After tempering hardness的意思|示意

Tempering resulting from grinding heat caused surface hardness changes of hardened steels after grinding.

磨削热导致回火引起淬硬钢磨削后表面硬度变化。

The hardness and the wear resistance decrease after multiple tempering.

多次回火后，高钒高速钢硬度降低，耐磨粒磨损性能下降。

Then hardness of coatings and substrate was measured. By means of bend-rotation fatigue tests, fatigue strength of coating and uncoating specimens was compared after hardening and tempering.

然后测量涂层和基体的硬度，并通过采用旋转弯曲疲劳试验比较涂层试样与未涂层试样的疲劳强度。

The point of intersection of elastic line and plastic line moves toward the low cycle life with the hardness of the spring steel raised after tempering from the strain fatigue curve.

在应变疲劳曲线上，弹性线和塑性线的交点随弹簧钢回火后硬度的升高而向低循环寿命移动；

Because the hardness of substrate was low after vacuum melting, the hardness of substrate was increased by hardening and tempering methods.

由于真空烧结涂层基体的硬度较低，采用对基体调质处理的方法来提高涂层基体的硬度。

Hardness can do 61 — 65hrc maturation process is: annealing, softening after casting machining, machining of air cooling after quenching and low temperature stress tempering.

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。