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- Crazing is the invariable precursor of brittle fracture. 出现小裂纹必然是脆性断裂的前兆。
- The fracture is brittle fracture, and the reason is that material of forming dies takes place the temper brittleness. 引起脆性断裂的原因是成型模产生了回火脆性。
- Results show that the brittle fracture is mainly caused by hydrogen brittleness that results from the oxidation arid absorbing hydrogen of copper tube during braze welding. 同时在加热和冷却时，由于异种材料的热胀系数差别过大，产生的较大热应力作用于已存在的裂纹，促使裂纹二次扩展，甚至使得晶粒脱落产生空洞，最终导致焊接接头漏气失效。
- brittleness fracture of steel wire 钢丝脆断
- The cause of brittle fracture on power hacksaw blades-blank were analyzed. 检验分析了机用锯条坯脆断的原因。
- The results show that the brittle fracture cause of the tubing is that the brittleness of the nitrided structure is great and the normalized structure (pearlite and network ferrite) itself is brittle. 结果发现,渗氮层脆性较大,而且正火组织(珠光体+网状铁素体)本身韧性较低,这是油管发生脆性断裂的原因,建议选用调质处理油管进行渗氮。
- Choice of steel types for the metallic construction and boiler making for brittle fracture hazard prevention. 防止脆性断裂危险用金属结构钢和锅炉制造用钢的类型选择。
- The brittle fracture of steel columns and the damage to column bases were found in Kobe Earthquake. 在阪神地震中还发生了钢柱的脆断和柱脚的破坏。
- The fractography showed brittle fracture in high SiC layer and dimple fracture in the matrix of low SiC layer. 第5章研究了多层梯度复合材料的疲劳裂纹扩展行为。 研究表明，当疲劳裂纹从低SIC层向高SIC层扩展时，在相邻两层过渡区会发生裂纹扩展延滞。
- The failure of the driving shaft in a hoister is caused by typical brittle fracture under low stress. 卷扬机传动轴的断裂为典型的低应力脆断事故，主要原因是传动轴的组织疏松、晶粒粗大、。
- The bracket of as-cast ferritic nodular iron breaks due to brittle fracture when it is assembled. 摘要铁素体球铁铸件支架在装配时发生脆性断裂失效。
- Hoststructures are usually ductile shearzones or schistosity zones in brittle fracture zones. 金矿床为少硫化物石英脉型。
- And each other of main cracks and microcracks coalesces through ductile or brittle fracture of the metal ligament. 微裂纹以脆性方式导致界面分离，或以其裂尖区域位错发射的延性方式长大；
- It was concluded that brittle fracture of the valve body was the result of poor casting quality. 结果表明,该阀体爆裂属脆性断裂,爆裂系截止阀材质、组织及铸造质量差所致。
- The fracture is brittle fracture, and the reason is that material of forming dies takes place the temper br... 引起脆性断裂的原因是成型模产生了回火脆性。
- Where required, to examine deflections, stiffness requirements, and any special material and design provisions to obviate brittle fracture under adverse conditions. 必要时验算挠度、刚度要求、以及任一特殊材料和设计规定，以预防不利条件下的脆断。
- Except for a small length of web at the first fracture location, none of the cracks exhibited a brittle fracture mode of crack propagation. 除第一个断裂位置的一小段腹板外，没有一条裂纹显示出裂纹扩展的脆性断裂模式。
- Anastomosing brittle fracture system at Wutai Hengshan region controls the distribution of Mesocoic granites and related Au Ag and polymetal deposits. 五台-恒山地区的网状脆性断裂系统控制了中生代花岗岩类及其有关的金、银、多金属矿床的分布。
- There are such defects as furnace oxidation,beading,brittle fracture,distortion,unstable properties and so forth on commonly aged beryllium bronze. 铍青铜经常规时效处理后存在表面氧化、起泡、脆断、畸变和性能不稳定等缺陷。
- It is found that traveling block hook was brittle fracture and crack originated from original flaw per Macro fractography and micro fractography. 对游车大钩断裂事故进行了调查研究,对其断口形貌进行了宏观和微观分析,发现游车大钩为脆性断裂,断口起源于原始缺陷。
