...m豆丁网 由以下几个 部分组成：连接区或熔化区（bond or melting zone，MZ）； 中间金属／基体金属界面扩散区（diffusion zone，DZ）；基 体金属区（base metal，BM）． 连接区（MZ）由等温凝固区（isothermal s...
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... 化学热处理thermo-chemical treatment 扩散层diffusion zone 局部热处理local heat treatmetn ...
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heat diffusion zone 热扩散区
heat compensator diffusion zone 热扩散区
diffusion zone cracking 扩散区纹裂
unexposed diffusion zone 未暴露扩散区
Zone III diffusion 扩散三区
Zone I diffusion 扩散一区
Zone II diffusion 扩散二区
The diffusion zone 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。
The results of experiments showed that the Nb can raise the depth of diffusion zone, 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。
By means of optical microscopy, microhardness testing, X-ray diffractometry (XRD) and scanning electron microscopy (SEM), the oxygen-diffusion zone was characterized in the present paper.
通过金相观察、显微硬度测试、x射线衍射(XRD)及扫描电镜(SEM)分析，研究了渗氧层的结构和性能。
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