中国机械工程 ›› 2025, Vol. 36 ›› Issue (07): 1582-1591.DOI: 10.3969/j.issn.1004-132X.2025.07.021

• 先进材料加工工程 • 上一篇    下一篇

17-4PH不锈钢挤出成形制品的疲劳性能

姜世杰1,2*;蔡尚港1;英洪玮1;陈佳琦1   

  1. 1.东北大学机械工程与自动化学院,沈阳,110819
    2.辽宁省机械装备动力学可靠性重点实验室,沈阳,110819

  • 出版日期:2025-07-25 发布日期:2025-09-04
  • 作者简介:姜世杰*,男,1985年生,副教授,博士。研究方向为熔丝成型增材制造技术。发表论文50余篇。 E-mail:jiangsj@me.neu.edu.cn。
  • 基金资助:
    国家自然科学基金(52475093);省部级基金项目(2023-MSBA-028)

Fatigue Property of 17-4PH Products Fabricated via Metal Material Extrusion Technique

JIANG Shijie1,2*;CAI Shanggang1;YING Hongwei1;CHEN Jiaqi1   

  1. 1.School of Mechanical Engineering & Automation, Northeastern University,Shenyang,110819
    2.Key Laboratory of Dynamics Reliability of Mechanical Equipment of Liaoning Province, 
    Shenyang,110819

  • Online:2025-07-25 Published:2025-09-04

摘要: 随着金属材料挤出成形产品应用范围的扩大,为确保可靠性和安全性,须研究其疲劳性能。建立了考虑成形方向和填充角度的金属材料挤出成形烧结制品损伤疲劳寿命预测模型。制备了不同成形方向和填充角度的金属材料挤出成形烧结试件,并对其完成了密度、收缩率、拉伸性能和疲劳性能的研究。结果表明:疲劳寿命的理论值与实验值的误差为1.50%~11.83%,验证了所建模型的正确性;试件烧结后的尺寸收缩率、拉伸性能和疲劳性能呈各向异性。

关键词: 金属材料挤出成形, 预测模型, 疲劳性能, 拉伸性能, 填充角度, 成形方向

Abstract: With the expansion of the application rangs of metal material extrusion products, it was urgent to investigate their fatigue property to ensure the reliability and safety. A damage fatigue life prediction model for metal material extrusion sintered products was established considering forming orientations and filling angles. Metal material extrusion sintered specimens with different forming orientations and filling angles were fabricated, and their density, shrinkage rate, tensile property and fatigue property were studied. The results show that the errors between predicted and measured fatigue life are as from 1.50% to 11.83%, which validates the correctness of the proposed model, while the shrinkage rate, tensile property, and fatigue property of the sintered specimens exhibite anisotropy.

Key words: metal material extrusion, prediction model, fatigue property, tensile property, filling angle, forming orientation

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