Table 3
Summary of microstructure-related mechanical properties of LDS fabricated by different processing techniques.
| Alloy composition | Processing techniques | Processing condition | Yield strengt h YS (MPa) | Ultimate tensile strength UTS (MPa) | Elongat ion (%) | Hardness (HV) | References |
|---|---|---|---|---|---|---|---|
| Fe−0.9C−29Mn−8Al | VAM | Annealed | 454 | 769 | 89 | NA | [74] |
| Age | 850 | 1027 | 27 | NA | |||
| Fe−7Al | VIM | Hot−rolled | 360 | 445 | 20 | 188 | [67] |
| Fe−9Al | VIM | Hot−rolled | 517 | 568 | 9 | 250 | [67] |
| Fe−20Mn−9Al−3Cr−xC | NNS rapid | As−cast 0.8C | 480 | 908 | 46 | 325 | [106] |
| where X=0, 3 and 6 | solidification | 1C Annealed | 809 | 977 | 38 | 350 | |
| centrifugal | 1.2C As−cast | 919 | 1037 | 33 | 368 | ||
| casting | Annealed 1.4C | 992 | 1047 | 33 | 420 | ||
| Fe−20Mn−9Al−1.2C− | NNS rapid | As−cast 0Cr | 836 | 972 | 35 | NA | [107] |
| xCr where X=0, 3 and | solidification | Annealed 0Cr | 967 | 1016 | 30 | NA | |
| 6 | centrifugal | As−cast 3Cr | 642 | 943 | 38 | NA | |
| Annealed 3Cr | 919 | 1033 | 33 | NA | |||
| As−cast 6Cr | 718 | 1001 | 38 | NA | |||
| Annealed 6Cr | 859 | 1028 | 32 | NA | |||
| Fe−12Mn−9Al−1.2C | NNS rapid solidification | NA | 1012 | 1182 | 28 | NA | [26] |
| centrifugal casting | |||||||
| Al−20Si−16Fe | MA+SPS | Milled for 8 hrs, 300 rpm | NA | NA | NA | 411 | [53] |
| Al−10Si−21Fe | MA+SPS | Milled for 8 hrs, 300 rpm | NA | NA | NA | 384 | [53] |
| FeAl20Si20 | MA+SPS | 8 hrs, 400 rpm | NA | NA | NA | Hardness increases from 25°C to 400°C and decreases from 600°C to 700°C | [108] |
| Al03 Fe3 Ti2 Cr2 | MA | Milled from 3 to 16 hrs. | NA | NA | NA | Hardness increases as milling time increases | [109] |
| Fe−16Mn−10Al−1.5C | SLM | 0.28 m/s | NA | NA | NA | 540 | [48] |
| 0.4 m/s | NA | NA | NA | 553 | |||
| 0.5 m/s | NA | NA | NA | 472 | |||
| Fe−17Mn−5Si−10Cr−4Ni−1(V, C) | WAAM | N/A | 472 | 26 | N/A | [43] | |
| Fe−30Mn−9AI−C−3Ni | SLM | 110W | 887 | 1077 | 40.8 | 294 | [103] |
| Fe−20.6Mn−0.014Al− | SLM | 0° rotation | 416 | 1085 | 27.4 | NA | [102] |
| 0.27C-3Ni-0.05Si | 45° rotation | 302 | 966 | 23.8 | NA | ||
| 90° rotation | 329 | 906 | 31.2 | NA |
VAM: Vacuum arc melting, VIM: Vacuum induction melting, NNS: Near Net Shape, MA: Mechanical alloying, SPS: Spark plasma sintering, WAAM: Wire arc additive manufacturing, SLM: Selective laser melting, NA: Not available.
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