03Cr16Mn14Mo2N奥氏体不锈钢的热疲劳行为
Thermal Fatigue Behavior of Austenitic Stainless Steel 03Cr16Mn14Mo2N
摘 要
对新型高氮低镍03Cr16Mn14Mo2N奥氏体不锈钢进行了不同上限温度下的热疲劳试验, 通过光学显微镜观察了热疲劳裂纹的萌生及扩展, 研究了其热疲劳行为。结果表明: 热疲劳裂纹的孕育期随上限温度的升高而缩短, 其扩展速率随着循环次数的增加呈先增大后减小的变化趋势; 随着上限温度的升高, 试验钢V型缺口处的裂纹扩展至0.5 mm时所需的热疲劳循环次数显著降低; 热疲劳裂纹在V型缺口处优先萌生, 随着热循环次数的增加, 晶界和孪晶界也成为裂纹源, 裂纹主要沿晶界扩展。
热疲劳裂纹
萌生
扩展
03Cr16Mn14Mo2N steel
thermal fatigue crack
initiation
propagation
Abstract
The thermal fatigue tests at different maximum cycle temperatures were carried out on a new-type high-nitrogen-low-nickel austenitic stainless steel 03Cr16Mn14Mo2N. Then the initiation and propagation of the thermal fatigue cracks were observed by optical microscope and the thermal fatigue behavior of the steel was also studied. The results show that the incubation period of the thermal fatigue crack was shortened with the increase of the maximum cycle temperature, and the growth rate first increased then decreased with the increase of cycling number. With the increase of the maximum temperature, the required thermal fatigue cycling number for which the crack at the V-shape notch of the tested steel propagated to the length of 0.5 mm was significantly reduced. The thermal fatigue cracks preferred to initiate at the V-shape notch, then with the increase of cycle number, the grain boundary and twin boundary became the source of crack initiation. The cracks propagated mainly along the grain boundary.
中图分类号 TG142.1 DOI 10.11973/jxgccl201612022
所属栏目 材料性能及应用
基金项目 国家高技术研究发展“863”计划项目(2012AA03A501); 江苏省产学研联合创新项目(BY2012169)
收稿日期 2015/3/21
修改稿日期 2016/10/17
网络出版日期
作者单位点击查看
备注徐桂芳(1966-), 女, 江苏镇江人, 教授, 博士。
引用该论文: XU Gui-fang,YAN Yu,XU Wen-hui,CHENG Xiao-nong,LI Dong-sheng. Thermal Fatigue Behavior of Austenitic Stainless Steel 03Cr16Mn14Mo2N[J]. Materials for mechancial engineering, 2016, 40(12): 99～102
徐桂芳,严羽,徐文慧,程晓农,李冬升. 03Cr16Mn14Mo2N奥氏体不锈钢的热疲劳行为[J]. 机械工程材料, 2016, 40(12): 99～102
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【2】MOHAMMADZADEH R, AKBARI A. Grain refinement of a nickel and manganese free austenitic stainless steel produced by pressurized solution nitriding［J］. Materials Characterization, 2014, 93: 119-128.
【3】袁丰伟, 郑海忠, 鲁世强, 等. 固溶和时效对0Cr21Ni6Mn9N含氮奥氏体不锈钢组织的影响［J］. 机械工程材料, 2014, 38(6): 31-34.
【4】HONG C M, SHI J, SHENG L Y, et al. Effects of hot-working parameters on microstructural evolution of high nitrogen austenitic stainless steel［J］. Materials & Design, 2011, 32(7): 3711-3717.
【5】任伊宾, 杨柯, 张炳春,等. 新型医用无镍不锈钢性能研究［J］. 功能材料, 2004, 35(21): 2351-2354.
【6】CHAI G C, PENG R L, JOHANSSON S. Fatigue behaviors in duplex stainless steel studied using in-situ SEM/EBSD method［J］. Procedia Materials Science, 2014, 3: 1748-1753.
【7】SAHU J K, KRUPP U, CHRIST H J. Fatigue crack initiation behavior in embrittled austenitic-ferritic stainless steel［J］. International Journal of Fatigue, 2012, 45: 8-14.
【8】KOLMORGEN R, BIERMANN H.Thermo-mechanical fatigue behaviour of a duplex stainless steel［J］. International Journal of Fatigue, 2012, 37: 86-91.
【9】FISSOLO A, AMIABLE S, ANCELET S, et al. Crack initiation under thermal fatigue: an overview of CEA experience. Part I: thermal fatigue appears to be more damaging than uniaxial isothermal fatigue［J］.International Journal of Fatigue, 2009, 31(3): 587-600.
【10】MAILLOT V, FISSOLO A, DEGALLAIX G, et al. Thermal fatigue crack networks parameters and stability: An experimental study［J］. International Journal of Solids and Structures, 2005, 42(2): 759-769.
【11】PAFFUMI E, NILSSON K F, TAYLOR N G. Simulation of thermal fatigue damage in a 316L model pipe component［J］. International Journal of Pressure Vessels and Piping, 2008, 85(11): 798-813.
【12】HSU J P, WANG D, KAHN H, et al. Fatigue crack growth in interstitially hardened AISI 316L stainless steel［J］. International Journal of Fatigue, 2013, 47: 100-105.
【13】RAMESH M, LEBER H J, JANSSENS K, et al. Thermomechanical and isothermal fatigue behavior of 347 and 316L austenitic stainless tube and pipe steels［J］. International Journal of Fatigue, 2011, 33(5): 683-691.
【14】惠瑞拓, 徐锦锋, 程武超,等. Cr26Ni14Nb2耐热不锈钢热疲劳性能研究［C］// 2013中国铸造活动周论文集.济南: 中国机械工程学会, 2013.
【15】徐桂芳, 王飞, 严羽,等. 新型低Ni不锈钢的组织与性能［J］. 金属热处理, 2014, 39(9): 92-95.
【16】张志坚, 司乃潮, 孙少纯,等. ZAlSi7Cu4在不同工艺条件下的热疲劳裂纹生长［J］. 中国有色金属学报, 2012, 22(11): 3038-3045.
【17】韩增祥. 温度对变形高温合金热疲劳性能的影响［J］. 燃气涡轮试验与研究, 2007, 20(4): 53-57.
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