热等静压对第二代DD6单晶高温合金高温高周疲劳性能的影响
Effect of Hot Isostatic Pressing on High-Temperature High Cycle Fatigue Properties of a Second Generation Single Crystal Superalloy DD6
摘 要
对第二代DD6单晶高温合金进行了标准热处理和热等静压处理+标准热处理, 然后再在850 ℃和300~850 MPa应力条件下进行高温高周疲劳试验, 观察了不同处理状态合金的显微组织, 分析了热等静压处理对合金显微组织和高温高周疲劳性能的影响。结果表明: 与仅进行标准热处理的合金相比, 增加热等静压处理后, 合金内部显微疏松的数量和尺寸显著降低, 其体积分数从0.31%降低到0.04%, 合金的高周疲劳强度由331 MPa提高至433 MPa, 高周疲劳寿命也显著提高。
单晶高温合金
显微疏松
高周疲劳性能
hot isostatic pressing(HIP)
single crystal superalloy
porosity
high cycle fatigue property
Abstract
Standard heat treatment and hot isostatic pressing(HIP) followed by standard heat treatment were conducted on a second generation single crystalsuperalloy DD6, and then high-temperature high cycle fatigue (HCF) test were carried out under the conditions of 850 ℃ and stress between 300 MPa and 850 MPa. The microstructure of the alloy in different states was observed, and the effects of HIP on microstructure and HCF properties of the alloy were investigated. The results show that, compared with the alloy only treated with standard heat treatment, the number and size of porosity in the alloy treated by HIP decreased obviously, the volume fraction of porosity deceased from 0.31% to 0.04%; its high cycle fatigue strengths increased from 331 MPa to 433 MPa, and its high cycle fatigue life raised sharply.
中图分类号 TG132.3 DOI 10.11973/jxgccl201607012
所属栏目 试验研究
基金项目 国家重点基础研究发展计划资助项目(2010CB631201)
收稿日期 2015/9/25
修改稿日期 2016/5/30
网络出版日期
作者单位点击查看
备注骆宇时(1978-), 男, 四川内江人, 高级工程师, 博士。
引用该论文: LUO Yu-shi,GUO Hui-ming,ZHAO Yun-song,ZHANG Jian. Effect of Hot Isostatic Pressing on High-Temperature High Cycle Fatigue Properties of a Second Generation Single Crystal Superalloy DD6[J]. Materials for mechancial engineering, 2016, 40(7): 51～55
骆宇时,郭会明,赵云松,张剑. 热等静压对第二代DD6单晶高温合金高温高周疲劳性能的影响[J]. 机械工程材料, 2016, 40(7): 51～55
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参考文献
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【17】韩梅, 骆宇时, 等. 热等静压对DD3单晶高温合金组织和性能的影响［J］. 材料工程, 2008 (8): 40-43.
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【20】ZHOU Y, ZHANG Z, ZHAO Z H, et al. Effect of HIP temperature on the microstructural evolution and property restoration of a Ni-based superalloy［J］. Journal of Materials Engineering and Performance, 2012, 22(1): 215-222.
【21】SHI Z X, WANG X G, LIU S Z, et al. Low cycle fatigue properties and microstructure evolution at 760℃ of a single crystal superalloy［J］. Progress in Natural Science Materials International, 2015, 25: 78-83.
【22】韩国明, 张振兴, 李金国, 等. DD98M镍基单晶高温合金900 ℃高周疲劳行为［J］. 金属学报, 2012, 48(2): 170-175.
【2】郭建亭. 高温合金材料学［M］. 北京: 科学出版社, 2008.
【3】杨素玲, 郑运荣. 电厂燃气涡轮用单晶高温合金的进展［J］. 机械工程材料, 2002, 26(4): 6-10.
【4】LI J R, ZHONG Z G, TANG D Z, et al. A low-cost second generation single crystal superalloy DD6［C］// Superalloys. ［S.l.］: ［s.n.］, 2000: 777-783.
【5】陈柏凡, 李辉. 一种第二代镍基单晶高温合金固溶时效处理工艺的确定［J］. 机械工程材料, 2013, 37(5): 18-25.
【6】VOLEK A, SINGER R F. Influence of solidification conditions on TCP phase formation, casting porosity and high temperature mechanical properties in a re-containing nickel-base superalloy with columnar grain structure［C］// Superalloys. ［S.l.］: ［s.n.］, 2004: 713-718.
【7】ROSKOSZ S, ADAMIEC J. Methodology of quantitative evaluation of porosity, dendrite arm spacing and grain size in directionally solidified blades made of CMSX-6 nickel alloy［J］. Materials Characterization, 2009, 60(10): 1120-1126.
【8】呼和. 镍基铸造高温合金的热等静压处理［J］. 金属学报, 2002, 38(11): 1199-1202.
【9】张剑, 赵云松, 贾玉亮, 等. 一种镍基单晶高温合金的热机械疲劳行为［J］. 机械工程材料, 2013, 35(8): 41-49.
【10】GAYDA J, DRSHFIELD R L, GABB T P. The effect of porosity and γ-γ′ eutectic content on the low cycyle fatigue behavior of hydrogen charged PWA 1480［J］. Scripta Metallurgica, 1991, 25(11): 2589-2594.
【11】CHEN Q Z, KONG Y H, JONES C N, et al. Porosity reduction by minor additions in RR2086 superalloy［J］. Scripta Materialia, 2004, 51(2): 155-160.
【12】赵云松, 张剑, 骆宇时, 等. Hf对第二代镍基单晶高温合金DD11高温低应力持久性能的影响［J］. 金属学报, 2015, 51(10): 1261-1272.
【13】赵乃仁, 金涛, 孙晓峰, 等. 抽拉速率对 SRR99 单晶高温合金组织和性能的影响［J］. 材料研究学报, 2009, 22(1): 46-52.
【14】BOCANEGRA-BERNAL M H. Hot isostatic pressing (HIP) technology and its applications to metals and ceramics［J］. Journal of Materials Science, 2004, 39(21): 6399-6420.
【15】ATKINSON H V, DAVIES S. Fundamental aspects of hot isostatic pressing: an overview［J］. Metallurgical and Materials Transactions A, 2000, 31(12): 2981-3000.
【16】FRITZEMEIER L G. The influence of high thermal gradient casting, hot isostatic pressing and alternate heat treatment on the structure and properties of a single crystal nickel base superalloy［C］//Superalloys. ［S.l.］: ［s.n.］, 1988: 265-274.
【17】韩梅, 骆宇时, 等. 热等静压对DD3单晶高温合金组织和性能的影响［J］. 材料工程, 2008 (8): 40-43.
【18】WASIELEWSKI G E, LINDBLAD N R.Elimination of casting defects using HIP［C］// Superalloys. ［S.l.］: ［s.n.］, 1972: 1-24.
【19】EPISHIN A, FEDELICH B, LINK T, et al. Pore annihilation in a single-crystal nickel-base superalloy during hot isostatic pressing: experiment and modelling［J］. Materials Science& Engineering A, 2013, 58(6): 342-349.
【20】ZHOU Y, ZHANG Z, ZHAO Z H, et al. Effect of HIP temperature on the microstructural evolution and property restoration of a Ni-based superalloy［J］. Journal of Materials Engineering and Performance, 2012, 22(1): 215-222.
【21】SHI Z X, WANG X G, LIU S Z, et al. Low cycle fatigue properties and microstructure evolution at 760℃ of a single crystal superalloy［J］. Progress in Natural Science Materials International, 2015, 25: 78-83.
【22】韩国明, 张振兴, 李金国, 等. DD98M镍基单晶高温合金900 ℃高周疲劳行为［J］. 金属学报, 2012, 48(2): 170-175.
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