- 0.015% C-1.5% Mn-0~0.5% Mo 강의 어닐링과정에서 미세조직과 집합조직의 변화
- ㆍ 저자명
- 정우창,Jeong. Woo Chang
- ㆍ 간행물명
- 열처리공학회지
- ㆍ 권/호정보
- 2011년|24권 5호|pp.251-261 (11 pages)
- ㆍ 발행정보
- 한국열처리공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The changes in microstructure and texture during annealing were examined in a series of 0.015% C-1.5% Mn cold-rolled sheet steels with 0~0.5% Mo. Orientation distribution function data were calculated from the (110), (200), (211) pole figures determined on the rolled plane of cold-rolled and annealed steel sheets. Regardless of Mo content and annealing conditions, martensite volume fraction was less than 1.0%, not affecting the texture evolution. Textural change at the cooling stage after heating at $820^{circ}C$ for 67 sec was not observed. Increasing the Mo content and annealing temperature markedly strengthened the intensities of ${gamma}$-fiber texture, resulting in the increase in $r_m$ value. The desirable texture evolution for deep drawability in the 0.5% Mo steel may be mainly caused by the grain refining effect of Mo carbide in the hot-rolled steel sheet.