| 焊接热影响区针状铁素体的形核长大及其对组织的细化作用 |
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| 引用本文： | 舒玮,王学敏,李书瑞,贺信莱.焊接热影响区针状铁素体的形核长大及其对组织的细化作用[J].金属学报,2011(4):435-441. |
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| 作者姓名： | 舒玮 王学敏 李书瑞 贺信莱 |
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| 作者单位： | 北京科技大学材料科学与工程学院;武汉钢铁(集团)公司; |
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| 基金项目： | 国家高技术研究发展计划资助项目2008AA03Z501~~ |
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| 摘 要： | 通过观察焊接热循环冷却过程中不同温度取样直接淬火后的微观组织,研究了焊接热影响区(HAZ)晶内针状铁素体(IAF)的形核长大过程,论证了针状铁素体分割原奥氏体晶粒及细化晶内组织的机理.Auger电子能谱(AES)证实,在TiOx-MnS型复合夹杂物边界附近存在贫Mn区,IAF易于在这类复合夹杂物上形核,单个复合夹杂物能...
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| 关 键 词： | 焊接热影响区(HAZ) 晶内针状铁素体(IAF) TiOx-MnS型复合夹杂 贫Mn区 细化晶粒 |
NUCLEATION AND GROWTH OF INTRAGRANULAR ACICULAR FERRITE AND ITS EFFECT ON GRAIN REFINEMENT OF THE HEAT-AFFECTED-ZONE |
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| SHU Wei,WANG Xuemin,LI Shurui,HE Xinlai School of Materials Science , Engineering,University of Science , Technology Beijing,Beijing Wuhan Iron , Steel Corp,Wuhan.NUCLEATION AND GROWTH OF INTRAGRANULAR ACICULAR FERRITE AND ITS EFFECT ON GRAIN REFINEMENT OF THE HEAT-AFFECTED-ZONE[J].Acta Metallurgica Sinica,2011(4):435-441. |
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| Authors: | SHU Wei WANG Xuemin LI Shurui HE Xinlai School of Materials Science Engineering University of Science Technology Beijing Beijing Wuhan Iron Steel Corp Wuhan |
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| Affiliation: | SHU Wei~(1)),WANG Xuemin~(1)),LI Shurui~(2)),HE Xinlai~(1)) 1) School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083 2) Wuhan Iron and Steel(Group) Corp,Wuhan 430080 |
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| Abstract: | Nucleation and growth of intragranular acicular ferrites(IAFs) in heat-affected-zone (HAZ) have been investigated by the observation of microstructures quenched at different temperatures during the cooling process of welding thermal cycle.It is proved that IAFs can divide the prior austenite grains and refine the intragranular microstructures.AES show that there is a Mn-depleted-zone near the interface of TiO_x-MnS complex inclusion.IAFs prefer to nucleate on the complex inclusion,and a single inclusion can... |
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| Keywords: | heat-affected-zone(HAZ) intragranular acicular ferrite(IAF) TiO_x-MnS complex inclusion Mn-depleted zone grain refinement |
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