超-超临界汽轮机转子材料T91钢的堆焊修复
Build-up Welding on T91 Steel Rotor of Ultra-supercritical Steam Turbine
摘 要
针对汽轮机转子在运行过程中发生的不正常磨损,采用2CrMo焊丝在选定的工艺参数下对汽轮机转子材料T91钢进行埋弧堆焊试验,研究了堆焊层化学成分对堆焊层组织和性能的影响.结果表明:对T91钢采用埋弧堆焊进行修复,其堆焊层综合力学性能均优于母材性能;同时发现当堆焊层铬含量在2%左右时,其抗磨损性能大大提高.
超-超临界汽轮机
T91钢
力学性能
build-up welding
ultra-supercritical steam turbine
T91 steel
mechanical property
Abstract
Submerged arc welding tests on T91 steel being used in the turbine rotor have been done to solve the problem of abnormal wear of the turbine rotor during operation.T91 steel was welded by the method of submerged arc build-up welding using 2CrMo wire and certain welding parameters.The effects of chemical composition on microstructure and performance of the overlay were studied through a series of mechanical performance tests.The results show that the mechanical properties of the overlay were superior to those of the base material by using the submerged arc build-up welding.And the wear resistance of the cladding layer was greatly improved when the component of Cr in the overlay was around 2%.
中图分类号 TG142.73 TG445
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收稿日期 2007/5/29
修改稿日期 2007/8/28
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备注张振宇(1983-),男,辽宁抚顺人,硕士研究生.
引用该论文: ZHANG Zhen-yu,LU Feng-gui,LU Bin-feng,YAO Shun. Build-up Welding on T91 Steel Rotor of Ultra-supercritical Steam Turbine[J]. Materials for mechancial engineering, 2008, 32(4): 10～13
张振宇,芦凤桂,陆斌锋,姚舜. 超-超临界汽轮机转子材料T91钢的堆焊修复[J]. 机械工程材料, 2008, 32(4): 10～13
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参考文献
【1】黄瓯,阳虹,彭泽瑛.我国超超临界汽轮机的发展方向[J].热力透平,2004,33(1):1-7.
【2】王则灵.T91/P91钢的焊接工艺[J].焊接,2005(12):29-33.
【3】任岚明,张志刚.T91/P91钢焊接性能分析[J].吉林电力,2002(8):54-56.
【2】王则灵.T91/P91钢的焊接工艺[J].焊接,2005(12):29-33.
【3】任岚明,张志刚.T91/P91钢焊接性能分析[J].吉林电力,2002(8):54-56.
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