摘要
随合金标称Ｃｏ含量（Ｗｔ．％）改变所引起的γ相平均自由程λ的变化所建立的两相高碳ＷＣ－Ｃｏ硬质合金中比矫顽磁力Ｈｓｃ同断裂韧性Ｋ＿（ＩＣ）间的关系具有反向相关的线性规律：Ｋ＿（ＩＣ）＝３１．３１一２７．１Ｈ＿（ＳＣ）；γ相成分对ＷＣ－Ｃｏ合金Ｈ＿（ＳＣ）和Ｋ＿（ＩＣ）影响的一致往，在γ相成分相同的前提下，根据上述关系用Ｈ＿（ＳＣ）对ＷＣ－Ｃｏ台台的Ｋ＿（ＩＣ）进行间接的非破坏性鉴定是可行的。
Ther relation of fracture toughness KIc with specific coercive force Hscof two-phase and high carbon WC-Co cemented carbides established bymeans of varying Co wt.%in alloys in order to altering γ-phase mean freepath λis opposite linear interrelationship:KIC=31.3l-27.11Hsc.Because theeffect of γ-phase composition on Hsc of WC-Co alloy is consistent with thaton KIC,evaluating KIC with Hsc according to this relation is possible whenthe γphase composition is consistent with each other.
出处
《有色金属》
CSCD
1995年第4期72-75,88,共5页
Nonferrous Metals
关键词
硬质合金
断裂韧性
比矫顽力
cemented carbides
fracture toughness
specific coerive force
