Behavior of V-Ti Elements in Warm-Rolled Transformation-Induced Plasticity Steel with Medium Manganese Content
Behavior of V-Ti Elements in Warm-Rolled Transformation-Induced Plasticity Steel with Medium Manganese Content
复制标题
中锰温轧相变诱发塑性钢中V-Ti元素的行为
DOI：
10.2355/isijinternational.isijint-2019-329
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发表时间：
2020-03
影响因子：
1.8
通讯作者：
Miaoyong Zhu
中科院分区：
文献类型：
--
作者：
Haicun Yu;Zhaozhen Cai;Kwangchol Ryom;Guiqin Fu;Miaoyong Zhu
为了揭示温轧相变诱发塑性(TRIP)钢中V-Ti析出行为的规律，设计了0.072V-0.051Ti钢(Bear-V-Ti钢)和0.001V-0.001Ti钢(Free-V-Ti钢)两个试件。通过对比分析，前者具有优良的力学性能组合，总延伸率(TE)为37%，极限抗拉强度(UTS)为935 Mpa，650℃退火后的UTS×TE为34 GPa.%。Bear-V-Ti钢优异的力学性能归因于在650°C以(V-Ti)C/N复合形式析出的粒子，这些粒子细化了Bear-V-Ti钢的晶粒，提高了抗拉强度。然而，应该注意的是，钢中析出物的两种作用与尺寸有关。对于尺寸在10-20 nm之间的样品，其作用主要是钉扎位错。这解释了降水强度的原因。当尺寸增加到20-60 nm时，主要作用是钉扎晶界，从而产生细小的晶体强化。这些结果为采用温轧工艺生产中锰钢提供了有用的数据。
To reveal the law governing V-Ti precipitation behavior in warm-rolled transformation-induced plasticity (TRIP) steel, two steel samples including 0.072V-0.051Ti steel (Bear-V-Ti steel) and 0.001V-0.001Ti steel (Free-V-Ti steel) are designed. Based on a comparative analysis, the former has an excellent combination of mechanical properties including a total elongation (TE) of 37%, ultimate tensile strength (UTS) of 935 MPa, and UTS×TE of 34 GPa·% after annealing at a temperature of 650°C. The superior mechanical properties are attributable to particles that precipitate in a composite form of (V-Ti)C/N at 650°C. These particles can refine the grains and improve the tensile strength of Bear-V-Ti steel. However, it should be noted that the two roles of precipitates in steel are size dependent. For sizes between 10–20 nm, the role mainly entails pinning the dislocation. This accounts for the precipitation strength. As the size increases to 20–60 nm, the role mainly involves pinning of the grain boundary, which leads to fine crystal reinforcement. These results provide useful data for the production of medium manganese steel using the warmrolled process.
影响因子：
9.4
作者：
van Dijk, NH;Butt, AM;van der Zwaag, S
通讯作者：
van der Zwaag, S