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- Three kinds of techniques for improving the metal fatigue property in industry were introduced,including cold deform strengthening,laser surface treatment and ion implantation. 介绍和论述了冷变形、激光表面处理技术和离子注入三种工业上用于改善金属材料疲劳性能的强化方法。
- cold deformation strengthening 冷变形强化
- Cold deformation and heat treatment have been studied through testing mechanical property and conductivity of Cu-Cr alloy, and strengthening mechanism has been presented in the paper. 摘要通过测试力学性能和导电性能，对铜铬合金进行了冷变形及退火工艺的探索，并进行了强化机理分析。
- The result shows that large quantity of Cr particles has precipitated after cold deformation and heat treatment. 结果表明，冷变形和退火处理促进了材料中铬粒子的析出；
- Compared with non-deformation steel,the fatigue stress of 1Cr18Ni9Ti austenitic stainless steel after 60% cold deformation is raised about 1.65 times. 经60%25变形后,钢的疲劳强度提高了65%25左右。
- The results show that cold deformation can largely raise the mechanical properties of the steel,especially the fatigue property. 结果表明,冷变形可提高钢的各种强度性能指标,尤其大大改善疲劳性能。
- It is found that after(60%)cold deformation and recrystallization annealing,the UT2 with fine, uniform and equiaxial grains is the best. 结果表明，变形率为60%25经再结晶退火后所形成的细小、均匀等轴晶粒的UT2超精切削后表面质量最好。
- The results indicated that the strength of alloy increases, the ductility decreases and the grains are refined as the cold deformation increases. 结果表明，随着冷变形量的增加，合金的强度提高、塑性下降、晶粒细化；
- This could be attributed to the formation of high-density dislocations and vacancies during cold deformation, which provided a high diffusion path of carbon atoms. 其原因是在冷变形过程中产生了高密度位错以及大量空位等缺陷，为碳原子的扩散提供了高速率扩散通道，促进了碳原子的扩散。
- The prepared Al2O3/CU composites have a good cold deformation ability. After 50% cold deformation, the brinell hardness of the Al2O3/CU composites significantly increased, reached 116, but the electric conductivitychanged a little. 由反应铸造法制备的Al2O3/Cu复合材料的冷锻性能良好,经过50%25冷压变形后,其硬度可以达到116(HB),变形量越大,硬度越高,而电导率则变化不大。
- Keywords tungsten heavy alloy;swaging;deformation strengthening; 高比重钨合金;旋锻;形变强化;
- The decrease in ductility is mainly due to the cell dislocation substructure distri-buted inhomogeneously and the hardening of precipitates free zones at grain bound-aries caused by prior cold deformation. 预先冷形变造成不均匀分布的胞状位错结构及晶界无沉淀带加工硬化,乃是导致塑性下降的主要原因。
- Keywords tungsten alloy;swage;deformation strengthening; 钨合金;锻造;变形强化;
- The effect of cold deformation on the susceptibility of type 18-8 austenitic stainless steel to intergranular (IG) corrosion has been studied by employing a standard method (ASTM A262, Practice E). 本文用美国材料试验协会的一种标准方法ASTM A262E研究了18~8型奥氏体不锈钢的冷变形对其晶间腐蚀敏感性的影响.
- This strain of wheat can grow during a cold spring. 这种小麦可以在寒冷的春天生长。
- Simulation of Deformation Strengthening Curve of Hypoeutectoid Steel 亚共析钢形变强化曲线模拟
- Study of Deformation Strengthening to Tungsten Alloys by Hydrostatic Extrusion 钨基高密度合金的静液挤压形变强化研究
- DEFORMATION STRENGTHENING OF TUNGSTEM HEAVY ALLOYS BY HYDROSTATIC EXTRUSION 高比重钨合金的静液挤压强化
- The girl stood shivering with cold on the doorstep. 那姑娘站在门前的台阶上,冷得直打哆嗦。
- DEFORMATION STRENGTHENING TO TUNGSTEN ALLOYS THROUGH HYDROSTATIC EXTRUSION 钨合金的静液挤压变形强化
