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- The main cause of low impact toughness is that following the long cooling time, the structure becomes coarsing and appears corse-grained twin-mastensite. 冷却时间长,显微组织粗化,出现粗大孪晶马氏体,这是影响韧性低的主要原因。
- Low impact toughness 低温韧性
- The Influence of Heat Treatment Technology on the Impact Toughness and Hardness of White Cast Iron With Low Cr and Cu. 热处理工艺对低铬铜白口铸铁冲击韧性和硬度的影响
- Low carbon bainitic steel is a new kind of structural steel for its excellent low-temperature impact toughness and welding property. 低碳贝氏体型非调质钢是一种新型钢种,具有良好的低温冲击韧性和焊接性能。
- It was shown that the impact toughness of HAZ is 50% of base metal. 结果表明,该钢的焊接热影响区的冲击韧性较母材降低50%25以上;
- The results showed that the plate had high strength and low temperature impact toughness and good lamellar tearing resistant property and was weldable. 试验表明抗层状撕裂钢板具有高强度、高低温韧性、易焊接以及良好的抗层状撕裂性能,产品实物质量优于国家标准要求,满足了用户的特殊需求。
- It has low diffusible hydrogen and good low-temperature impact toughness, suitable for welding middle-carbon steel and pressure containers of low-temperature steel. 扩散氢含量低,低温冲击性能优异,适用于低温钢、中碳钢等压力容器的焊接。
- An introduction class to aerobics. Low impact and intensity. 最为入门的有氧课程,非常合初学者。
- This research studied the effects of quenched and tempered microstructure on the medium and low temperature impact toughness of grade CA-is martensitic stainless steel. 摘要本研究系探讨CA-15麻田散铁不锈钢铸件,经沃斯田铁化与回火处理后,材料组织改变及中/低温冲击韧性变化的情形。
- The quenched and tempered steel WH80Q offers high strength, excellent low temperature impact toughness, lamellar tearing resistance and lower aging sensitivity factor. 舞钢研制开发的调质钢WH80Q具有高强度、良好的低温冲击韧性、抗层状撕裂性能、较低的时效敏感性系数。
- With the addition of EPDM and MMT, the notched impact toughness of PET was greatly improved. EPDM及增容剂的引入都较大程度地改善了复合材料的缺口冲击强度。
- Slow food is an example of where high quality products from a local economy produce a low impact lifestyle. 缓慢食品运动,是本土经济的高质量产品产生对生态环境低影响的生活方式的一个范例。
- The effect of the radius of the curvature on the impact toughness of POM and the toughened TPU blend was studied. 研究了缺口曲率半径对纯POM以及TPU增韧体系冲击韧性的影响;
- The effect of RE and heat treatment on eutectic carbide morphology and impact toughness of white cast iron was studied. 研究了稀土变质与热处理对白口铸铁的共晶碳化物形貌及冲击韧度的影响。
- A high sweet spot, i.e. a center of percussion close to the tip of the racquet is good because it means low Impact Force. 甜点在这条轴线上的位置越高(离手越远,离拍头越近),就越好。
- The mechanical properties are another impoetant side and their kernal is impact toughness. 熔敷金属的力学性能是自保护药芯焊丝研制过程中的重要方面,其中韧性是核心问题。
- It shows the impact toughness and ductility of AISI 304 were not affected by repeated weld-repairs. 检视低温冲击值及侧膨胀量,发现多次修焊后材料并未明显转脆,且延展性仍符合规范之要求。
- It shows that, at the low impact velocity (250 m/s), twin deformation is primary and slipping defor. 结果表明:在温变形的初始阶段,孪生为主要的变形机理和硬化机制。
- Vinylon fibre can improve the bending strength, fracture energy, fracture toughness and impact toughness. 维尼纶纤维能提高复合材料的杭折强度、断裂能、断裂韧性和冲击韧度;
- The austempering in salt bath can increase the impact toughness and wear resistance of the high alloy white cast iron. 盐浴等温淬火可提高高合金白口铸铁的冲击韧性及耐磨损性能。