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| ON THE RELATIONSHIP BETWEEN RETURN AUSTENITE AND TOUGHNESS FOR Ni9 STEEL AT CRYOGENIC TEMPERATURES |
| ZHANG Futian; WANG Jingyun; GUO Yunyi (Institute of Metal Research; Academia Sinica; Shenyang)(Manuscript received 6 September; 1983; revised manuscript 20 February; 1984) |
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Cite this article:
ZHANG Futian; WANG Jingyun; GUO Yunyi (Institute of Metal Research; Academia Sinica; Shenyang)(Manuscript received 6 September; 1983; revised manuscript 20 February; 1984). ON THE RELATIONSHIP BETWEEN RETURN AUSTENITE AND TOUGHNESS FOR Ni9 STEEL AT CRYOGENIC TEMPERATURES. Acta Metall Sin, 1984, 20(6): 405-490.
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Abstract The toughness of commercial 9 wt-% Ni steel after an intercritical heat treatment (IHT) has been compared with that of the conventionally heat treated (CHT)steel. The toughness of 9 wt-% Ni steel at —196℃ is virtually improved by IHT, and the final value is independent on the prior austenite grain size. It appears that of the benefit of IHT comes mostly from the return austenite; besides it also increases the amount of return austenite which is stable at —196℃ and distributed uniformly over all kinds of boundaries, especially lath martensite boundary. In this case, two types of austenite have been found: the austenite film on boundaries of martensite lath and the irregular blocks particles on prior austenite boundaries, sub-boundaries and so on.
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Received: 18 June 1984
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1 Bergstroem, Y.; Josefsson, A., Scand. H. Met., 3(1974) , 259．
2 Marschell, C. W.; Hehemann, R. F.; Thoiano, A. R., ASM Trans. Q., 55 (1962) , 435．
3 Jin, S.; Hwang, S. K.; Morris, J. W., Jr., Metall. Trans., 6A (1975) , 1569．
4 Strife, J. R.; Passoja, D. E., Metall. Trans., 11A (1980) , 1341．
5 矢野清之助;桜井浩;三村宏;脅田信雄;小沢勉;青木宏一,铁钢,59(1973) ,762．
6 Ucisik, A. H.; McMahon, C. J., Jr.; Feng, H. C., Metall. Trans., 9A(1978) , 321．
7 Nagashima, S., 鋼强韧性,(Toward Improved Ductility and Toughness, Kyoto Int. Conf. Hall, Oct. 1971) ,日本鉄鋼学会,日本金属学会编,Cimax Molybdenum Development co(Japan) Ltd, 1971, p. 353．
8 大岡耕之;三村宏;矢野清之助;杉野和男;樋泉武,日本金属学会誌,30(1966) ,442．
9 Jin, S.; Syn, C. K.; Morris, J. W., Jr., Metall. Trans., 7A (1976) , 1827．
10 Krauss, G., Jr.; Cohen, M., Trans. Metall. Soc. AIME, 224 (1962) , 1212．
11 Kessler, H.; Pitseh, W., Acta Metall., 15(1967) , 401．
12 Rohde, R. W.; Graham, R. A., Trans. Metall. Soc. AIME, 245 (1969) , 2441．
13 Rohde, R. W.; Alfright, C. E., Scr. Metall., 5 (1971) , 151．
14 桜井浩,金属材料,3(1975) ,45．
15 Durlu, T. N.; Christian, J. W., Met. Sci., 8 (1974) , 1．
16 Matsuda, S.; Ohamura, Y., Trans. Iron Steel Inst. Jpn, 14 (1974) , 363, 444．
17 本間亮介;鉄鋼,59(1972) ,119．
18 陈继志;程飴萱;金属热处理学报,1(1980) ,26．
19 Speich, G. R.; Warliment, H., Ironmalcing Steelmaking, 7 (1980) , 385．
20 Thomas, G., Metall. Trans., 9A (1978) , 439．
21 Syn, C. K.; Fultz, B.; Morris, J. W., Metall. Trans., 9A (1978) , 1635．
22． Kim, K. J.; Schwartz, L. H., International Conference ori the Application of the Mossbauer Effect, J. Phys. (Paris), Colloque C6, Supplement 37 (1976) , No. 12, C6-405． |
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