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金属学报  1986, Vol. 22 Issue (6): 86-88    
  论文 本期目录 | 过刊浏览 |
磷含量对Cr-Mn-Si钢珠光体、贝氏体组织冲击韧性及断裂形态的影响
朱勋;李立丹;王聚才
河北机电学院;河北机电学院;国营太行机械厂
INFLUENCE OF P ON FRACTURE MORPHOLOGY OF Cr-Mn-Si STEEL WITH PEARLITE, BAINITE AND MARTENSITE STRUCTURES
by ZHU Xun; LI Lidan (He bei Institute of Mecahnical and Electrical Engineering; Shijiazhuang); WANG Jucai (Taihang Machine Works)
引用本文:

朱勋;李立丹;王聚才. 磷含量对Cr-Mn-Si钢珠光体、贝氏体组织冲击韧性及断裂形态的影响[J]. 金属学报, 1986, 22(6): 86-88.
, , . INFLUENCE OF P ON FRACTURE MORPHOLOGY OF Cr-Mn-Si STEEL WITH PEARLITE, BAINITE AND MARTENSITE STRUCTURES[J]. Acta Metall Sin, 1986, 22(6): 86-88.

全文: PDF(1385 KB)  
摘要: <正> 磷是钢中典型的有害杂质元素,它明显地降低钢的冲击韧性,提高韧性-脆性转变温度,当磷含量达到某一定值时,会造成沿晶脆性断裂。磷对马氏体及其回火组织的冲击韧性和断裂形态的影响已有报道,而磷对珠光体、贝氏体以及马氏体与贝氏体混合组织的韧性和断裂形态的影响研究得较少。本文研究了工程上广泛使用的30CrMnSiA钢淬火非马氏体组织的断裂形态和冲击韧性与磷含量的关系。
Abstract:The influence of P on impact toughness test and SEM observation was investigated on the 30CrMnSiA steel with pearlite, bainite and martensite-bainite mixed structures. Results showed that the cleavage element on the fracture surface increases and the impact toughness decreases as the increasing of P content. The intergranular fracture appeared till P up to 0.020%. An impact toughness sequence of various structures in the steel influenced by P may be arranged as: martensite+bainite>bainite>pearlite.
收稿日期: 1986-06-18     
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