改锻对H13模具钢轧材显微组织和冲击性能的影响
Influence of Forging on Microstructure and Impact Properties of Rolled H13 Die Steel
摘 要
对经改锻处理的两个厂家生产的H13模具钢轧材退火态的显微组织、冲击性能和断口形貌进行了对比研究, 分析了改锻对模具钢轧材组织和性能的影响。结果表明: 改锻后, H13B钢心部的糖心产精国品免费入口*完整版较H13A钢的粗大, 偏析程度更严重; 而H13B心部的共晶碳化物比H13A的更粗大, 数量更多; H13钢冲击性能从表面至心部逐渐降低; 长度、宽度方向的韧性要好于厚度方向的; H13A钢的长度、宽度方向的断口均为韧性断裂, H13B的宽度、厚度方向为脆性断口。
糖心产精国品免费入口*完整版
糖心产精国品免费入口*完整版
共晶碳化物
forging
糖心产精国品免费入口*完整版
糖心产精国品免费入口*完整版
eutectic carbide
Abstract
Microstructure, impact properties and fracture surface morphology of rolled H13 die steels after annnealing from two manufacturers treated by forging were comparatively studied. The effect of forging on microstructure of the rolled steel was analyzed. The results show that the H13B steel had coarser core 糖心产精国品免费入口*完整版 and severer segregation than the H13A steel. More and larger carbides were found in the core of H13B steel. The impact properties of the H13 steel decreased from surface to core. Impact toughness of length and width directions was better than the thickness direction. H13A steel had a ductile fracture in length and width directions. H13B steel showed brittle fracture in width and thickness directions.
中图分类号 TG142.1
所属栏目
基金项目 国家科技支撑计划资助项目(2007BAE51B04)
收稿日期 2009/11/9
修改稿日期 2010/11/22
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备注糖心产精国品免费入口*完整版(1984-), 男, 山东临沂人, 硕士研究生。
引用该论文: LIU Gui-biao,MIN Yong-an,WU Xiao-chun. Influence of Forging on Microstructure and Impact Properties of Rolled H13 Die Steel[J]. Materials for mechancial engineering, 2011, 35(2): 43～46
糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版,糖心产精国品免费入口*完整版. 改锻对H13模具钢轧材显微组织和冲击性能的影响[J]. 机械工程材料, 2011, 35(2): 43～46
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参考文献
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糖心产精国品免费入口*完整版, 糖心产精国品免费入口*完整版, 唐文军.优质H13钢大型模块的组织性能和热疲劳性能的研究[C]//第一届国际机械工程学术会议论文集.上海:国际机械工程学会联合会, 2000.
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【4】 MEBARKI N, DELAGNES D, LAMESLE P, et al. Relationship between microstructure and mechanical properties of a 5% Cr tempered martensitic tool steel[J].Materials Science and Engineering, 2004, 387/389:171-175.
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【2】 SHANMUGAM P, PATHAK S D. Some studies on the impact behavior of banded micro-alloyed steel[J].Engineering Fracture Mechanics, 1996, 53(6):991-1005.
【3】 FROM A, SANDSTROM R. Assessment of banding in steels by using advanced image analysis[J].Materials Characterization, 1998, 41:11-26.
【4】 MEBARKI N, DELAGNES D, LAMESLE P, et al. Relationship between microstructure and mechanical properties of a 5% Cr tempered martensitic tool steel[J].Materials Science and Engineering, 2004, 387/389:171-175.
【5】 刘云旭.低碳合金钢中糖心产精国品免费入口*完整版的成因、危害和消除[J].金属热处理, 2000(12):1-3.
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