金属学报  1986, Vol. 22 Issue (1): 79-149

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球墨铸铁的疲劳裂纹扩展机制图

胡志忠;郭大展;安仁杰

西安交通大学;西安交通大学;西安交通大学

THE CHART OF FATIGUE CRACK PROPAGATION MECHANISM FOR NODULAR GRAPHITE CAST IRON

HU Zhizhong; GUO Dazhan; AN Renje (Xi'an Jiaotong University)

胡志忠;郭大展;安仁杰. 球墨铸铁的疲劳裂纹扩展机制图[J]. 金属学报, 1986, 22(1): 79-149.
, , . THE CHART OF FATIGUE CRACK PROPAGATION MECHANISM FOR NODULAR GRAPHITE CAST IRON[J]. Acta Metall Sin, 1986, 22(1): 79-149.

摘要 参考文献 相关文章 Metrics 全文: PDF(1690 KB)   摘要: 用扫描电镜研究了珠光体和铁素体比例不同的球墨铸铁在不同AK值下,疲劳断裂机制的变化规律,并制作了疲劳裂纹扩展机制图。结果表明:铁素体的机制为T,I→S,I→S→S,D,珠光体的机制为T,S→C,S,含牛眼铁素体的球铁的机制为T,I→S,I→S,D,并讨论了转变条件与组织性能的关系,及60％铁素体的球铁晶间断裂比例最高的原因。 Abstract：The fatigue crack propagation mechanism (FCPM) in the nodular graphite cast iron of different microstructures with various proportions of pearlite and ferrite at distinct ΔK levels has been studied by SEM so as to construct their own FCPM charts. The FCPM of the ferritic nodular cast iron is shown to be: transgranular and intergranular fracture→striation and intergranular fracture→striation→striation and dimple rupture; that of pearlitic one to be: transgranular fracture and striation→striation and cleavage fracture; and that of one containing bull's eye ferrite to be: transgranular and intergranular fracture→striation and intergranular fracture→striation and dimple rupture. The correlation between the transition of FCPM and structure or properties as well as the reason why the highest percentage of intergranular fracture observed in the nodular cast iron with 60% ferrite have also been discussed. 收稿日期: 1986-01-18      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 胡志忠 郭大展 安仁杰 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1986/V22/I1/79 1 Masuda, C.; Tanaka, K.; Nishijima, S., Trans. Jpn. Soc. Mech. Eng., 46 (1980) , № 403, 247． 2 Kobayashi, H.; Fujita, K.; Komine, A.; Nakazawa, H., J. Soc. Mater. Sci. Jpn., 29 (1980) , №. 321, 580． 3 张平生;胡志忠;周惠久,西安交通大学学报,14 (1980) ,№ 3． 31． 4 郭大展;胡志忠;安仁杰;王静宜,西安交通大学学报,15 (1981) ,№ 6,51． 5 无锡柴油机厂;上海内燃机厂;西安交通大学强度研究所,球铁,(1981) ,№ 2,8． 6 胡志忠;郭大展;张平生;金雪贞,机械工程学报,(1982) ,№ 1,25． 7 McEvly, A.J., Am. Soc. Test. Mater., Spec. Tech. Publ., № 811, (1983) , 283． 8 Cooke, R.J.; Irving, P. E.; Booth, G.S.; Beevers, C.J., Eng. Fract. Mech., 7 (1975) , 69． 9 胡志忠;张平生,金属学报,19 (1983) ,143．* No related articles found! Viewed Full text Abstract Cited   Shared      Discussed