金属学报  1979, Vol. 15 Issue (4): 446-576

论文 本期目录 | 过刊浏览 |

气瓶钢中白点焊合的研究

陈廉;刘民治;张维斗;刘盛炎;尹万全;胡魁毅;孙继红

THE IMMUNIZATION OF FLAKES IN A MEDIUM CARBON MANGANESE STEEL BY HOT WORKING

Chen Lian;Liu Minzhi(Liu Min-chih);Zhang Weidou;Liu Shengyen;Yin Wanquan;Hu Kuiyi;Sun Jihong

陈廉;刘民治;张维斗;刘盛炎;尹万全;胡魁毅;孙继红. 气瓶钢中白点焊合的研究[J]. 金属学报, 1979, 15(4): 446-576.
, , , , , , . THE IMMUNIZATION OF FLAKES IN A MEDIUM CARBON MANGANESE STEEL BY HOT WORKING[J]. Acta Metall Sin, 1979, 15(4): 446-576.

摘要 参考文献 相关文章 Metrics 全文: PDF(4563 KB)   摘要: 42Mn2气瓶钢中存在有内部白点(即不露头白点)和露头白点,经正常冲压和拔伸制成气瓶后,进行解剖,用低倍、断口、超声波、金相以及扫描电子显微镜观条,证实内部白点可以焊合。而露头白点因表面在高温热成形过程中被氧化需要较大的变形才能焊合完全。 强度考核证明,这类气瓶的静压爆破强度(在550—630kg/cm~2)符合正常要求,在10?150 kg/cm~2循环应力下,整体疲劳次数达到30,000—60,000次,声发射仪跟踪监听,未发现有疲劳裂纹产生和扩展的信号。 Abstract：42Mn2 steel cylinders processed by hot extrusion and drawing of flake-con-taining billets have been examined by SEM and by other methods to ascertain theimmunization of flakes in the final products. All internal flakes in the billets werecompletely healed after processing into cylinders, with the exception of those origi-nally exposed to the surface of the billet owing to oxidation. From practical appli-cation point of view, however, little difference in properties has been found betweencylinders completely or incompletely immunized from flakes. Thus, in the fatiguetest of the cylinders within cyclic stress ranges of 10?150 kg/cm~2, no signalsinduced by the formation and propagation of cracks were detected by acoustic emis-sion till 30,000-60,000 cycles. Likewise, the static bursting test of all cylindersalso met the standard set up by the users. 收稿日期: 1979-04-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 陈廉 刘民治 张维斗 刘盛炎 尹万全 胡魁毅 孙继红 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1979/V15/I4/446 [1] Дубовой.В.Я.钢中的白点,杨惠毕译,重工业出版社,1954年. [2] Koehler, E. L. and Wischar, H. B., ASM Trans. Quart., 40 (1948) , 513． [3] (1958) , № 1, 67． [4] Склюев,П.В.,大型锻件中的氢和白点,陈洵,曾祖良,张同和合译,机械工业出版社,1966年,p.98． [5] Hewitt, J. and Murray, J. D., Metal. Constr. Brit. Weld. J., 1 (1969) , № 2, 24． [6] 陈廉,徐永波,尹万全,金属学报,14(1978) ,253． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed