查询词典 ferrite

The higher low temperature toughness of TTS is related to the formation of intragranular acicular ferrite in the CGHAZ.

线能量大于50 kJ/cm的大热输入条件下， Ti处理钢模拟粗晶区的低温韧性明显高于Al处理钢。

The effects of the size,distribution and chemical composition of inclusions on nucleation of acicular ferrite in deposited metal s of micro-alloyed steel were studied.

研究了微合金钢熔敷金属中夹杂物大小、尺寸分布和化学成分对针状铁素体形核的影响。

Fine acicular ferrite has good effect on both the strength and toughness of the steel.

细化的针状铁素体有效地改善了实验钢的强度及韧性。X80管线钢中存在两种典型的析出物，一种以Nb，Ti为主，尺寸较大（50--200nm）；另一种以NbC为主，尺寸细小（小于30nm）。

Low carbon and low alloy steel ; weld metal ; microstructure ; acicular ferrite

低碳低合金钢；焊缝金属；显微组织；针状铁素体

The results indicated that a high volumetric ratio of acicular ferrite in the simulated weld metal can be obtained in case the ratio of manganese and silicon is in a certain range.

结果表明，当Si、Mn比在一定的范围时，焊缝中将出现高比例的针状铁素体；且在大尺寸奥氏体晶粒中的非金属夹杂物上形核，高密度微小的夹杂物(1μm以下)的弥散分布对其形核更为有利。

The results show that the microstructure of the steel is mainly composed of granular bainite and lower bainite with a little acicular ferrite.

结果表明：X100管线钢主要由粒状贝氏体和板条贝氏体组成。

The plane strain compressive deformation experiments with various deformation amounts have been carried out on the grain boundary allotriomorphic ferrite/granular bainite F GBA/G Bduplex steel at temperatures above A r3 using Gleeble--1500 machine.

通过Gleeble--1500热力模拟实验机对仿晶界型铁素体/粒状贝氏体复相钢进行了A r3以上不同温度、不同形变量的平面应变压缩实验。

Based on allotropic transformation of ingot,the definition,strength performance and feature of the iron-carbon alloy basic phase(ferrite,austenite and carburizing) are analyzed on the iron-carbon alloy phase diagram .

在铁碳合金相图上直接从工业纯铁的同素异晶转变开始分析铁碳合金基本相铁素体、奥氏体和渗碳体的定义、力学性能、特点等，再用铁碳合金基本相和相图的规律来分析铁碳合金相图的点、线和各区域组织。

It is shown that the microstructure of ZJ510L is refined by increasing the rolling pass and the cooling rate. The size range of final ferrite is about 5-6μm. Precipitates consist mainly of Al2O3, MnS, AlN and lots of carbonide particles, and their size range is about 20-150nm. It is verified that ZJ510L steel possesses a good combination of strength and plasticity due to its fine microstructure and has excellent formability and notched bar impact strength.

通过光学显微镜、透射电镜和力学性能实验研究表明：ZJ510L显微组织随著轧制道次和冷却速度的增加而细化，最终铁素体晶粒尺寸约为5~6μm；析出的第二相粒子主要为Al2O3，MnS和AlN以及大量的碳化物，尺寸大多在20~150nm之间；成品板强度和延伸率较高，并具有良好的成形性能和低温冲击韧性。

The microstructure evolution, precipitation behavior of carbonitride as microalloying element and its effects on deformation induced ferrite transformation of mild steels with various Nb, V content were investigated on a Gleeble 1500 thermechanical simulator through multi-pass thermo-compression in the temperature range of 820~790℃ to simulate the finish rolling process of plates.

在Gleeble 1500热模拟机上，通过820~790℃温度范围内的多道次热压缩变形模拟了中厚板的精轧工艺，考察了不同铌、钒含量的低碳钢的组织演变过程、微合金元素的碳氮化物的析出行为和对形变诱导铁素体相变的影响。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。