热处理
熱處理
열처리
HEAT TREATMENT
2013年
5期
66-71,72
,共7页
硬度测定%维氏硬度%努氏硬度%硬度换算
硬度測定%維氏硬度%努氏硬度%硬度換算
경도측정%유씨경도%노씨경도%경도환산
hardness test%Vickers hardness%Knoop hardness%hardness conversion
用于测定表面硬化层特别是薄层的维氏和努氏显微硬度的应用逐渐广泛。自ISO 2639、ISO 6507-1和ISO 4545及GB/T 9450等标准颁布及实施以来，努氏硬度用于薄表层硬度梯度测量的优越性已得到认可。但同时应充分认识努氏硬度的特征、测量精确度和影响因素及仪器校验的重要性。介绍了努氏硬度、真实努氏硬度的测定方法，影响显微硬度测试精度的因素及努氏洛氏硬度的换算。
用于測定錶麵硬化層特彆是薄層的維氏和努氏顯微硬度的應用逐漸廣汎。自ISO 2639、ISO 6507-1和ISO 4545及GB/T 9450等標準頒佈及實施以來，努氏硬度用于薄錶層硬度梯度測量的優越性已得到認可。但同時應充分認識努氏硬度的特徵、測量精確度和影響因素及儀器校驗的重要性。介紹瞭努氏硬度、真實努氏硬度的測定方法，影響顯微硬度測試精度的因素及努氏洛氏硬度的換算。
용우측정표면경화층특별시박층적유씨화노씨현미경도적응용축점엄범。자ISO 2639、ISO 6507-1화ISO 4545급GB/T 9450등표준반포급실시이래，노씨경도용우박표층경도제도측량적우월성이득도인가。단동시응충분인식노씨경도적특정、측량정학도화영향인소급의기교험적중요성。개소료노씨경도、진실노씨경도적측정방법，영향현미경도측시정도적인소급노씨락씨경도적환산。
Vickers and Knoop hardness tests are under progressively popularizing in the measurement of hardness of hardened case , especially thin hardened case .The superiority of Knoop hardness test in the measurement of hardness profile in thin hardened case has been universally accepted since the promulgation and implementation of ISO 2639,ISO 6507-1,ISO 4545 and GB/T 9450.Simultaneously, the speciality, test accuracy and influencing factors as well as the importance of tester calibration are fully recognized for the Knoop hardness test .The following points were introduced as well , including the test methods of Knoop hardness number and true Knoop hardness number , the factors influencing microhardness test accuracy and the conversion of Knoop to Rockwell C .
