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Abstract:
对超细晶WC-Co硬质合金的复相显微组织进行了系统的定量化表征和分析,获得了WC晶粒尺寸d_(WC),Co相平均自由程L_(Co)和WC晶粒邻接度C_(WC-WC)等显微组织参数与力学性能的定量关系,模型预测结果与实验测定结果符合很好.结果表明,当C_(WC-WC)基本相同时,超细晶硬质合金的硬度分别与d_(WC)~(-1/2)和L_(Co)~(-1/2)成线性正比关系,断裂韧性K_(IC)分别与d_(WC)~(-1/2)和L_(Co)~(-1/2)成确定性函数关系.在Co含量一定、WC平均晶粒尺寸基本相同的情况下,随着C_(WC-WC)的增大,超细晶硬质合金的横向断裂强度降低,且当C_(WC...
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金属学报
Year: 2011
Issue: 09
Volume: 47
Page: 1188-1194
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 24
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