1) brittle crack of ratchet wheel form
棘轮型脆性断裂
2) brittle type fracturing
脆型断裂
3) brittle fracture
脆性断裂
1.
Numerical simulation of brittle fracture at V-shaped notches under mixed mode loading;
I-II复合型V型切口脆性断裂的数值模拟
2.
Maximum circumferential stress criterion of brittle fracture at the interface edge of bonded materials;
结合材料界面端脆性断裂的最大周向应力准则
4) brittle failure
脆性断裂
1.
The brittle failure of the foundation bolt for ladle turntable under the static load and low stress happens due to unsuitable between intensity and toughness in this high strength steel.
介绍了钢包回转台地脚螺栓在低应力状态下发生脆性断裂的实例。
2.
It has supplied advantageous scitific evidence to the anchor - chain's brittle failure at low temperature.
为锚链钢的低温脆性断裂提供了有利的科学依据。
3.
This paper analyses the reason that brittle failure is occurred and the factor that can influence brittle failure.
分析了钢结构发生脆性断裂的原因、影响结构脆性破坏的因素,提出了预防脆性破坏的措施。
5) brittle fault
脆性断裂
1.
A case of application using apatite fission track to restrict the time of brittle fault movement;
利用磷灰石裂变径迹约束脆性断裂活动的时限
2.
The earlier ductile shear zone controlled the distribution of the quartz veins, and the late brittle fault controlled the orebody directly.
早期韧性剪切带只对矿脉起宏观控制作用,晚期的脆性断裂为含金石英脉的直接控矿构造。
3.
Jin-Chang-Yu gold occurred in the course of the formation of brittle-ductile shear zone(B-DSZ) and the brittle fault(BF)in Mesozoic era.
金厂峪金矿是中生代脆一韧性变形带和脆性断裂形成过程中产生的,严格受北北东向脆一韧性剪切带和脆性断裂控制,在两个阶段矿化叠加部位,金矿进一步富集,构成金厂峪型金矿。
6) brittleness fracture
脆性断裂
1.
Study on brittleness fracture resulted from silicon-rich region in 4Cr9Si2 steel;
4Cr9Si2钢中富硅区引起的脆性断裂研究
2.
The results indicated that head bolt was occurred brittleness fracture to lead to the failure of engine cylinder gasket due to the hardened surface layer and bad appearance quality of the cylinder head bolt.
分析了断裂缸盖螺栓的化学成分、金相组织、宏观及微观断口形貌,以及力学性能和螺栓装配受力情况,分析结果表明,由于缸盖螺栓表面存在硬化层而且外观质量不佳,螺栓发生脆性断裂,造成了发动机冲缸垫故障,并提出了改进措施。
3.
The results showed that the main reason was that the content of C and Si exceeded standard,the content of Mn exceeded standard consumedly,large amounts of bainite and less ferrite were produced,and the hardness was a times more than the normal hardness,led to the property of 36U profile steel was abnormal and the brittleness fracture happened in bending process.
结果显示:碳和硅含量超标,锰含量严重超标,使组织中出现较多贝氏体,且铁素体含量降低,同时其硬度比正常型钢的硬度高近一倍,最终导致其性能异常,发生弯曲脆性断裂。
补充资料:脆性断裂
分子式:
CAS号:
性质:不伴随有明显塑性形变的断裂现象。在应力-应变曲线上应力近乎线性地随应变而增长直至断裂。断裂对应的应变值一般小于5%。脆性断裂和韧性断裂的区别还表现在较低的断裂能和具有光滑特征的断裂面。同一聚合物材料在不同条件下可以表现为脆性断裂或韧性断裂。在较低的温度和较大的应变速度时容易发生脆性断裂。一般聚合物在明显低于玻璃化温度时往往表现出脆性断裂行为。随着温度升高,超过脆性-韧性转变温度时,断裂方式就变成韧性的。
CAS号:
性质:不伴随有明显塑性形变的断裂现象。在应力-应变曲线上应力近乎线性地随应变而增长直至断裂。断裂对应的应变值一般小于5%。脆性断裂和韧性断裂的区别还表现在较低的断裂能和具有光滑特征的断裂面。同一聚合物材料在不同条件下可以表现为脆性断裂或韧性断裂。在较低的温度和较大的应变速度时容易发生脆性断裂。一般聚合物在明显低于玻璃化温度时往往表现出脆性断裂行为。随着温度升高,超过脆性-韧性转变温度时,断裂方式就变成韧性的。
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