Effect of Vanadium on Precipitation Behavior in Bainite Transformation of V-Mo-N Microalloyed Steel
-
摘要: 通过热模拟和透射电镜(TEM)等研究方法对三种不同V含量的V-Mo-N微合金钢在贝氏体铁素体基体中析出粒子分布、形貌和尺寸进行了观察和分析。结果表明:在V-Mo-N微合金钢中,当Mo的添加量较低时,析出粒子为V(C,N),Mo元素全部固溶于基体中起到固溶强化作用,并不会形成Mo的碳氮化物析出。随着V含量的提高,组织中的贝氏体板条逐渐变细并向粒状贝氏体转变。V含量在0.05%~0.16%时,试验钢析出量随V含量增加而增加,同时,钢的硬度也增加。
-
关键词:
- V-Mo-N微合金钢 /
- V含量 /
- 析出行为 /
- 贝氏体
Abstract: The distribution,morphology and size of precipitation in V-Mo-N microalloyed steel with various V content had been studied via thermal simulation and TEM observation. Hardness test was also carried out.The result shows that the second phase seems to be V(C,N) without Mo which is almost solute in the matrix. As the vanadium addition increases,the structure morphology transfers from lath bainite into granular bainite,at the same time the amount of vanadium precipitate and hardness of the steels increase.-
Key words:
- microalloyed steel /
- vanadium /
- precipitation behavior /
- bainite
-
计量
- 文章访问数: 140
- HTML全文浏览量: 34
- PDF下载量: 2
- 被引次数: 0
下载: