| 1. | Keywords : fractography , brittle material , failure mode , model rock
关键词：裂形学、脆性材料、破裂模式、人工岩石。
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| 2. | Welding fractography analysis
焊接金相分析
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| 3. | Welding fractography analysis
焊接金相分析
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| 4. | Standard practice for fractography and characterization of fracture origins in advanced ceramics
高级陶瓷中断裂处的断口组织照片和表征的标准规程
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| 5. | Fracture analysis of those bolts was conducted by means of macro examination , fractography and chemical composition analysis
采用宏、微观检验和化学成分分析等方法对失效件进行了检测。
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| 6. | By means of chemical composition analysis , hardness testing , non - metallic inclusion examination , metallographic examination , macro and micro - fractography fracture analysis were conducted
对剃齿刀断口进行了宏、微观检验、化学成分分析、硬度测试和非金属夹杂物及显微组织检验。
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| 7. | The tensile strength and young ’ s modulus of cf / ep specimens before and after vacuum thermo - cycling were measured by an electrical universal material testing machine . an electron scanning microscope was used to perform the surface morphology and fractography of specimens
真空热循环试验前后cf / ep层合材料的拉伸性能由电子万能材料试验机完成,本文利用扫描电镜观测试样表面形貌和拉伸后的断口形貌。
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| 8. | From macroscopical to microcosmic , from qualitative to quantitative , from fracture surface analysis in fracture failure to fractography about mechanism , it stated position and function of fracture surface analysis in fracture failure analysis and introduced the contents , evidence , fundamental skills and methods of fracture surface analysis and emphasized the development of fractography and the research on fracture micromechanism
摘要从宏观到微观、从定性到定量、从断裂失效的断口分析到机理研究的断口学，阐述断口分析在断裂失效（事故）分析中的地位和作用，介绍断口分析的内容及其依据、基本技能和方法，著重说明断口学的发展和微观断裂机理的研究。
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| 9. | : 36 < kth < 37 mpa / m3 / 2 , 42 < kih < 44mpa / m3 / 2 , 51 < kc < 52 mpa / m3 / 2 through the sem fractography , it is know that the susceptibility to brittle failure at room temperature is more than below 100 ? . and the susceptibility to brittle failure increase with hydrogen increasing , under the sustained loading , ductile cracking appears . the quantity of brittle cracking is more with crack growth
T44mpa m ‘ q ， sl lt52mpa in ’ ”断口分析表明，该合金充氢后其室温时的氢脆敏感性大于100oc时的氢脆敏感性；且随氢含量升高，氢脆敏感性增加：在恒载荷的作用下，该合金裂二纹开始扩展时显示的是韧性起裂；随裂纹增长，试样脆性断裂的比例增大。
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| 10. | Experimental results indicate that : the ae characters of single bundle , 2 - d woven and 3 - d braided c / sic composite are different because of their different structures , damage mechanisms and developing progress , which can be verified by micrographic examination on specimens " initial state and fractography
实验研究表明：单纤维束、二维编织和三维编织c sic复合材料由于结构形式不同，损伤机理和发展过程不同，表现出的声发射参量的特性也不同；试件初始状态和断口的显微观察证实了该推断。
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