Microstructure, Mechanical and Corrosion Behavior of Additively Manufactured Steel: A Review (Part 1)

2020 ◽  
Vol 62 (5) ◽  
pp. 503-516
Author(s):  
Emel Taban ◽  
Olatunji Oladimeji Ojo
Keyword(s):  
Additive Manufacturing ◽  
Future Research ◽  
Research Directions ◽  
Novel Technology ◽  
Current State ◽  
Future Research Directions ◽  
Modern Manufacturing ◽  
Mechanical Properties And Corrosion ◽  
Manufacturing Technologies ◽  
Insight Into

Abstract Flexible and digital manufacturing technologies like additive manufacturing (AM) have evolved as the future of modern manufacturing with the capability of obtaining multi-dimensional components and material functionality improvement. In the past decade, the additive manufacturing of steel has advanced into an effective approach for controlling local microstructure and fabricating hybrid build with tailored performance. As an emerging technology, there are still some challenges in the additive manufacturing of steel that need to be circumvented in order to attain the full potentials of this novel technology. This review paper examines the current state of additively manufactured steel as well as the associated microstructure, mechanical properties, and corrosion of as-built steel. An insight into further and future research directions is provided.

Liquid Resins-Based Additive Manufacturing

2017 ◽  
Vol 05 (02) ◽  
pp. 1740004 ◽  
Author(s):  
Fei Wang ◽  
Fuke Wang
Keyword(s):  
Additive Manufacturing ◽  
Recent Progress ◽  
Future Research ◽  
Research Directions ◽  
Future Research Directions ◽  
Manufacturing Technologies

In this review, additive manufacturing technologies using liquid resins as materials are reviewed from the perspective of printing technologies and materials. Most importantly, recent progress of new printing technologies and printers as well as novel printing materials and their applications are summarized, based on which potential future research directions are discussed at the end of this review.

Life cycle assessment of carbon capture and storage/utilization: From current state to future research directions and opportunities

2021 ◽  
Vol 108 ◽  
pp. 103309
Author(s):  
Tatiane Tobias da Cruz ◽  
José A. Perrella Balestieri ◽  
João M. de Toledo Silva ◽  
Mateus R.N. Vilanova ◽  
Otávio J. Oliveira ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Carbon Capture ◽  
Carbon Capture And Storage ◽  
Future Research ◽  
Research Directions ◽  
Current State ◽  
Future Research Directions ◽  
And Storage

scholarly journals A Conceptual Framework and Propositions for the Acceptance of Mobile Services

2007 ◽  
Vol 2 (2) ◽  
pp. 61-73 ◽  
Author(s):  
Sally Rao ◽  
Indrit Troshani
Keyword(s):  
Mobile Services ◽  
User Acceptance ◽  
Future Research ◽  
Research Directions ◽  
Consumer Adoption ◽  
Business Opportunities ◽  
Managerial Implications ◽  
Lead Users ◽  
Future Research Directions ◽  
Insight Into

Mobile services are heralded to create a tremendous spectrum of business opportunities. User acceptance of these services is of paramount importance. Consequently, a deeper insight into theory-based research is required to better understand the underlying motivations that lead users to adopting mobile services. As mobile services bring additional functional dimensions, including hedonic and experiential aspects, using extant models for predicting mobile services acceptance by individuals may be inadequate. The aim of this paper is to explore, analyse and critically assess the use of existing acceptance theories in the light of the evolving and ubiquitous mobile services and their underlying technologies. Constructs affecting consumer adoption behaviour are discussed and relevant propositions are made. Managerial implications are explored and future research directions are also identified.

scholarly journals Discriminated by an algorithm: a systematic review of discrimination and fairness by algorithmic decision-making in the context of HR recruitment and HR development

2020 ◽  
Vol 13 (3) ◽  
pp. 795-848
Author(s):  
Alina Köchling ◽  
Marius Claus Wehner
Keyword(s):  
Systematic Review ◽  
Decision Making ◽  
Current Knowledge ◽  
Future Research ◽  
Journal Articles ◽  
Research Directions ◽  
Current State ◽  
Management Context ◽  
Future Research Directions ◽  
State Of Research

AbstractAlgorithmic decision-making is becoming increasingly common as a new source of advice in HR recruitment and HR development. While firms implement algorithmic decision-making to save costs as well as increase efficiency and objectivity, algorithmic decision-making might also lead to the unfair treatment of certain groups of people, implicit discrimination, and perceived unfairness. Current knowledge about the threats of unfairness and (implicit) discrimination by algorithmic decision-making is mostly unexplored in the human resource management context. Our goal is to clarify the current state of research related to HR recruitment and HR development, identify research gaps, and provide crucial future research directions. Based on a systematic review of 36 journal articles from 2014 to 2020, we present some applications of algorithmic decision-making and evaluate the possible pitfalls in these two essential HR functions. In doing this, we inform researchers and practitioners, offer important theoretical and practical implications, and suggest fruitful avenues for future research.

The Environmental Impacts of Metal Powder Bed Additive Manufacturing

2020 ◽  
Vol 143 (3) ◽  
Author(s):  
Jiankan Liao ◽  
Daniel R. Cooper
Keyword(s):  
Additive Manufacturing ◽  
Environmental Impacts ◽  
Metal Powder ◽  
Future Research ◽  
Research Directions ◽  
Powder Bed ◽  
Direct Energy ◽  
Potential Benefits ◽  
Future Research Directions ◽  
Am Processes

Abstract Additive manufacturing (AM) is widely recognized as a critical pillar of advanced manufacturing and is moving from the design shop to the factory floor. As AM processes become more popular, it is paramount that engineers and policymakers understand and then reduce their environmental impacts. This article structures the current work on the environmental impacts of metal powder bed processes: selective laser melting (SLM), direct metal laser sintering (DMLS), electron beam melting (EBM), and binder jetting (BJ). We review the potential benefits and pitfalls of AM in each phase of a part's lifecycle and in different application domains (e.g., remanufacturing and hybrid manufacturing). We highlight critical uncertainties and future research directions throughout. The environmental impacts of AM are sensitive to the specific production and use-phase context; however, several broad lessons can be extracted from the literature. Unlike in conventional manufacturing, powder bed production impacts are dominated by the generation of the direct energy (electricity) required to operate the AM machines. Combined with a more energy-intensive feedstock (metal powder), this means that powder bed production impacts are higher than in conventional manufacturing unless production volumes are very small (saving tool production impacts), and/or there are significant material savings through part light weighting or improved buy-to-fly ratios.

scholarly journals Multiple Speed Assessments

2020 ◽  
Vol 36 (2) ◽  
pp. 237-249 ◽  
Author(s):  
Christoph Nils Herde ◽  
Filip Lievens
Keyword(s):  
Personnel Selection ◽  
Future Research ◽  
Behavioral Repertoire ◽  
Target Domain ◽  
Research Directions ◽  
Constructed Response ◽  
Overt Behavior ◽  
Objective Structured Clinical Examinations ◽  
Future Research Directions ◽  
Insight Into

Abstract. This paper presents Multiple Speed Assessments as an umbrella term to encompass a variety of approaches that include multiple (e.g., 20), short (e.g., 3 min), and often integrated interpersonal simulations to elicit overt behavior in a standardized way across participants. Multiple Speed Assessments can be used to get insight into the behavioral repertoire of a target person in situations sampled from a predefined target domain and their intraindividual variability across these situations. This paper outlines the characteristics and theoretical basis of Multiple Speed Assessments. We also discuss various already existing examples of Multiple Speed Assessments (Objective Structured Clinical Examinations, Multiple Mini-Interviews, and constructed response multimedia tests) and provide an overview of design variations. Finally, we present current research evidence and future research directions related to Multiple Speed Assessments. Although we present Multiple Speed Assessments in the context of personnel selection, it can also be used for assessment in the educational, personality, or clinical psychology field.

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