The diffusionzone width of main alloying elements increases and hardness of the friction weld zone near TC4 titanium alloy side improves after post-weld heat treatment.
经焊后回火热处理后,主要合金元素沿焊合区的扩散区宽度增大;焊合区钛合金侧硬度值显著提高。
2
The results of experiments showed that the Nb can raise the depth of diffusionzone, hardness, wear resistance, strength and toughness of the nitriding layer of the matrix steel.
实验结果表明,铌能增加扩散层深度、 硬度及耐磨性,提高渗层的强韧性。
3
By means of optical microscopy, microhardness testing, X-ray diffractometry (XRD) and scanning electron microscopy (SEM), the oxygen-diffusionzone was characterized in the present paper.