Indentation methods of hardness testing comprise two principal groups. 壓痕法測定硬度包括兩大類(lèi)。
Crack nucleation and propagation in wear-resistant bainite ductile cast iron were investigated by press trace method and SEM. 采用壓痕法及掃描電鏡觀(guān)察，研究了抗磨貝氏體球鐵中裂紋的形核與擴展。
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