In this paper , the cause of brittleness , brittleness destruction characteristic , influence factor , improving toughness technology and mechanism are investigated 本文研究了高强轻集料混凝土脆性的产生、脆性破坏特征、影响因素、增韧技术以及增韧机理。
The results showed that the concentration , size and shape of si particles in altilola , ast101a and zl101 had some effects on the fatigue threshold , and the irregular shaped brittle phase of fe intermetallics caused the fatigue threshold decreased 结果表明， ast101a 、 aiti101a和zl101中51粒子的浓度、大小和形貌对材料疲劳门槛值的高低有一定的作用，脆性的富fe相是疲劳门槛值降低的另一个重要原因。
The specified works finished are listed : 1 . with experimental load - displacement curves and acoustic emission technology , it was found that the material shows pseudo - plastic behavior under tensile loads and quasi - elastic behavior under the flexural loads 通过断裂试验的载荷位移曲线和声发射检测，发现了该材料的切口试样在拉伸载荷作用下表现为伪塑性的特征；在弯曲载荷作用下表现出准脆性的特征。
The effects of alloy elements nb , v , ti , re on mechanical properties , corrosion - abrasion resistance , fragility of ferritic stainless steel cr30mo have been investigated . the results show microalloy is beneficial to increas corrosion - abrasion resistance and suppress brittleness of cr30mo 研究了铌、钒、钛、稀土元素对不锈钢的组织结构、力学性能、磨蚀性能和脆性的影响，结果表明微合余化是提高铁素体不锈钢耐蚀性，降低脆性的有效途径。
The analysis and research of brittleness as a fire - new interdisciplinary is in need of establishing one kind span - new philosophizing system . in this way , it not only is of spacious space of science & research ' s development , but also is of very large potential value of application in every region 脆性的分析和研究作为一门新兴的交叉学科，需要建立一种崭新的理论体系，这样不仅具有广阔的科研发展空间，而且在各行各业均具有很大的潜在应用价值。
On the basis of theory analysis , we have set up the ideal mode of high toughness and strength lightweight aggregate concrete , which sets an important basis for the designation , preparation and produce of hslc , and we also set up the brittleness destruction model of high - strength lightweight aggregate according to many experimental data . the course of hslc ' s destruction includes four stages : elastic stage of line , strengthening stage , stage of falling of stress and soften stage 通过实验分析了高强轻集料混凝土脆性的影响因素：水胶比、砂率、胶凝材料组成和轻集料种类，以及它们与高强轻集料混凝土脆性之间的关系；在实验和理论分析的基础上，建立了高强轻集料混凝土的理想模型，为设计、制备和生产高强高韧性轻集料混凝土提供了理论依据。
