Tribological Investigations on Additively Manufactured Inconel 718 Features with Silicon Carbide Ball: Role of the Tribo-Oxide Layer

IF 2.9 3区 工程技术 Q2 ENGINEERING, CHEMICAL
M. M. Basha, M. R. Sankar, T. S. R. Ch. Murthy, A. K. Sahu, S. Majumdar
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引用次数: 0

Abstract

The current investigation delved into the friction and wear characteristics of abrasive-finished Inconel 718 alloys fabricated by additive manufacturing and casting methods. Silicon carbide balls were used as counter-body materials for all tribology tests. Variable loads of 10 N, 20 N, and 30 N were applied, along with frequencies of 5 Hz and 15 Hz, while maintaining a 1 mm stroke length for 30 min. Cast samples showed an increase in coefficient of friction (COF) when the load increased from 10 to 20 N at 5 Hz. COF value was decreased from 0.28 to 0.25 when the load was increased from 20 to 30 N while the frequency was maintained at 5 Hz. At the same frequency of 5 Hz, additively manufactured samples displayed a constant increase in COF from 0.19 to 0.35 as the load increased from 10 to 30 N. Consistent COF values were determined at 15 Hz for cast and additively manufactured samples. The COF for cast samples at a frequency of 15 Hz was 0.26, 0.25, and 0.25 for loads of 10 N, 20 N, and 30 N, respectively. For the same loads and frequencies, COF values of 0.23, 0.24, and 0.24 were reported in additively manufactured samples. At 15 Hz, both cast (7.25 × 10–6 mm3/N.m to 9.91 × 10–6 mm3/N.m) and additively manufactured (5.80 × 10–6 mm3/N.m to 6.18 × 10–6 mm3/N.m) samples exhibited constant increasing trends of specific wear rates when the loads increased from 10 to 30 N.

Graphical Abstract

Abstract Image

碳化硅球对添加式制造 Inconel 718 特征的摩擦学研究:三氧化物层的作用
目前的研究深入探讨了通过添加制造和铸造方法制造的磨料加工 Inconel 718 合金的摩擦和磨损特性。所有摩擦学测试均使用碳化硅球作为反体材料。测试中施加了 10 N、20 N 和 30 N 的不同载荷,频率分别为 5 Hz 和 15 Hz,同时在 30 分钟内保持 1 mm 的冲程长度。当负载从 10 牛顿增加到 20 牛顿,频率为 5 赫兹时,铸件样品的摩擦系数(COF)增加。当载荷从 20 牛增加到 30 牛,而频率保持在 5 赫兹时,COF 值从 0.28 降到 0.25。在相同的频率(5 赫兹)下,当载荷从 10 牛增加到 30 牛时,添加剂制造的样品的 COF 值从 0.19 持续增加到 0.35。在 15 Hz 频率下,铸造样品的 COF 值分别为 0.26、0.25 和 0.25,载荷分别为 10 N、20 N 和 30 N。在相同的载荷和频率下,加成型样品的 COF 值分别为 0.23、0.24 和 0.24。在 15 Hz 下,当载荷从 10 N 增加到 30 N 时,铸造样品(7.25 × 10-6 mm3/N.m 到 9.91 × 10-6 mm3/N.m)和添加制造样品(5.80 × 10-6 mm3/N.m 到 6.18 × 10-6 mm3/N.m)的特定磨损率都呈现出持续增长的趋势。
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来源期刊
Tribology Letters
Tribology Letters 工程技术-工程:化工
CiteScore
5.30
自引率
9.40%
发文量
116
审稿时长
2.5 months
期刊介绍: Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.
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