一重技术
一重技術
일중기술
CFHI TECHNOLOGY
2014年
4期
18-21
,共4页
压力容器模拟钢%等温热时效%维氏硬度%Cu沉淀
壓力容器模擬鋼%等溫熱時效%維氏硬度%Cu沉澱
압력용기모의강%등온열시효%유씨경도%Cu침정
reactor pressure vessel model steel%isothermal aging%Vickers hardness%copper precipitation
研究反应堆压力容器模拟钢（Cu含量大于0.25%wt）的等温热时效强化行为。模拟钢900℃固溶处理后水淬保留的过饱和Cu原子在时效过程中析出长大，使得材料出现强化。试验选取3个平行试样用30 kg载荷进行维氏硬度测量，每个样品测量五次，取平均值作为测量结果。结果表明，试样硬度随时效时间增加发生变化。在此基础上分析了时效强化曲线并得到了合金元素Ni对时效硬化峰时间及峰形的影响。
研究反應堆壓力容器模擬鋼（Cu含量大于0.25%wt）的等溫熱時效彊化行為。模擬鋼900℃固溶處理後水淬保留的過飽和Cu原子在時效過程中析齣長大，使得材料齣現彊化。試驗選取3箇平行試樣用30 kg載荷進行維氏硬度測量，每箇樣品測量五次，取平均值作為測量結果。結果錶明，試樣硬度隨時效時間增加髮生變化。在此基礎上分析瞭時效彊化麯線併得到瞭閤金元素Ni對時效硬化峰時間及峰形的影響。
연구반응퇴압력용기모의강（Cu함량대우0.25%wt）적등온열시효강화행위。모의강900℃고용처리후수쉬보류적과포화Cu원자재시효과정중석출장대，사득재료출현강화。시험선취3개평행시양용30 kg재하진행유씨경도측량，매개양품측량오차，취평균치작위측량결과。결과표명，시양경도수시효시간증가발생변화。재차기출상분석료시효강화곡선병득도료합금원소Ni대시효경화봉시간급봉형적영향。
The paper studies the harding behaviour of reactor pressure vessel model steel (PRVS) (with Cu content higher than 0.25% wt) during the process of isothermal aging treatment. The supersaturated Cu atoms in PRVS that has been subject to 900℃solution treatment and water quenching treatment precipitates and grows during the aging treatment, which makes PRVS hardened. A Vicker hardness test with 30 kg load is performed on three specimens and 5 measurements are taken on each specimen. The average value of those measurements is as test result. The test result shows the harness of test specimens changes with the increasing of aging time. Based on this, the effect of nickel element on the peak-aging time and the shape of aging hardening curve are obtained.
