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金属学报  1980, Vol. 16 Issue (1): 30-129    
  论文 本期目录 | 过刊浏览 |
碳和硼对一种35Ni15Cr型铁基高温合金力学性能和组织的影响
郭建亭
中国科学院金属研究所
EFFECT OF CARBON AND BORON ON MECHANICAL PROPERTIES AND MICROSTRUCTURE OF AN IRON BASE SUPERALLOY
Guo Jianting Institute of Metal Research; Academia Sinica
引用本文:

郭建亭. 碳和硼对一种35Ni15Cr型铁基高温合金力学性能和组织的影响[J]. 金属学报, 1980, 16(1): 30-129.
. EFFECT OF CARBON AND BORON ON MECHANICAL PROPERTIES AND MICROSTRUCTURE OF AN IRON BASE SUPERALLOY[J]. Acta Metall Sin, 1980, 16(1): 30-129.

全文: PDF(1447 KB)  
摘要: 本文系统地研究碳和硼对650℃和750℃持久性能、室温和650℃瞬时性能的影响.碳和硼对持久性能的影响最明显,碳含量为0.03—0.05%,硼含量为0.006%左右,持久时间达到峰值.但它们不影响缺口敏感性. 硼含量增加,降低出现硼化物共晶的温度.硼化物共晶的数量随硼含量和固溶处理温度的提高而增多.硼化物共晶的少量存在对室温瞬时性能影响不大,但显著降低持久时间.
Abstract:The effect of carbon and boron on the stress rupture properties at 600 and750℃ as well as on the tensile properties at room temperature and 650℃ of a35Ni15Cr type iron base alloy has been investigated. Both carbon and boronseemed to be markedly influential in the stress rupture life of the alloy whichreached its peak value with 0.03--0.05%C and about 0.006% B. However, thenotched-rupture sensitivity was hardly affected. The increment of boron content maycause lowering the eutectic temperature of boron-γ phase. The amount of borideeutectic increases with the increase of boron content and the solution treatmenttemperature. Minute boron-γ phase eutectic less affected the room temperaturetensile properties, but markedly shortened the rupture life.
收稿日期: 1980-01-18     
[1] 郭建亭,朱耀宵,师昌绪,金属学报,10(1974) ,74.
[2] 铁基高温合金研究组,金属学报,14(1978) ,227.
[3] 铁基高温合金研究组,金属学报,14(1978) ,348.
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