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[1]喻九阳,王明伍,张红才,等.25Cr2MoVA和15CrMo钢的高温蠕变特性[J].武汉工程大学学报,2014,(05):48-52,58.[doi:103969/jissn16742869201405011]
　YU Jiu yang,WANG Ming wu,ZHANG Hong cai,et al.Creep behavior of 25Cr2MoVA steel and 15CrMo steel[J].Journal of Wuhan Institute of Technology,2014,(05):48-52,58.[doi:103969/jissn16742869201405011]
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25Cr2MoVA和15CrMo钢的高温蠕变特性(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2014年05期
页码:
48-52,58
栏目:
机电与信息工程
出版日期:
2014-05-31

文章信息/Info

Title:
Creep behavior of 25Cr2MoVA steel and 15CrMo steel
文章编号:
16742869(2014)05004805
作者:
喻九阳1; 王明伍1; 张红才2; 郑小涛1; 桑聪1
1.武汉工程大学机电工程学院，湖北 武汉 430205；2.中石化湖北化肥分公司，湖北 枝江 443200
Author(s):
YU Jiuyang1; WANG Mingwu1; ZHANG Hongcai2; ZHENG Xiaotao1; SANG Cong1
1．School of Mechanical and Electrical Engineering,Wuhan Institute of Technology,Wuhan 430205,China；2．Hubei Chemical Fertilizer Branch Co.,SINOPEC.,Zhijiang 443200,China
关键词:
法兰连接系统; 拉伸; 蠕变
Keywords:
flange connection system; tension; creep
分类号:
TG111.8
DOI:
103969/jissn16742869201405011
文献标志码:
A
摘要:
应用RPL50高温电子蠕变疲劳试验机，在500 ℃的高温环境下随机对多根标准试样进行高温拉伸试验及长时间的单轴拉伸蠕变试验，并绘制两种材料的力-位移曲线及蠕变曲线.结果表明：25Cr2MoVA钢在500 ℃下的屈服应力约为310 MPa，15CrMo钢在500 ℃下的屈服应力约为292 MPa；在500 ℃高温300 MPa拉伸载荷作用下，25Cr2MoVA钢起初蠕变松弛明显，随后蠕变速率快速减小，直至恒定，符合蠕变规律，500 ℃高温及250 MPa载荷作用下，15CrMo钢也符合蠕变规律；拟合得到两种材料蠕变率表达式，其中25Cr2MoVA钢的线性回归值与实验值平均相对误差为2.01%，15CrMo钢的线性回归值与实验值平均相对误差为1.35%.
Abstract:
High temperature tensile test and creep test were randomly conducted on several standard samples at 500 ℃ using RPL50 testing machine of high temperature creep fatigue,then the forcedisplacement curves and the creep curves of 25Cr2MoVA steel and 15CrMo steel were drawn.The results show that the yield stress of 25Cr2MoVA is 310 MPa and the yield stress of 15CrMo is 292 MPa at 500 ℃;the strain of 25Cr2MoVA increases quickly,then strain velocity decreases rapidly to a constant quantity at 300 MPa and 500 ℃,which satisfies the creep law; the creep behavior of 15CrMo is found in accordance with creep law at 250 MPa and 500 ℃;the evolution equations of 25Cr2MoVA steel and 15CrMo steel are obtained by fitting the creep data,in which the average relative error between linear regression results and the experimental values of 25Cr2MoVA steel is 2.01%,and the average relative error between linear regression results and the experimental values of 15CrMo steel is 2.01%.

参考文献/References:

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相似文献/References:

[1]喻九阳,王明伍,郑小涛,等.高温法兰连接系统温度场的有限元分析[J].武汉工程大学学报,2014,(10):31.[doi:103969/jissn167428692014010007]
　YU Jiu yang,WANG Ming wu,ZHENG Xiao tao,et al.Temperature field analysis of flanged joints at high temperature based on finite element method[J].Journal of Wuhan Institute of Technology,2014,(05):31.[doi:103969/jissn167428692014010007]

备注/Memo

备注/Memo:
20140419基金项目：国家自然科学基金资助项目(51305310);武汉工程大学研究生教育创新基金项目(CX2013073)作者简介：喻九阳（1962），男，湖北武汉人，教授，硕士.研究方向：强化传热技术与设备、机电一体化技术和设备等.
更新日期/Last Update: 2014-06-15