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金属学报  1965, Vol. 8 Issue (3): 346-430    
  论文 本期目录 | 过刊浏览 |
铁-锰-铝奥氏体耐热钢的研究
张彦生;师昌绪;李有柯
AN INVESTIGATION ON AN AUSTENITIC Fe-Mn-Al HEAT-RESISTING STEEL
CHANG YEN-SHEN;SHIH CHANG-HSU;LI YOU-K'E
引用本文:

张彦生;师昌绪;李有柯. 铁-锰-铝奥氏体耐热钢的研究[J]. 金属学报, 1965, 8(3): 346-430.
, , . AN INVESTIGATION ON AN AUSTENITIC Fe-Mn-Al HEAT-RESISTING STEEL[J]. Acta Metall Sin, 1965, 8(3): 346-430.

全文: PDF(2345 KB)  
摘要: 根据本文作者以前的结果,对一种成分为29.4%Mn,3.8%Al,1.9%Mo,0.5%V,0.4%W,0.015%B,0.03%N,0.1%C的奥氏体耐热钢进行了下述研究: (1)热加工塑性:Fe-Mn-Al奥氏体耐热钢的高温可塑性类似于1Cr18Ni9Ti。 (2)持久强度:在600—700℃,数千小时的持久强度接近于ЭИ257T(14%Cr,14%Ni,2.15%W,0.5%Mo,0.5%Ti,0.1%C)的水平。 (3)时效过程的变化:观察并测定了在600—750℃,保温长达9500小时时效过程中的金相组织变化、沉淀相的类型、冲击功及硬度的变化。在时效过程中顺序沉淀出V_4C_3,M_6C及Laves相,时效变脆的倾向不很大。 各种实验结果表明,为节约铬与镍,Fe-Mn-Al奥氏体耐热钢有研究发展的前途,但最大弱点是抗电化学腐蚀能力差,这有待进一步寻求解决途径。 同时,指出由Fe-Mn-Al系发展出在630℃左右使用的奥氏体耐热钢是可能的。
Abstract:On the basis of our previous investigation, an Fe-Mn-Al steel containing 29.4%Mn, 3.8% Al, 1.9% Mo, 0.5% V, 0.4% W, 0.015% B, 0.03% N and 0.1% C hasbeen studied systematically. Its workability is similar to that of 1Cr_(18)Ni_9Ti. The stress-rupture properties arecomparable to those of high Cr-Ni austenitic steels, such as ЭИ257Т (14% Cr, 14% Ni,2.15% W, 0.5% Mo, 0.5% Ti, 0.1% C) at 600°and 650℃ for several thousandhours. On ageing at temperatures from 600°to 750℃ for periods up to 9500 hours, ac-companied by changes in hardness, the following phases appeared with increasing ageingtime and temperature: γ V_4C_3, M_6C and AB_2 (Laves phase). The impact value de-creased from about 37 to 10 kg·m/cm~2 after 9500 hours at 650°and 700℃.
收稿日期: 1965-03-18     
[1] 张彦生、师昌绪:金属学报,1964,7,285.
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[5] Beattie, H. J., VerSnyder, F. L.: Trans. Am. Soc. Metals, 1953, 45, 397.
[6] 拉施柯,H.Ф.著,钢铁研究院译:奥氏体钢的相分析及其组织,(冶金工业出版社,1959年),198页.
[7] 李有柯、谢仰华、郭蕴宜等:铬锰氮奥氏体耐热钢的研究,待发表.
[8] 郭蕴宜:铬锰氮奥氏体耐热钢的时效脆性,待发表.
[9] Gemmill, M. G., Hughes, H., Murray, J. D. et al.: J. Iron Steel Inst. (London), 1956, 84, 122.
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