1.2These test methods do not address the problems associated with impact testing at temperatures below "“196 °C (77 K).

1.3The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3.1Exception - Section 9 and Annex A4 provide inch-pound units for information only.
这些试验方法描述了用Charpy(简梁)试验和Izod(悬臂梁)试验对金属材料进行的缺口杆冲击试验。它们给出了以下要求:试样、试验程序、试验报告、验证夏比冲击试验机(见附件A2)的试验机(见附件A1)、可选试样配置(见附件A3)、试样方向的指定(见术语E1823)和剪切断裂外观的确定(见附件A4)。此外，还提供了缺口杆冲击试验的重要性(见附录X1)和测量冲击中心的方法(见附录X2)的信息。

1.2这些试验方法没有解决在低于196°C (77 K)的温度下进行冲击试验的相关问题。

1.3以SI单位表示的数值应被视为标准。本标准不包括其他计量单位。

1.3.1例外-第9节和附件A4提供的英寸-磅单位仅供参考。