CAJ | 학술논문

河北兴泰发电有限责任公司9号炉运行累计114890h，对仍在该部位运行的再热器T91钢管进行寿命评估，基于化学分析、短时拉伸试验（常温、高温）、硬度试验、金相分析、碳化物结构分析、透射电镜检查等试验基础上进行持久强度试验，采用持久强度等温线外推法校核，其剩余寿命仍然大于10万h。
하북흥태발전유한책임공사9호로운행루계114890h，대잉재해부위운행적재열기T91강관진행수명평고，기우화학분석、단시랍신시험（상온、고온）、경도시험、금상분석、탄화물결구분석、투사전경검사등시험기출상진행지구강도시험，채용지구강도등온선외추법교핵，기잉여수명잉연대우10만h。
Life evaluation of T91 steel of high temperature reheater of No.3 boiler in Xingtai Power Plant Co Lt can be done after operating 114890 hours. Based on chemistry analysis, tensile test(normal, high temperature ), hardness test, metallographic analysis, carbide analysis, TEM and other methods, The high temperature reheater was tested of rupture strength and analyzed by the sustained strength life extrapolation method. Results show that residual service life are longer than 100000h.