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国产超临界汽轮机转子钢低周疲劳特性的试验研究
  • ISSN号：1674-7607
  • 期刊名称：《动力工程学报》
  • 时间：0
  • 分类：TG135[金属学及工艺—合金;一般工业技术—材料科学与工程;金属学及工艺—金属学]
  • 作者机构：[1]华中科技大学能源与动力工程学院,武汉430074, [2]中国轻工业长沙工程有限公司,长沙410114
  • 相关基金：国家高技术研究发展计划（863计划）资助项目（2008AA042404）;国家重点基础研究发展计划（973计划）资助项目（20098CB219803）;国家自然科学基金资助项目（50505013,51021065,50975105）
作者： 吕方明[1], 王坤[1], 黄树红[1], 欧阳坤贝[2]
关键词： 超临界机组, 汽轮机转子, 低周疲劳, 静拉伸性能, 高温, 硬度, supercritical power unit, steam turbine rotor, low cycle fatigue, static tensile property, high temperature , hardness
中文摘要：

为了解国产超临界汽轮机转子钢的静拉伸性能和低周疲劳特性，在540℃和593℃温度下对5种国产超临界汽轮机转子钢进行了静拉伸试验和总应变控制低周疲劳试验，给出了汽轮机转子钢的静拉伸力学性能参数，并拟合出其应变一疲劳寿命关系式．结果表明：在经过540℃和593℃低周疲劳试验后，5种转子钢的维氏硬度分别下降了约15和20，试验用超，临界汽轮机转子钢均具有明显的循环软化特性．

英文摘要：

To study the static tension and low-cycle fatigue properties of domestic supercritical turbine rotor steels, monotonic tensile tests and total strain-controlled low cycle fatigue tests were carried out to 5 domestic supercritical turbine rotor steels respectively at 540 ℃ and 593 ℃, after which corresponding mechanical properties and strain-life formulas were obtained based on the tests data. Results show that the Vickers hardness of the five rotor steels has reduced by about 15 at 540 ℃ and 20 at 593 ℃, indicating an obvious cyclic softening behavior.

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期刊信息
  • 《动力工程学报》
  • 中国科技核心期刊
  • 主管单位:上海发电设备成套设计研究院
  • 主办单位:上海上发院发电成套设备成套设备工程有限公司 中国动力工程学会
  • 主编：严宏强
  • 地址：上海闵行剑川路1115号
  • 邮编：200240
  • 邮箱：DONG@chinajournal.net.cn
  • 电话：021-64358710-609
  • 国际标准刊号：ISSN：1674-7607
  • 国内统一刊号：ISSN：31-2041/TK
  • 邮发代号:4-301
  • 获奖情况:
  • 2000年获《CAJ-CD规范》执行优秀奖
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,荷兰文摘与引文数据库,美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）
  • 被引量:3107