http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
전자비임 용접된 300Grade 18% Ni 마르에이징강 박판의 이음강도에 미치는 열처리의 방향
정병호,김한군,강순배,김우열,박흥일 ( B . H . Jung,H . G . Kim,S . B . Kang,W . Y . Kim,H . I . Park ) 한국열처리공학회 1993 熱處理工學會誌 Vol.6 No.4
The effect and Condition of heat treatment on the tensile strength of welded joint was investigated in 300 grade 18% Ni-Co-Mo-Ti maraging steel sheets welded with electron beam. A good tensile strength of welded joint was obtained by following heat treatment cycle ; At 1100℃ the specimen was high temperature solution treated for 1 hour and then it was repeated solution treated at 900℃, 820℃ for 1hour respectively to recrystallize the coarsened γ grain. These heat treatment cycle was completed by an final aging heat treatment at 480℃ for 4 hour. Moreover, dissolution of dendrite, a significant decrease in seregation of Mo, Ti in weld metal were observed and also the coarsened γ grain formed at 1100℃, 1200℃ changed to fine grain due to the effect of recrystallization.