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1)  Erosion temperature
冲蚀温度
2)  high temperature erosion
高温冲蚀
1.
The results showed that coating had typical layer shape,relatively high bonding strength and hardness,excellent high temperature erosion resistance because of the improvement on the erosion properties with the increase of temperature and angle.
结果表明,Fe-Al/Cr3C2复合涂层具有典型的层状结构、较高的结合强度和硬度;涂层的耐高温冲蚀性能良好,温度升高、角度增大,冲蚀性能提高;由于Cr2O3的存在以及涂层结合能的提高,Fe-Al/Cr3C2涂层的高温抗腐蚀性能较高;其常温和高温耐磨损性能也较高;应用研究表明,该涂层适合用于电站锅炉“四管”的防护。
2.
Results show that in comparison with substrate,the coatings possess excellent high temperature erosion resistances,erosion resistance improved with the increasing of temperature and impact angle;they also possess good high temperature corrosion properties,corrosion rate raised a little with the rising of temperature;the coatings have excellent room temperature .
用高速电弧喷涂技术制备了FeAlCr/Ni包Cr3C2 涂层 ,并对涂层的耐高温冲蚀性能、高温腐蚀性能和高温磨损性能进行了研究。
3.
The high temperature erosion of utility boiler tubes (water wall,superheater,reheater and economizer tubes)by fly ash is recognized as being one main cause of utility boiler tube failures.
水冷壁、过热器、再热器及省煤器管道的飞灰高温冲蚀磨损是电站锅炉管道失效的主要原因之一。
3)  impact speed
冲蚀速度
1.
The relationship between impact speed and erosion wear rate of several kinds of middle temperature abradable seal coatings was investigated by a CMS 100 self made vacuum sand erosion machine.
在自制的真空自由落砂式冲蚀磨损试验机上,对几种中温封严涂层的冲蚀率与冲蚀速度之间的关系进行了试验研究。
4)  impact angle
冲蚀角度
1.
ZrN coating was deposited on TC11 substrate by multi-arc plating,erosion resistance of ZrN coating was evaluated by solid-particle erosion testing using differential particles at differential impact angle and impact velocity,the surface and cross-sectional microscopy were examined in a scanning electron microscopy(SEM).
采用真空电弧镀在TC11钛合金上沉积ZrN涂层,固体颗粒冲蚀实验研究不同冲蚀颗粒、冲蚀速度、冲蚀角度对涂层抗冲蚀性能的影响,并用SEM观察表面及断面形貌。
5)  drilling depth
冲蚀深度
1.
The length of the bubble cloud equals to the standoff distance plus the drilling depth.
空泡云的长度还与冲蚀深度有一定的关系,即空泡云长度等于靶距和冲蚀深度之和。
6)  ablation temperature
烧蚀温度
补充资料:冲蚀


冲蚀
erosion corrosion

ehongsh-冲蚀(erosion corrosion)金属材料表面与腐蚀流体冲刷的联合作用,而引起材料局部的金属腐性。在发生这种腐蚀时,金属离子或腐蚀产物因受高速腐蚀流体冲刷而离开金属材料表面,使新鲜的金属表面与腐蚀流体直接接触,从而加速了腐蚀过程。若流体中悬浮较硬的固体颗粒,则将加速材料的损坏。一般说来,流体的速度愈高,流体中悬浮的固体颗粒愈多、愈硬,冲刷腐蚀速度愈快。腐蚀介质流动速度又取决于流动方式:层流时,由于流体的粘度,在沿管道截面有一种稳态的速度分布;湍流时,破坏了这种稳态速度分布,这不仅加速了腐蚀剂的供应和腐蚀产物的迁移,而且在流体与金属之间产生切应力,能剥离腐蚀产物,从而加大了冲蚀速度。因此,在管道的拐弯处及流体进入管道或贮罐处容易产生这种破坏。另外,金属表面成膜的特征也可以影响冲蚀速度。硬的、致密的、连续的、粘附性强的膜冲蚀速度小,反之则大。抑制或减少冲蚀的措施是:选择耐蚀性和耐磨性好的材料;改变腐蚀环境如添加缓蚀剂,过滤悬浮固体粒子,降低温度,减小流速和湍流;采用栖牲阳极作阴机保护等。 (1陈树俊l)
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