Vol.18 No.6 苗柏和等：回火对冷轧A1S130I不锈钢力学性能的影响 527· 6 Hull F C.Delta Ferrite and Martensite Formation in Stainless Steels.Welding Research Supplement, 1973(May):193 7 Metals Handbook,Vol 7.8th Edition.ASM Handbook Committee,1972.131 ~137 8 Cahn R W主编.物理冶金学（中册）.北京：科学出版社，1970.639~642 9哈宽富编著.金属力学性质的微观理论.北京：科学出版社，1983.280 Effect of Tempering at 380 C on Mechanical Properties of Cold Rolled 17-7 Stainless Steel Miao Baihe)Zhang Maocai Shi Shifeng Zhang Qingquan Wu Xuefeng Fang Chufu) 1)Department of Material Science and Engineering.USTB,Beijing 100083 2)State Key Lab for Advanced Metals and Materials,USTB 3)Research Institute of Metallurgy Shougang Co ABSTRACT The microstructure and martensite fraction of 17-7 stainless steels,as cold rolled,tempered 2 h at 380 C and AISI301 stainless steel produced in Franc are examined respectively by magnetization in conjunction with transmission electron microscopy and X-ray techniques.The effect of the cold rolling and tempering on the mechanical properies of AISI301 stainless steel is discussed based on the experimental results. KEY WORDS AISI301 stainless steel,cold rolling,tempering,martensite transformation 米水常常**米米米米米*米米米米米米米*米米米米水米米来米米*米米米米米米米米米米米米米米常米***米米 (上接511页) Solidification Characters of ZA27 Cast Alloy Zhai Oijie Wang Qinpu Department of Metallurgy,USTB,Beijing 100083,PRC ABSTRACT The effect of trace elements in ZA27 cast alloy,such as Mg,Cu,RE,Ti and thickness of.castings,pouring temperature,modification on the solidification characters of ZA27 cast alloy were studied.The experimental results show that the thickness of cast- ings is the primary factor which affecting the solidification of ZA27 alloy.The solidifica- tion characters of ZA27 alloy can be improved by the suitable addition of Ti,and can also be changed with the change of pouring temperature and modification.According to the experimental results,the suitable parameters of technology are recommended. KEY WORDS ZA27 aolloy,solidification character,technology parametero V l . 1 0 8 N . 苗柏 和等 6 回火对冷轧 A : S 3 I I 不 锈钢力学性能的影 响 1 0 . 2 5 7 . 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T h e e x P e r im e n t a l r e s u lt s s h o w ht a t ht e ht i e kn e s s o f e a s t - in g s 1 5 ht e P r im a yr af e t o r w h i e h a fe e t i n g t h e s o li d iif e a ti o n o f Z A 2 7 a ll o y . Th e s o li d iif e a - ti o n e h a r a e t e r s o f Z A 2 7 a ll o y e an b e im P r o v e d b y ht e s u it a b l e a d d it i o n o f T i , a n d e a n a l s o b e e h a n g e d w i ht ht e e h an g e o f P o u r i n g t e m P e r a ut r e an d m o d iif e a t i o n . A e e o r d i n g t o ht e e x P e r im e n t a l r e s u lt s , th e s u i ta b l e P ar am e t e r s o f t e e h n o l o g y a r e r e e o m m e n d e d . K E Y W O R D S Z A 2 7 a o ll o y , s o li d iif e a t i o n e h a r a e t e r , t e e h n o l o g y P a r a m e t号r