Investigation on wall thickness reduction of hydropower pipeline underwent to erosion-corrosion process

Kumar

et al. 2023

Medical implants and other biomaterials are used by millions of individuals all over the globe to restore lost bodily functions due to injury or illness. Many of these implants fail after a short time or have difficulties, despite the fact that they play important roles in keeping a person's life safe or increasing the quality of their lives. It is the lack of biocompatibility that has proven to be the biggest downfall of biomaterials. Investments in this industry may be made using a thin film of hydroxyapatite powder (HAP) on stainless steel. Plates, screws, pins, and artificial joints are only some fixation devices for bones that often use 316L stainless steel. However, due to its unique advantageous qualities such as super-elasticity and low-profile feature, thin film HAP signals a high potential for use in compact new cardiac devices like the cardiovascular system and protecting stent grafts.

Section: Coatingsmentioning

confidence: 99%

Short review on hydroxyapatite powder coating for SS 316L

Kumar

et al. 2023

“…In most cases, thin and thick coatings are placed on bioimplants in order to protect them from corrosion and erosion [11][12][13][14]. Both corrosion and erosion have a significant negative impact on the longevity and tenacity of the various materials [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. Various surface protection techniques are used commercially, such as claddings [31][32][33][34][35][36][37][38][39][40][41][42][43], electrochemical vapor deposition (EVD) [44], chemical vapor deposition (CVD) [45][46][47][48], plasma vacuum deposition (PVD) [13,42,[49][50][51][52][53][54], HVOF/HVAF [17,…”

Section: Figure 1 Various Potential Uses For Hap Biomaterialsmentioning

confidence: 99%

Consequences of hydroxyapatite doping using plasma spray to implant biomaterials

Mehta

2023

Hydroxyapatite (HAp) is still one of the most common bioactive coatings used on metal implants in orthopaedics due to its biocompatibility. The application of HAp to metallic implants can be accomplished using a variety of processes. Plasma spray (PS) coating stands out as the method of choice due to its dependability, affordability, and ability to protect metal surfaces against rust and wear. The use of HAp in medicine has been limited due to the material's unfavorable mechanical characteristics, such as brittleness, a lack of fracture toughness, and inadequate tensile strength. In addition, the remodeling durations of HAp-covered implants are significantly longer, the rate of osseointegration is significantly lower, and no antimicrobial actions or features are present in these implants. The mechanical and biological properties of HAp have been improved by applying various approaches, all of which fall under the category of surface modification tactics. Dopants are one of those strategies that are extremely successful at changing the characteristics and using them in HAp is one of those methods. As a result, this review study aims to consolidate data on implant Hap coating using the plasma spray approach and assess the benefits and problems associated with employing this method. In addition, the paper addresses how altering the structural, chemical, and mechanical features of HAp can assist in overcoming these limitations. In conclusion, it explains how the incorporation of entering the HAp structure can change the features that, when coated using the plasma spraying approach, alter the functionality of the implant.

“…According to Bhuiyan and colleagues [43] findings, many different coating techniques that are able to increase the fatigue life of magnesium alloys when exposed to corrosive conditions [76]. Surface engineering methods provides a safeguard against the corrosion, biodegradation, and erosion [77][78][79][80][81][82][83][84][85][86][87][88][89][90][91][92][93]. Various coating methods are employed to protect the surface of different biomedical materials [94][95][96][97].…”

Section: Biocompatible Surface Chemical Treatmentmentioning

confidence: 99%

Corrosion cracking in Mg alloys based bioimplants

Sharma²

2023

Recently, magnesium alloys have garnered a lot of interest as a potentially useful material for applications involving biodegradable implants. Cracking or fracture of metal-based implants under the combined action of corrosion and mechanical stresses, namely stress corrosion cracking (SCC) is an obviously critical criterion before any new material might be deployed as implants. Cracking or fracture of metal-based implants occurs under the simultaneous action of corrosion and mechanical stresses. This article gives a review of the existing literature on the SCC of magnesium alloys in corrosive environments, including simulated body fluid and the accompanying fracture process. It also indicates the knowledge gap that exists in this area of research. In addition, a high-level review of the preventative measures that may be taken to avoid potential corrosion fatigue failures in magnesium alloys is provided.