(裝甲兵工程學(xué)院 機(jī)械工程系，北京 100072)
摘 要: 針對(duì)傳統(tǒng)維氏硬度測(cè)試中因Vickers壓痕形貌不清晰導(dǎo)致的維氏硬度無(wú)法識(shí)別問(wèn)題，應(yīng)用量綱定理和有限元數(shù)值分析方法對(duì)儀器化Vickers壓入響應(yīng)進(jìn)行了系統(tǒng)分析，同時(shí)，結(jié)合維氏硬度有限元數(shù)值計(jì)算結(jié)果，揭示儀器化Vickers壓入比功、馬氏硬度與維氏硬度的近似函數(shù)關(guān)系。基于上述關(guān)系，提出由Vickers壓入比功We/Wt和馬氏硬度HM識(shí)別材料維氏硬度HV的新方法，對(duì)該方法進(jìn)行測(cè)試精度分析，驗(yàn)證結(jié)果表明該方法較ISO14577中所提維氏硬度儀器化Vickers壓入方法具有更高的測(cè)試精度。
關(guān)鍵字: 儀器化Vickers壓入；壓入比功；馬氏硬度；維氏硬度
（Department of Mechanical Engineering, Academy of Armored Force Engineering, Beijing 100072, China）
Abstract:The problem of Vickers morphology is not clear due to the Vickers hardness does not recognize during the traditional Vickers hardness testing. The instrumented indentation test were analyzed by employing dimensional theorem and finite element method, meanwhile, combined with the finite element numerical results of Vickers hardness, the approximate function relationships among Vickers indentation work ratio(We/Wt), martens hardness and Vickers hardness were revealed. Based on the relationships, a new method was then proposed to determine the Vickers hardness of materials by Vickers indentation work ratio and martens hardness, and its accuracy was analyzed. The results show that, compared with ISO14577, this method has higher accuracy.
Key words: Vickers instrumented indentation; indentation work ratio; martens hardness; Vickers hardness
