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金属学报  1979, Vol. 15 Issue (2): 283-291    
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用交流电位法测定钢试样开裂点的试验
谭志捷
一机部通用机械研究所断裂韧性组
DETECTION OF THE INITIATION OF CRACK BY A. C. POTENTIAL METHOD
Res. Gp. of Fracture Toughness; Institute of General Machinery Research
引用本文:

谭志捷. 用交流电位法测定钢试样开裂点的试验[J]. 金属学报, 1979, 15(2): 283-291.
. DETECTION OF THE INITIATION OF CRACK BY A. C. POTENTIAL METHOD[J]. Acta Metall Sin, 1979, 15(2): 283-291.

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摘要: 本文着重介绍交流电位法测定材料开裂点的原理和特点,用交流电位法对铁素体、珠光体-铁素体、马氏体、奥氏体等若干个钢种进行试验的初步结果: 1.各类钢电位曲线的特征; 2.电位曲线最低点与开裂点的对应关系; 3.电位增量与裂纹增量的关系。 本文还对引起电位曲线升降的各种因素作了初步分析。
Abstract:The principle and characteristics of the A. C. potential method for crack de-tection has been described. Various types of steel specimens including ferritic, fer-rite-pearlitic, martensitic or austenitic etc. have been examined by this method. At-tempts have been made to clarify the different patterns of potential curves associ-ated with the different steels, the relation between the peak values of potentialcurves and the initiation of cracking, and the relation between the increment ofpotential and the crack growth. Factors causing changes on the potential curvesare tentatively discussed.
收稿日期: 1979-02-18     
[1] Marandet, B. and Sanz, G., Paper presented at the 10th National Symposium on Fracture Mechanics, Philadelphia, 1976.a
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