碳氮化物

Furthermore, investigation was conducted on the rule of deformed austenite recrystallization and carbonitride precipitation and the interaction between them.

此外研究了形变奥氏体再结晶和碳氮化物的析出规律以及两者间的相互作用。

The effects of C,V and N contents fluctuating on austenite composition were also investigated.

基于钢中各析出相之间的相互溶解现象，分析了实际生产用钢中碳氮化物的类型及析出次序。

The inserts are large with an iC, inscribed circle diameter, of 19 mm and a thickness of 6 mm with a composition of 5-10 wt-% Co, 5-12 wt-% cubic carbides or carbonitrides of the metals Ti, Ta and/or Nb, and balance WC with a stratified binder phase enriched surface zone 15-40m thick.

刀片很大，其内接圆直径iC≥19mm，厚度≥6mm，其组分为：5-10wt％的Co、5-12wt％的金属Ti、Ta和/或Nb的立方碳化物或者碳氮化物，并且其余为WC，分层富粘结相表面区域为15-40μm厚。

Deformation greatly promoted carbonitride isothermal precipitation and made C-curve shift leftwards. The position and shape of C-curve depended on the content of Nb and N to a great extent, C-curve shifted leftwards a little when N content increased and its nose temperature was raised with Nb content increased. 3 when cooling rate increased, start temperature and finish temperature of continuous cooling precipitation decreased, full precipitation became difficult to take place, the volume fraction of carbonitride precipitation decreased, molar fraction of Nb and C dissolved in austenite increased, and the precipitation grain was further refined. Deformation shorten precipitation start time during continuous cooling, raised precipitation start temperature, accelerated precipitation kinetics of carbonitrides.

计算表明：1在Fe—Nb—C系统中，随着温度的降低，析出相的平衡体积分数增加，溶解在奥氏体中的Nb、C的摩尔分数降低，析出相中C和Nb的原子分数的比值v增加；2变形大大促进了碳氮化物的等温析出，使C曲线左移，Nb和N的含量与C曲线的位置和形状有一定的关系，N含量的增加，使C曲线略有左移，而Nb的含量的增加使得C曲线的鼻子区上移；3随着冷却速率的增大，连续冷却析出的开始温度和结束温度均有所降低，并且析出变得越来越不充分，析出相体积分数明显减小，溶解在奥氏体中Nb和C的摩尔分数增大，析出相粒子被明显细化，变形大大缩短了CCP过程碳氮化物析出的开始时间，提高了析出的开始温度，促进了析出动力学。

Dissolution of carbonitride in high-strength steel containing Ti and Nb was investigated by means of phase analysis and X-ray diffraction.

采用相分析和X射线衍射技术，研究了含Ti、Nb等微合金元素的高强钢中碳氮化物的溶解行为。

The central part of the ring structure may be either carbide with a high W content or carbonitride with a high Ti content.

环状结构心部可以是以钨等重金属元素为主要成分的碳化物，也可以是以钛为主要成分的碳化物和碳氮化物。

The equilibrium volume fraction, chemical driving force of carbonitride precipitates, atom fraction of each element in austenite and carbonitride at different temperatures were calculated.

以析出热力学为基础，对Fe-Nb-C-N系统中奥氏体/碳氮化物的热平衡过程，计算了不同温度下碳氮化物析出相的平衡摩尔分数、化学驱动力、各组元的原子分数及奥氏体组分等。

This article discussed the thermodynamic model and computing method of solid solution precipitation of ternary second-phase in steel, taking the Nb-V-Ti microalloying carbonitride as an example, and introduced its engineering application in the development of Ti-bearing carbonized gear steel product.

本文以铌、钒、钛的微合金碳氮化物为例讨论了钢中三元第二相平衡固溶的热力学模型与计算方法及其在含钛渗碳齿轮钢产品开发中的应用。

The results show that carbonitride of V dissolve in large quantities at the heating-up temperature range of 860~900℃, and the carbonitride of Ti dissolve gradually over 900℃; the precipitated phase increase gradually and the size decrease with the gradual decrease of c.

针对V-Ti微合金钢，采用透射电镜分析了不同加热温度下微合金碳氮化物的溶解，未形变与形变奥氏体在不同冷却温度下碳氮化物的析出。

The reason for the fail of carbon nitride synthesis was analysed and relevant graphitoid carbon nitride and unformed carbon nitride s were introduced in the article.

分析了妨碍碳氮化物合成成功的原因，对相关的类石墨的碳氮化合物和无定型的碳氮化合物作了介绍。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。