This text described the means of apply the ICP plasm spectrum instrument analyze minim Nb in steel made sure that the interrelated condition of found the analytical method.
本文叙述了应用icp等离子光谱分析仪分析测定钢中微量铌，确定了创建该分析方法的相关条件。
This method is used in development of Nb-bearing steel and determination of controled sample of direct-reading spectrometer by furnace with fast and simple operation and accurate result.
方法被用于含铌品种钢的开发和炉前直读光谱控制样品的定值。该方法简单、快速，结果准确。
The optical microscope and SEM were applied to analyze the formation mechanism of transverse corner cracks of Nb microalloyed steel slab.
采用金相显微镜和扫描电镜分析了含铌微合金化钢铸坯角部横裂纹的形成原因。
The transverse cracking rate of the Nb containing slab is far greater than that of other steel grade since the former contains Nb and other cracking susceptive elements.
含铌钢由于含有铌等裂纹敏感性元素，其铸坯横裂纹发生率远远大于其它钢种。
The lamellar cracking was found at the specimen of HSLA Nb-V steel plate after tensile strength testing, then the fracture surface of the specimen was studied by SEM and EDAX.
针对高强度低合金铌钒钢板在拉伸试验后出现分层开裂的现象，采用SEM、EDAX进行微观分析，发现试样内部有大量夹杂物存在，这些夹杂物主要含有钙、氧、硫、锰等元素。
This paper describes comprehensively the hot ductility of Nb-bearing microalloyed steel in different temperature range.
综述了不同温度区间含铌微合金钢的高温塑性。
The effect of Nb on the as-cast microstructures and the prespheroidization at elevated temperature of eutectic carbides of M2 high speed steel was studied.
研究了铌对M2高速钢的共晶碳化物组织和共晶碳化物高温球化的影响。
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。
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。
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