硬度降低 meaning in English
abating
Examples
- Microhardness tester indicate that the hardness increases with the increase of n2 flow rate ( ar flow rate is fixed ) and decreases with the increases of ar flow rate ( n2 flow rate is fixed )
经用显微硬度计测试，我们发现随着n2流量的增加(固定ar流量) ，薄膜的硬度增高。随着ar流量的增加(固定n2流量)薄膜的硬度降低。 - It is reverse for the composites having low cr content . 3 . hardness of the composites decreased and electrical conductivity increased with decrease of cr content while infiltration temperature is same
在同一温度进行熔渗时，随着cr含量的降低，材料的硬度降低，电导率升高：加入fe后材料的硬度显著升高，电导率则降低。 - S . the composite prepared has excellent heat stability and high - temperature property . during the course of high temperature annealing , the hardness of the composite does not reduce obviously until 973k , while the temperature of pure copper ( after cold machining ) is 423k in the same conditions
制备的cr _ 2o _ 3 cu复合材料具有良好的热稳定性及高温性能，在高温退火处理过程中，硬度显著降低点的温度为973k ，大大高于纯铜的硬度降低点。 - Moreover , it was found that the microstructure and physical properties of dlc film were affected to some extent by the distance between target and substrate . when the distance between target and substrate increases , sp 3c content in the deposited dlc film decreases . accordingly , the value of surface roughness , microhardness , friction coefficient , residual stress and band gap became lower in the same way
此外，靶基距对dlc薄膜的结构和性能也有一定的影响，随着靶基距增加， dlc薄膜中的sp ~ 3c含量减少， dlc薄膜的表面粗糙度降低，显微硬度降低，摩擦系数减小，残余应力减小，光学带隙eg减小。 - Annealing could reduce hardness and raise toughness , which could be prone to mechanical machining . quenching and low temperature tempering could raise intensity and hardness of materials , not reduce toughness obviously . quenching on same temperature caused ticp / fe in situ composites having the best integral machine properties
退火处理使材料的硬度降低，韧性提高，便于机械加工；淬火+低温回火处理使材料的强度和硬度提高，而韧性无明显的降低；采用等温淬火工艺，可使tic _ p fe复合材料具有最好的综合机械性能。