Microstructure and low-cycle fatigue performance of selective electron beam melted Ti6Al4V alloy

Zhang, Yinling; Fang, Xiaojun; Wang, Hongtao; Zong, Ruowen; Zhao, Ertuan; Han, Jinguo; Dong, Zhichao; Zhang, Zhixiong

doi:10.1016/j.ijfatigue.2022.107017

Cited by 10 publications

(3 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 13 compares the fatigue results with the results from other publications. The test results agree well with results published for the LENS 16 and SEBM 43 manufacturing method. The fatigue properties of SLM manufactured parts differ in the literature.…”

Section: Strain-life Curvesupporting

confidence: 87%

“…It was not possible to locate a crack initiation site, although the fine crystalline structure inside the pores might act as crack initiation. Zhang 43 reported the same difficulties for their SEBM manufactured specimens. The examination of the fracture surface of specimen 11 (low strain) has shown one main crack initiation site, which is located at the surface of the specimen.…”

Section: Fractographic Analysismentioning

confidence: 74%

“…Although these values cannot be extrapolated to the exact percentage of pores in a volume, they can still be used to compare them to the results of other researchers. Zhang 43 measured a pore volume of 0.17% in their SEBM printed Ti6Al4V specimens. Hu 44 even reached a pore volume of 0.01% in SLM printed samples.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Fatigue behavior of Ti‐6Al‐4 V alloy manufactured by cold metal fusion

Kaschube,

Pawlowitz,

Solterbeck

et al. 2023

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

This study investigates the fatigue behavior of small specimens of Ti‐6Al‐4 V produced using the additive manufacturing process cold metal fusion. As the process is still comparatively new, no data were available beforehand. Strain‐controlled fatigue tests were carried out on small specimens under alternating loads. The results are presented in the form of a stress–strain diagram according to Ramberg–Osgood and a strain–life curve according to Coffin–Manson. Comparison with results reported for similar specimens fabricated via the laser engineered net shaping (LENS) additive method shows comparable fatigue behavior. Analysis of the fracture surfaces shows a very mixed fracture pattern with an often mountainous surface, especially for specimens tested under high strain. This made the detection of crack initiation very difficult for those specimens. The analysis of specimens tested under low strain reveals large surface defects to be the crack initiators. Smaller secondary cracks form at internal crack initiation facets.

show abstract

Section: Strain-life Curvesupporting

confidence: 87%

Section: Fractographic Analysismentioning

confidence: 74%