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预冷淬火温度对T91铁素体耐热钢马氏体转变温度的影响 被引量：1

Effect of Precool-Quenching Temperature on Martensite Transformation Temperature of T91 Ferritic Heat Resistant Steel
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摘要 用DIL802高精度差分膨胀仪测量T91铁素体耐热钢马氏体转变过程中动力学信息,研究了预冷淬火温度（450～1100 ℃）对T91钢马氏体开始转变温度Ms的影响.结果表明,预冷淬火温度对T91钢的Ms有较大影响：随预冷淬火温度的提高Ms点首先呈上升趋势,并在950 ℃达到峰值,随后又下降.这种现象主要与＂碳原子气团＂和淬火空位的形成有关. The effects of precool-quenching temperature （450 - 1100℃ ） on martensite transformation starting temperature Ms of 391 ferritic heat-resistant steels were studied by DIL805A/D high-resolution differential dilatometer. The martensite transformation kinetic information was obtained from the recorded dilatometric curves. The results show that the precool-quenching temperature has a significant effect on the Ms temperature. At first Ms increases with increasing the precool-quenching temperature and reach the maximum value at 950℃, and then drop with further increasing precoolquenching temperature. The phenomenon is explained by the formation of carbon atomic gas group and quenching vacancy.
作者 宁保群 刘永长 高志眀 乔志霞 杨留栓
机构地区 天津大学材料科学与工程学院形状记忆材料教育部工程研究中心 平顶山工学院
出处 《金属热处理》 EI CAS CSCD 北大核心 2007年第9期33-35,共3页 Heat Treatment of Metals
基金 国家自然科学基金(50401003) 全国优秀博士论文作者专项基金(200335) 天津市自然科学基金(033608811) 河南省国际合作项目(0546620015)
关键词 预冷淬火温度 T91耐热钢 碳原子气团 淬火空位 precool-quenching temperature 391 heat resistant steel carbon atomic gas group quenching vacancy
分类号 TG142.7 [金属学及工艺—金属材料] TG151.1 [金属学及工艺—热处理]
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参考文献12

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二级参考文献3

共引文献39

同被引文献11

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金属热处理
2007年 第9期

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