Effect of concentrated solar energy on microstructure evolution of selective laser melted Ti-6Al-4V alloy

被引：8

作者：

Chicos, Lucia-Antoneta ^{[1
]}

Zaharia, Sebastian Marian ^{[1
]}

Cempura, Grzegorz ^{[2
]}

Kruk, Adam ^{[2
]}

Lech, Sebastian ^{[2
]}

Kryshtal, Oleksandr ^{[2
]}

Zietara, Maciej ^{[2
]}

Michta, Grzegorz ^{[2
]}

Rodriguez, Jose ^{[3
]}

Cosnita, Mihaela ^{[4
]}

Pop, Mihai Alin ^{[5
]}

Lancea, Camil ^{[1
]}

机构：

[1] Transilvania Univ Brasov, Dept Mfg Engn, 5 Mihai Viteazu, Brasov 500174, Romania

[2] AGH Univ Sci & Technol, Int Ctr Electron Microscopy Mat Sci, 30 Mickiewicza Ave, PL-30059 Krakow, Poland

[3] CIEMAT Plataforma Solar Almeria, Ctra Senes Km 4-5,POB 22, Almeria 04200, Spain

[4] Transilvania Univ Brasov, Dept Prod Design Mechatron & Environm, 29 Eroilor, Brasov 500036, Romania

[5] Transilvania Univ Brasov, Dept Mat Sci, 1 Colina Univ, Brasov 500084, Romania

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2022年 / 118卷 / 9-10期

基金：

欧盟地平线“2020”;

关键词：

Concentrated solar energy; Ti-6Al-4V; Selective laser melting; Martensite decomposition; Microstructure; Sustainable manufacturing; MECHANICAL-PROPERTIES; HEAT-TREATMENT; TI6AL4V ALLOY; BIOMEDICAL APPLICATIONS; BEHAVIOR; TECHNOLOGIES; ENHANCEMENT; IMPROVEMENT; REDUCTION; SIZE;

D O I：

10.1007/s00170-021-08136-6

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper aims at analyzing the effect of heat treatment using Concentrated Solar Energy (CSE) on the martensitic microstructure evolution of Ti-6Al-4V alloy manufactured by Selective Laser Melting (SLM) technology. The application of CSE, a renewable energy sources, in post-processing of SLMed Ti-6Al-4V alloy is discussed based on heat treatments performed at Plataforma Solar de Almeria, Spain, using solar furnace SF40. In SLM process of Ti-6Al-4V powder because of local high heating followed by a rapid cooling the microstructure consists of an acicular martensite (alpha ' phase). Decomposition of alpha ' martensite of SLMed Ti-6Al-4V after heat treatment in solar furnace, using CSE, by SEM, EDX, TEM, SAED, and XRD analyses, was investigated. It has been found that for treatment below beta-transus at 705 degrees C, because of low temperature, the alpha ' martensite was not fully converted into alpha + beta and the beta phase was not identified by XRD analysis. Heat treatments below (940 degrees C followed by 650 degrees C) and above (1050 degrees C) beta-transus have revealed that alpha ' martensite was converted into a lamellar alpha + beta mixture and also beta phase was identified by XRD and TEM analysis. In the analyzed areas, middle areas of the samples contain an area fraction of beta phase greater than the top areas. Area fraction of beta phase, after heat treatment above beta-transus, at 1050 degrees C, is greater than that obtained after treatment below beta-transus.

引用

页码：3183 / 3207

页数：25

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