| 工业纯钛低周疲劳应力—应变响应 |
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| 引用本文： | 张哲峰,谭晓礼,顾海澄. 工业纯钛低周疲劳应力—应变响应[J]. 材料研究学报, 1997, 11(5): 499-502 |
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| 作者姓名： | 张哲峰 谭晓礼 顾海澄 |
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| 作者单位： | 中国科学院金属研究所材料疲劳与断裂国家重点实验室!沈阳市,110015,西安交通大学,西安交通大学 |
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| 基金项目： | 国家自然科学基金!59341002 |
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| 摘 要： | 测量了工业纯钛低周疲劳的应力－应力响应,选择动态模量ＤＭ与弹性模量ＥＭ之比值ＤＭ．ＥＭ衡量材料的相对“软”“硬”程度,发现在各个应变幅下ＤＭ．ＥＭ有向０．３５－０．４０靠近的趋势。讨论了新的参量ＤＭ．ＥＭ与循环硬化循环软件之间的关系。
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| 关 键 词： | 工业纯钛 循环硬化 循环软件化 动态模量 |
| 收稿时间： | 1997-10-25 |
| 修稿时间： | 1997-10-25 |
STRESS-STRAIN RESPONSES OF LOW-CYCLE FATIGUE IN COMMERCIAL PURITY TITANIUM |
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| ZHANG Zhefeng,TAN Xiaoli,GU Haicheng. STRESS-STRAIN RESPONSES OF LOW-CYCLE FATIGUE IN COMMERCIAL PURITY TITANIUM[J]. Chinese Journal of Materials Research, 1997, 11(5): 499-502 |
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| Authors: | ZHANG Zhefeng TAN Xiaoli GU Haicheng |
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| Affiliation: | Xi'an Jiaotong Uniyersity |
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| Abstract: | The cyclic stress-strain responses of low cycle fatigue in annealed commercial purity titaniumhas been measured. The ratio (DM' EM) of dynamic modulus (DM) to elastic moduIus (EM) was selected to measure the relative "softeness" and "hardeness" degree of materials, the experiment results showed that the final value of DM' EM has a trend to reach some range from 0.35 to 0.40. The relationship of the new parameter (DM' EM) with cyclic hardening and cyclic softening was discussed. |
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| Keywords: | commercial purity titanium cyclic hardenning cyclic softenning dynamic modulus |
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