Residual Stress Distribution of AISI403 Steel Power Station Turbine Blades after Shot Peening Treatment
摘 要
对AISI403钢电站汽轮机叶片进行了喷丸强化处理,利用X射线衍射技术研究了叶片表面喷丸残余应力分布的均匀性以及喷丸残余应力沿层深的分布。结果表明: 经过0.23 Amm喷丸强度喷丸处理后,AISI403钢叶片表面存在较大的残余压应力且分布均匀,应力分布标准偏差为15.4 MPa;喷丸后叶片残余压应力随层深的增加先增大后减小,表面残余应力为-635.8 MPa,在距表面25 μm处达到最大值-795.8 MPa。
Abstract
AISI403 steel power station turbine blades were treated by shot peening, and the surface residual stress distribution uniformity and residual stress distribution along depth of the blades were investigated by X-ray diffraction method. The results show that after 0.23 Amm shot peening intensity treatment, the residual stress was distributed equally on surface of the blades, and the stress distribution standard deviation was 15.4 MPa. Meanwhile, with the increase of depth from the blade surface, the residual stress of the blades increased firstly and then decreased, with the top surface residual stress of -635.8 MPa and the maximum residual stress of -795.8 MPa at the depth of 25 μm.
中图分类号 TG115.22+3 TG142.7
所属栏目 试验与研究
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收稿日期 2013/6/21
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备注冯昌瑾(1985-),男,助理工程师。
引用该论文: FENG Chang-jin. Residual Stress Distribution of AISI403 Steel Power Station Turbine Blades after Shot Peening Treatment[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2013, 49(8): 526~527
冯昌瑾. AISI403钢电站汽轮机叶片喷丸残余应力分布[J]. 理化检验-物理分册, 2013, 49(8): 526~527
被引情况:
【1】齐冀,肖峰,任学冲, "列车车轮辐板断裂原因分析",理化检验-物理分册 51, 79-82(2015)
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参考文献
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【5】WANG Zhou,JIANG Chuan-hai,GAN Xiao-yan,et al. Influence of shot peening on the fatigue life of laser hardened 17-4PH steel[J]. International Journal of Fatigue,2011,33:549-556.
【6】ZHAN Ke,JIANG Chuan-hai,JI Ning. Surface mechanical properties of S30432 austenitic steel after shot peening[J]. Applied Surface Science,2012,258:9559-9563.
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