对H 13钢退火碳化物颗粒的平均直径、弥散度与硬度的关系的研究表明,在碳化物体积分数一定时,硬度是碳化物颗粒平均直径的函数,颗粒直径越大,退火硬度越低。
The relationship among the diameter and dispersity of the carbide and the hardness of the annealed H13 steel shows that when the volume of the carbide is constant, hardness is the.
高于此点,由于超过共析点钢完全由珠光体和退火状态的渗碳体组成,硬度增加并不多。
Above this point the hardness can be increased only slightly, because steels above the eutectoid point are made up entirely of pearlite and cementite in the annealed state.
明确了H13钢退火后硬度的高低与碳化物粒子的大小、相对量及碳化物的类型的依赖关系。
The results show that the hardness of H13 steel after annealing depends on size, relative amount and type of carbide.
退火温度越高,硬度下降幅度越大。
The hardness of the alloy decreased as the annealing temperature increased.
硬度能做到61——65hrc成熟工艺是:铸造后软化退火,便于加工,加工后空冷淬火加低温去应力回火。
Hardness can do 61 — 65hrc maturation process is: annealing, softening after casting machining, machining of air cooling after quenching and low temperature stress tempering.
用显微硬度、电子拉伸等试验方法,测定了银、铜、钽的硬度、抗拉强度、延伸率与冷加工变形量的关系及冷加工态银、铜、钽退火软化曲线。
The hardness, tensile strength and elongation of Ag, cu and Ta, their relationship with the degree of cold work and soften annealing curves of cold-worked Ag, cu and Ta were investigated.
对比研究了不同退火温度对贝氏体球铁辊环组织和硬度的影响,提出了贝氏体球铁辊环合适的退火温度。
The influences of different annealing temperature on the structure and hardness was compared and investigated. The proper annealing temperature for the bainite nodular iron roller ring was proposed.
随着439不锈钢合金成分中铝含量的增加,冷轧退火板的晶粒尺寸较小,硬度、屈服强度和抗拉强度升高。
When the aluminum content increases, the grain size of cold-rolled annealed panel becomes small, but the hardness, yield strength and tensile strength of stainless steel 439 increase.
由于超过共析点钢完全由珠光体和退火状态的渗碳体组成,因此高于此点硬度增加并不多。
Above this point the hardness can be increased only slightly, because steels above the eutectoid point are made up entirely of pearlite and cementite in the annealed state.
建立布氏硬度和退火温度之间的函数及数学模型。
The function and mathematics model between brinell hardness and annealing temperature was established.
试验结果表明,随着退火温度的升高电铸镍药型罩的显微硬度明显降低,内部晶粒呈现等轴晶形态。
Experimental results indicate that the micro-hardness of electroformed nickel shaped charge liner decreases obviously as the annealing temperature rising and the grains show equiaxed in shape.
如果把烧红的钢丝直接取出冷却,则退火不完全,钢丝硬度大,不易绕制弹簧。
If the red hot wire directly out of the cooling, the annealing is not complete, steel wire hardness, not easy to spring.
不同的再结晶退火温度与试样的显微硬度表现出复杂关系。
The different recrystallization annealing temperature and the micro-hardness of sample show the complex relationship.
经高温扩散退火处理后,显微硬度均匀性显著提高。
Uniformity of microhardness improved significantly after high temperature diffusion annealing.
观察其显微组织和晶粒度,测定其显微硬度,分析了金相组织、晶粒度和硬度随固溶退火温度、保温时间、冷却速度的变化。
The microstructure was observed and the grain size and Vickers hardness were measured, the changes of microstructure, grain size, hardness and solid solution annealing process were discussed.
观察其显微组织和晶粒度,测定其显微硬度,分析了金相组织、晶粒度和硬度随固溶退火温度、保温时间、冷却速度的变化。
The microstructure was observed and the grain size and Vickers hardness were measured, the changes of microstructure, grain size, hardness and solid solution annealing process were discussed.
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