Home / Standards / GB/T 46614-2025 GB/T 46614-2025 Active Metallic materials—Instrumented indentation test—Determination of fracture toughness 金属材料 仪器化压入试验 断裂韧度的测定 Standard Type GBT ICS 77.040.10 CCS H22 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A